/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to mandos

  • Committer: teddy at bsnet
  • Date: 2010-09-23 20:14:08 UTC
  • Revision ID: teddy@fukt.bsnet.se-20100923201408-4vcvjmml000fr8y5
* Makefile (DOCS): Added "plymouth.8mandos".
  (install-server): Also install "mandos-monitor.8" and
                    "mandos-ctl.8".
  (install-client-nokey): Also install "plymouth.8mandos".
  (uninstall-server): Also remove "mandos-monitor.8" and
                      "mandos-ctl.8".
  (uninstall-client): Also remove "plymouth.8mandos".
* plugins.d/plymouth.xml: New.

Show diffs side-by-side

added added

removed removed

Lines of Context:
11
11
# "AvahiService" class, and some lines in "main".
12
12
13
13
# Everything else is
14
 
# Copyright © 2008-2012 Teddy Hogeborn
15
 
# Copyright © 2008-2012 Björn Påhlsson
 
14
# Copyright © 2008,2009 Teddy Hogeborn
 
15
# Copyright © 2008,2009 Björn Påhlsson
16
16
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
28
28
# along with this program.  If not, see
29
29
# <http://www.gnu.org/licenses/>.
30
30
31
 
# Contact the authors at <mandos@recompile.se>.
 
31
# Contact the authors at <mandos@fukt.bsnet.se>.
32
32
33
33
 
34
 
from __future__ import (division, absolute_import, print_function,
35
 
                        unicode_literals)
 
34
from __future__ import division, with_statement, absolute_import
36
35
 
37
36
import SocketServer as socketserver
38
37
import socket
39
 
import argparse
 
38
import optparse
40
39
import datetime
41
40
import errno
42
41
import gnutls.crypto
62
61
import functools
63
62
import cPickle as pickle
64
63
import multiprocessing
65
 
import types
66
 
import binascii
67
 
import tempfile
68
64
 
69
65
import dbus
70
66
import dbus.service
75
71
import ctypes.util
76
72
import xml.dom.minidom
77
73
import inspect
78
 
import GnuPGInterface
79
74
 
80
75
try:
81
76
    SO_BINDTODEVICE = socket.SO_BINDTODEVICE
85
80
    except ImportError:
86
81
        SO_BINDTODEVICE = None
87
82
 
88
 
version = "1.5.0"
89
 
stored_state_file = "clients.pickle"
90
 
 
91
 
logger = logging.getLogger()
 
83
 
 
84
version = "1.0.14"
 
85
 
 
86
#logger = logging.getLogger(u'mandos')
 
87
logger = logging.Logger(u'mandos')
92
88
syslogger = (logging.handlers.SysLogHandler
93
89
             (facility = logging.handlers.SysLogHandler.LOG_DAEMON,
94
 
              address = str("/dev/log")))
95
 
 
96
 
try:
97
 
    if_nametoindex = (ctypes.cdll.LoadLibrary
98
 
                      (ctypes.util.find_library("c"))
99
 
                      .if_nametoindex)
100
 
except (OSError, AttributeError):
101
 
    def if_nametoindex(interface):
102
 
        "Get an interface index the hard way, i.e. using fcntl()"
103
 
        SIOCGIFINDEX = 0x8933  # From /usr/include/linux/sockios.h
104
 
        with contextlib.closing(socket.socket()) as s:
105
 
            ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
106
 
                                struct.pack(str("16s16x"),
107
 
                                            interface))
108
 
        interface_index = struct.unpack(str("I"),
109
 
                                        ifreq[16:20])[0]
110
 
        return interface_index
111
 
 
112
 
 
113
 
def initlogger(debug, level=logging.WARNING):
114
 
    """init logger and add loglevel"""
115
 
    
116
 
    syslogger.setFormatter(logging.Formatter
117
 
                           ('Mandos [%(process)d]: %(levelname)s:'
118
 
                            ' %(message)s'))
119
 
    logger.addHandler(syslogger)
120
 
    
121
 
    if debug:
122
 
        console = logging.StreamHandler()
123
 
        console.setFormatter(logging.Formatter('%(asctime)s %(name)s'
124
 
                                               ' [%(process)d]:'
125
 
                                               ' %(levelname)s:'
126
 
                                               ' %(message)s'))
127
 
        logger.addHandler(console)
128
 
    logger.setLevel(level)
129
 
 
130
 
 
131
 
class PGPError(Exception):
132
 
    """Exception if encryption/decryption fails"""
133
 
    pass
134
 
 
135
 
 
136
 
class PGPEngine(object):
137
 
    """A simple class for OpenPGP symmetric encryption & decryption"""
138
 
    def __init__(self):
139
 
        self.gnupg = GnuPGInterface.GnuPG()
140
 
        self.tempdir = tempfile.mkdtemp(prefix="mandos-")
141
 
        self.gnupg = GnuPGInterface.GnuPG()
142
 
        self.gnupg.options.meta_interactive = False
143
 
        self.gnupg.options.homedir = self.tempdir
144
 
        self.gnupg.options.extra_args.extend(['--force-mdc',
145
 
                                              '--quiet',
146
 
                                              '--no-use-agent'])
147
 
    
148
 
    def __enter__(self):
149
 
        return self
150
 
    
151
 
    def __exit__ (self, exc_type, exc_value, traceback):
152
 
        self._cleanup()
153
 
        return False
154
 
    
155
 
    def __del__(self):
156
 
        self._cleanup()
157
 
    
158
 
    def _cleanup(self):
159
 
        if self.tempdir is not None:
160
 
            # Delete contents of tempdir
161
 
            for root, dirs, files in os.walk(self.tempdir,
162
 
                                             topdown = False):
163
 
                for filename in files:
164
 
                    os.remove(os.path.join(root, filename))
165
 
                for dirname in dirs:
166
 
                    os.rmdir(os.path.join(root, dirname))
167
 
            # Remove tempdir
168
 
            os.rmdir(self.tempdir)
169
 
            self.tempdir = None
170
 
    
171
 
    def password_encode(self, password):
172
 
        # Passphrase can not be empty and can not contain newlines or
173
 
        # NUL bytes.  So we prefix it and hex encode it.
174
 
        return b"mandos" + binascii.hexlify(password)
175
 
    
176
 
    def encrypt(self, data, password):
177
 
        self.gnupg.passphrase = self.password_encode(password)
178
 
        with open(os.devnull) as devnull:
179
 
            try:
180
 
                proc = self.gnupg.run(['--symmetric'],
181
 
                                      create_fhs=['stdin', 'stdout'],
182
 
                                      attach_fhs={'stderr': devnull})
183
 
                with contextlib.closing(proc.handles['stdin']) as f:
184
 
                    f.write(data)
185
 
                with contextlib.closing(proc.handles['stdout']) as f:
186
 
                    ciphertext = f.read()
187
 
                proc.wait()
188
 
            except IOError as e:
189
 
                raise PGPError(e)
190
 
        self.gnupg.passphrase = None
191
 
        return ciphertext
192
 
    
193
 
    def decrypt(self, data, password):
194
 
        self.gnupg.passphrase = self.password_encode(password)
195
 
        with open(os.devnull) as devnull:
196
 
            try:
197
 
                proc = self.gnupg.run(['--decrypt'],
198
 
                                      create_fhs=['stdin', 'stdout'],
199
 
                                      attach_fhs={'stderr': devnull})
200
 
                with contextlib.closing(proc.handles['stdin'] ) as f:
201
 
                    f.write(data)
202
 
                with contextlib.closing(proc.handles['stdout']) as f:
203
 
                    decrypted_plaintext = f.read()
204
 
                proc.wait()
205
 
            except IOError as e:
206
 
                raise PGPError(e)
207
 
        self.gnupg.passphrase = None
208
 
        return decrypted_plaintext
209
 
 
210
 
 
 
90
              address = "/dev/log"))
 
91
syslogger.setFormatter(logging.Formatter
 
92
                       (u'Mandos [%(process)d]: %(levelname)s:'
 
93
                        u' %(message)s'))
 
94
logger.addHandler(syslogger)
 
95
 
 
96
console = logging.StreamHandler()
 
97
console.setFormatter(logging.Formatter(u'%(name)s [%(process)d]:'
 
98
                                       u' %(levelname)s:'
 
99
                                       u' %(message)s'))
 
100
logger.addHandler(console)
211
101
 
212
102
class AvahiError(Exception):
213
103
    def __init__(self, value, *args, **kwargs):
229
119
    Attributes:
230
120
    interface: integer; avahi.IF_UNSPEC or an interface index.
231
121
               Used to optionally bind to the specified interface.
232
 
    name: string; Example: 'Mandos'
233
 
    type: string; Example: '_mandos._tcp'.
 
122
    name: string; Example: u'Mandos'
 
123
    type: string; Example: u'_mandos._tcp'.
234
124
                  See <http://www.dns-sd.org/ServiceTypes.html>
235
125
    port: integer; what port to announce
236
126
    TXT: list of strings; TXT record for the service
245
135
    """
246
136
    def __init__(self, interface = avahi.IF_UNSPEC, name = None,
247
137
                 servicetype = None, port = None, TXT = None,
248
 
                 domain = "", host = "", max_renames = 32768,
 
138
                 domain = u"", host = u"", max_renames = 32768,
249
139
                 protocol = avahi.PROTO_UNSPEC, bus = None):
250
140
        self.interface = interface
251
141
        self.name = name
260
150
        self.group = None       # our entry group
261
151
        self.server = None
262
152
        self.bus = bus
263
 
        self.entry_group_state_changed_match = None
264
153
    def rename(self):
265
154
        """Derived from the Avahi example code"""
266
155
        if self.rename_count >= self.max_renames:
267
 
            logger.critical("No suitable Zeroconf service name found"
268
 
                            " after %i retries, exiting.",
 
156
            logger.critical(u"No suitable Zeroconf service name found"
 
157
                            u" after %i retries, exiting.",
269
158
                            self.rename_count)
270
 
            raise AvahiServiceError("Too many renames")
271
 
        self.name = unicode(self.server
272
 
                            .GetAlternativeServiceName(self.name))
273
 
        logger.info("Changing Zeroconf service name to %r ...",
 
159
            raise AvahiServiceError(u"Too many renames")
 
160
        self.name = unicode(self.server.GetAlternativeServiceName(self.name))
 
161
        logger.info(u"Changing Zeroconf service name to %r ...",
274
162
                    self.name)
 
163
        syslogger.setFormatter(logging.Formatter
 
164
                               (u'Mandos (%s) [%%(process)d]:'
 
165
                                u' %%(levelname)s: %%(message)s'
 
166
                                % self.name))
275
167
        self.remove()
276
168
        try:
277
169
            self.add()
278
 
        except dbus.exceptions.DBusException as error:
279
 
            logger.critical("DBusException: %s", error)
 
170
        except dbus.exceptions.DBusException, error:
 
171
            logger.critical(u"DBusException: %s", error)
280
172
            self.cleanup()
281
173
            os._exit(1)
282
174
        self.rename_count += 1
283
175
    def remove(self):
284
176
        """Derived from the Avahi example code"""
285
 
        if self.entry_group_state_changed_match is not None:
286
 
            self.entry_group_state_changed_match.remove()
287
 
            self.entry_group_state_changed_match = None
288
177
        if self.group is not None:
289
178
            self.group.Reset()
290
179
    def add(self):
291
180
        """Derived from the Avahi example code"""
292
 
        self.remove()
293
181
        if self.group is None:
294
182
            self.group = dbus.Interface(
295
183
                self.bus.get_object(avahi.DBUS_NAME,
296
184
                                    self.server.EntryGroupNew()),
297
185
                avahi.DBUS_INTERFACE_ENTRY_GROUP)
298
 
        self.entry_group_state_changed_match = (
299
 
            self.group.connect_to_signal(
300
 
                'StateChanged', self.entry_group_state_changed))
301
 
        logger.debug("Adding Zeroconf service '%s' of type '%s' ...",
 
186
            self.group.connect_to_signal('StateChanged',
 
187
                                         self
 
188
                                         .entry_group_state_changed)
 
189
        logger.debug(u"Adding Zeroconf service '%s' of type '%s' ...",
302
190
                     self.name, self.type)
303
191
        self.group.AddService(
304
192
            self.interface,
311
199
        self.group.Commit()
312
200
    def entry_group_state_changed(self, state, error):
313
201
        """Derived from the Avahi example code"""
314
 
        logger.debug("Avahi entry group state change: %i", state)
 
202
        logger.debug(u"Avahi entry group state change: %i", state)
315
203
        
316
204
        if state == avahi.ENTRY_GROUP_ESTABLISHED:
317
 
            logger.debug("Zeroconf service established.")
 
205
            logger.debug(u"Zeroconf service established.")
318
206
        elif state == avahi.ENTRY_GROUP_COLLISION:
319
 
            logger.info("Zeroconf service name collision.")
 
207
            logger.warning(u"Zeroconf service name collision.")
320
208
            self.rename()
321
209
        elif state == avahi.ENTRY_GROUP_FAILURE:
322
 
            logger.critical("Avahi: Error in group state changed %s",
 
210
            logger.critical(u"Avahi: Error in group state changed %s",
323
211
                            unicode(error))
324
 
            raise AvahiGroupError("State changed: %s"
 
212
            raise AvahiGroupError(u"State changed: %s"
325
213
                                  % unicode(error))
326
214
    def cleanup(self):
327
215
        """Derived from the Avahi example code"""
328
216
        if self.group is not None:
329
 
            try:
330
 
                self.group.Free()
331
 
            except (dbus.exceptions.UnknownMethodException,
332
 
                    dbus.exceptions.DBusException):
333
 
                pass
 
217
            self.group.Free()
334
218
            self.group = None
335
 
        self.remove()
336
 
    def server_state_changed(self, state, error=None):
 
219
    def server_state_changed(self, state):
337
220
        """Derived from the Avahi example code"""
338
 
        logger.debug("Avahi server state change: %i", state)
339
 
        bad_states = { avahi.SERVER_INVALID:
340
 
                           "Zeroconf server invalid",
341
 
                       avahi.SERVER_REGISTERING: None,
342
 
                       avahi.SERVER_COLLISION:
343
 
                           "Zeroconf server name collision",
344
 
                       avahi.SERVER_FAILURE:
345
 
                           "Zeroconf server failure" }
346
 
        if state in bad_states:
347
 
            if bad_states[state] is not None:
348
 
                if error is None:
349
 
                    logger.error(bad_states[state])
350
 
                else:
351
 
                    logger.error(bad_states[state] + ": %r", error)
352
 
            self.cleanup()
 
221
        logger.debug(u"Avahi server state change: %i", state)
 
222
        if state == avahi.SERVER_COLLISION:
 
223
            logger.error(u"Zeroconf server name collision")
 
224
            self.remove()
353
225
        elif state == avahi.SERVER_RUNNING:
354
226
            self.add()
355
 
        else:
356
 
            if error is None:
357
 
                logger.debug("Unknown state: %r", state)
358
 
            else:
359
 
                logger.debug("Unknown state: %r: %r", state, error)
360
227
    def activate(self):
361
228
        """Derived from the Avahi example code"""
362
229
        if self.server is None:
363
230
            self.server = dbus.Interface(
364
231
                self.bus.get_object(avahi.DBUS_NAME,
365
 
                                    avahi.DBUS_PATH_SERVER,
366
 
                                    follow_name_owner_changes=True),
 
232
                                    avahi.DBUS_PATH_SERVER),
367
233
                avahi.DBUS_INTERFACE_SERVER)
368
 
        self.server.connect_to_signal("StateChanged",
 
234
        self.server.connect_to_signal(u"StateChanged",
369
235
                                 self.server_state_changed)
370
236
        self.server_state_changed(self.server.GetState())
371
237
 
372
 
class AvahiServiceToSyslog(AvahiService):
373
 
    def rename(self):
374
 
        """Add the new name to the syslog messages"""
375
 
        ret = AvahiService.rename(self)
376
 
        syslogger.setFormatter(logging.Formatter
377
 
                               ('Mandos (%s) [%%(process)d]:'
378
 
                                ' %%(levelname)s: %%(message)s'
379
 
                                % self.name))
380
 
        return ret
381
238
 
382
 
def timedelta_to_milliseconds(td):
383
 
    "Convert a datetime.timedelta() to milliseconds"
384
 
    return ((td.days * 24 * 60 * 60 * 1000)
385
 
            + (td.seconds * 1000)
386
 
            + (td.microseconds // 1000))
387
 
        
388
239
class Client(object):
389
240
    """A representation of a client host served by this server.
390
241
    
391
242
    Attributes:
392
 
    approved:   bool(); 'None' if not yet approved/disapproved
393
 
    approval_delay: datetime.timedelta(); Time to wait for approval
394
 
    approval_duration: datetime.timedelta(); Duration of one approval
 
243
    name:       string; from the config file, used in log messages and
 
244
                        D-Bus identifiers
 
245
    fingerprint: string (40 or 32 hexadecimal digits); used to
 
246
                 uniquely identify the client
 
247
    secret:     bytestring; sent verbatim (over TLS) to client
 
248
    host:       string; available for use by the checker command
 
249
    created:    datetime.datetime(); (UTC) object creation
 
250
    last_enabled: datetime.datetime(); (UTC)
 
251
    enabled:    bool()
 
252
    last_checked_ok: datetime.datetime(); (UTC) or None
 
253
    timeout:    datetime.timedelta(); How long from last_checked_ok
 
254
                                      until this client is disabled
 
255
    interval:   datetime.timedelta(); How often to start a new checker
 
256
    disable_hook:  If set, called by disable() as disable_hook(self)
395
257
    checker:    subprocess.Popen(); a running checker process used
396
258
                                    to see if the client lives.
397
259
                                    'None' if no process is running.
398
 
    checker_callback_tag: a gobject event source tag, or None
399
 
    checker_command: string; External command which is run to check
400
 
                     if client lives.  %() expansions are done at
 
260
    checker_initiator_tag: a gobject event source tag, or None
 
261
    disable_initiator_tag: - '' -
 
262
    checker_callback_tag:  - '' -
 
263
    checker_command: string; External command which is run to check if
 
264
                     client lives.  %() expansions are done at
401
265
                     runtime with vars(self) as dict, so that for
402
266
                     instance %(name)s can be used in the command.
403
 
    checker_initiator_tag: a gobject event source tag, or None
404
 
    created:    datetime.datetime(); (UTC) object creation
405
 
    client_structure: Object describing what attributes a client has
406
 
                      and is used for storing the client at exit
407
267
    current_checker_command: string; current running checker_command
408
 
    disable_initiator_tag: a gobject event source tag, or None
409
 
    enabled:    bool()
410
 
    fingerprint: string (40 or 32 hexadecimal digits); used to
411
 
                 uniquely identify the client
412
 
    host:       string; available for use by the checker command
413
 
    interval:   datetime.timedelta(); How often to start a new checker
414
 
    last_approval_request: datetime.datetime(); (UTC) or None
415
 
    last_checked_ok: datetime.datetime(); (UTC) or None
416
 
    last_checker_status: integer between 0 and 255 reflecting exit
417
 
                         status of last checker. -1 reflects crashed
418
 
                         checker, or None.
419
 
    last_enabled: datetime.datetime(); (UTC) or None
420
 
    name:       string; from the config file, used in log messages and
421
 
                        D-Bus identifiers
422
 
    secret:     bytestring; sent verbatim (over TLS) to client
423
 
    timeout:    datetime.timedelta(); How long from last_checked_ok
424
 
                                      until this client is disabled
425
 
    extended_timeout:   extra long timeout when password has been sent
426
 
    runtime_expansions: Allowed attributes for runtime expansion.
427
 
    expires:    datetime.datetime(); time (UTC) when a client will be
428
 
                disabled, or None
 
268
    approval_delay: datetime.timedelta(); Time to wait for approval
 
269
    _approved:   bool(); 'None' if not yet approved/disapproved
 
270
    approval_duration: datetime.timedelta(); Duration of one approval
429
271
    """
430
272
    
431
 
    runtime_expansions = ("approval_delay", "approval_duration",
432
 
                          "created", "enabled", "fingerprint",
433
 
                          "host", "interval", "last_checked_ok",
434
 
                          "last_enabled", "name", "timeout")
435
 
    client_defaults = { "timeout": "5m",
436
 
                        "extended_timeout": "15m",
437
 
                        "interval": "2m",
438
 
                        "checker": "fping -q -- %%(host)s",
439
 
                        "host": "",
440
 
                        "approval_delay": "0s",
441
 
                        "approval_duration": "1s",
442
 
                        "approved_by_default": "True",
443
 
                        "enabled": "True",
444
 
                        }
 
273
    @staticmethod
 
274
    def _timedelta_to_milliseconds(td):
 
275
        "Convert a datetime.timedelta() to milliseconds"
 
276
        return ((td.days * 24 * 60 * 60 * 1000)
 
277
                + (td.seconds * 1000)
 
278
                + (td.microseconds // 1000))
445
279
    
446
280
    def timeout_milliseconds(self):
447
281
        "Return the 'timeout' attribute in milliseconds"
448
 
        return timedelta_to_milliseconds(self.timeout)
449
 
    
450
 
    def extended_timeout_milliseconds(self):
451
 
        "Return the 'extended_timeout' attribute in milliseconds"
452
 
        return timedelta_to_milliseconds(self.extended_timeout)
 
282
        return self._timedelta_to_milliseconds(self.timeout)
453
283
    
454
284
    def interval_milliseconds(self):
455
285
        "Return the 'interval' attribute in milliseconds"
456
 
        return timedelta_to_milliseconds(self.interval)
457
 
    
 
286
        return self._timedelta_to_milliseconds(self.interval)
 
287
 
458
288
    def approval_delay_milliseconds(self):
459
 
        return timedelta_to_milliseconds(self.approval_delay)
460
 
 
461
 
    @staticmethod
462
 
    def config_parser(config):
463
 
        """Construct a new dict of client settings of this form:
464
 
        { client_name: {setting_name: value, ...}, ...}
465
 
        with exceptions for any special settings as defined above.
466
 
        NOTE: Must be a pure function. Must return the same result
467
 
        value given the same arguments.
468
 
        """
469
 
        settings = {}
470
 
        for client_name in config.sections():
471
 
            section = dict(config.items(client_name))
472
 
            client = settings[client_name] = {}
473
 
            
474
 
            client["host"] = section["host"]
475
 
            # Reformat values from string types to Python types
476
 
            client["approved_by_default"] = config.getboolean(
477
 
                client_name, "approved_by_default")
478
 
            client["enabled"] = config.getboolean(client_name,
479
 
                                                  "enabled")
480
 
            
481
 
            client["fingerprint"] = (section["fingerprint"].upper()
482
 
                                     .replace(" ", ""))
483
 
            if "secret" in section:
484
 
                client["secret"] = section["secret"].decode("base64")
485
 
            elif "secfile" in section:
486
 
                with open(os.path.expanduser(os.path.expandvars
487
 
                                             (section["secfile"])),
488
 
                          "rb") as secfile:
489
 
                    client["secret"] = secfile.read()
490
 
            else:
491
 
                raise TypeError("No secret or secfile for section %s"
492
 
                                % section)
493
 
            client["timeout"] = string_to_delta(section["timeout"])
494
 
            client["extended_timeout"] = string_to_delta(
495
 
                section["extended_timeout"])
496
 
            client["interval"] = string_to_delta(section["interval"])
497
 
            client["approval_delay"] = string_to_delta(
498
 
                section["approval_delay"])
499
 
            client["approval_duration"] = string_to_delta(
500
 
                section["approval_duration"])
501
 
            client["checker_command"] = section["checker"]
502
 
            client["last_approval_request"] = None
503
 
            client["last_checked_ok"] = None
504
 
            client["last_checker_status"] = None
505
 
        
506
 
        return settings
507
 
        
508
 
        
509
 
    def __init__(self, settings, name = None):
 
289
        return self._timedelta_to_milliseconds(self.approval_delay)
 
290
    
 
291
    def __init__(self, name = None, disable_hook=None, config=None):
510
292
        """Note: the 'checker' key in 'config' sets the
511
293
        'checker_command' attribute and *not* the 'checker'
512
294
        attribute."""
513
295
        self.name = name
514
 
        # adding all client settings
515
 
        for setting, value in settings.iteritems():
516
 
            setattr(self, setting, value)
517
 
        
518
 
        if self.enabled:
519
 
            if not hasattr(self, "last_enabled"):
520
 
                self.last_enabled = datetime.datetime.utcnow()
521
 
            if not hasattr(self, "expires"):
522
 
                self.expires = (datetime.datetime.utcnow()
523
 
                                + self.timeout)
524
 
        else:
525
 
            self.last_enabled = None
526
 
            self.expires = None
527
 
       
528
 
        logger.debug("Creating client %r", self.name)
 
296
        if config is None:
 
297
            config = {}
 
298
        logger.debug(u"Creating client %r", self.name)
529
299
        # Uppercase and remove spaces from fingerprint for later
530
300
        # comparison purposes with return value from the fingerprint()
531
301
        # function
532
 
        logger.debug("  Fingerprint: %s", self.fingerprint)
533
 
        self.created = settings.get("created",
534
 
                                    datetime.datetime.utcnow())
535
 
 
536
 
        # attributes specific for this server instance
 
302
        self.fingerprint = (config[u"fingerprint"].upper()
 
303
                            .replace(u" ", u""))
 
304
        logger.debug(u"  Fingerprint: %s", self.fingerprint)
 
305
        if u"secret" in config:
 
306
            self.secret = config[u"secret"].decode(u"base64")
 
307
        elif u"secfile" in config:
 
308
            with open(os.path.expanduser(os.path.expandvars
 
309
                                         (config[u"secfile"])),
 
310
                      "rb") as secfile:
 
311
                self.secret = secfile.read()
 
312
        else:
 
313
            raise TypeError(u"No secret or secfile for client %s"
 
314
                            % self.name)
 
315
        self.host = config.get(u"host", u"")
 
316
        self.created = datetime.datetime.utcnow()
 
317
        self.enabled = False
 
318
        self.last_enabled = None
 
319
        self.last_checked_ok = None
 
320
        self.timeout = string_to_delta(config[u"timeout"])
 
321
        self.interval = string_to_delta(config[u"interval"])
 
322
        self.disable_hook = disable_hook
537
323
        self.checker = None
538
324
        self.checker_initiator_tag = None
539
325
        self.disable_initiator_tag = None
540
326
        self.checker_callback_tag = None
 
327
        self.checker_command = config[u"checker"]
541
328
        self.current_checker_command = None
542
 
        self.approved = None
 
329
        self.last_connect = None
 
330
        self._approved = None
 
331
        self.approved_by_default = config.get(u"approved_by_default",
 
332
                                              True)
543
333
        self.approvals_pending = 0
544
 
        self.changedstate = (multiprocessing_manager
545
 
                             .Condition(multiprocessing_manager
546
 
                                        .Lock()))
547
 
        self.client_structure = [attr for attr in
548
 
                                 self.__dict__.iterkeys()
549
 
                                 if not attr.startswith("_")]
550
 
        self.client_structure.append("client_structure")
551
 
        
552
 
        for name, t in inspect.getmembers(type(self),
553
 
                                          lambda obj:
554
 
                                              isinstance(obj,
555
 
                                                         property)):
556
 
            if not name.startswith("_"):
557
 
                self.client_structure.append(name)
 
334
        self.approval_delay = string_to_delta(
 
335
            config[u"approval_delay"])
 
336
        self.approval_duration = string_to_delta(
 
337
            config[u"approval_duration"])
 
338
        self.changedstate = multiprocessing_manager.Condition(multiprocessing_manager.Lock())
558
339
    
559
 
    # Send notice to process children that client state has changed
560
340
    def send_changedstate(self):
561
 
        with self.changedstate:
562
 
            self.changedstate.notify_all()
563
 
    
 
341
        self.changedstate.acquire()
 
342
        self.changedstate.notify_all()
 
343
        self.changedstate.release()
 
344
        
564
345
    def enable(self):
565
346
        """Start this client's checker and timeout hooks"""
566
 
        if getattr(self, "enabled", False):
 
347
        if getattr(self, u"enabled", False):
567
348
            # Already enabled
568
349
            return
569
350
        self.send_changedstate()
570
 
        self.expires = datetime.datetime.utcnow() + self.timeout
571
 
        self.enabled = True
572
351
        self.last_enabled = datetime.datetime.utcnow()
573
 
        self.init_checker()
574
 
    
575
 
    def disable(self, quiet=True):
576
 
        """Disable this client."""
577
 
        if not getattr(self, "enabled", False):
578
 
            return False
579
 
        if not quiet:
580
 
            self.send_changedstate()
581
 
        if not quiet:
582
 
            logger.info("Disabling client %s", self.name)
583
 
        if getattr(self, "disable_initiator_tag", False):
584
 
            gobject.source_remove(self.disable_initiator_tag)
585
 
            self.disable_initiator_tag = None
586
 
        self.expires = None
587
 
        if getattr(self, "checker_initiator_tag", False):
588
 
            gobject.source_remove(self.checker_initiator_tag)
589
 
            self.checker_initiator_tag = None
590
 
        self.stop_checker()
591
 
        self.enabled = False
592
 
        # Do not run this again if called by a gobject.timeout_add
593
 
        return False
594
 
    
595
 
    def __del__(self):
596
 
        self.disable()
597
 
    
598
 
    def init_checker(self):
599
352
        # Schedule a new checker to be started an 'interval' from now,
600
353
        # and every interval from then on.
601
354
        self.checker_initiator_tag = (gobject.timeout_add
605
358
        self.disable_initiator_tag = (gobject.timeout_add
606
359
                                   (self.timeout_milliseconds(),
607
360
                                    self.disable))
 
361
        self.enabled = True
608
362
        # Also start a new checker *right now*.
609
363
        self.start_checker()
610
364
    
 
365
    def disable(self, quiet=True):
 
366
        """Disable this client."""
 
367
        if not getattr(self, "enabled", False):
 
368
            return False
 
369
        if not quiet:
 
370
            self.send_changedstate()
 
371
        if not quiet:
 
372
            logger.info(u"Disabling client %s", self.name)
 
373
        if getattr(self, u"disable_initiator_tag", False):
 
374
            gobject.source_remove(self.disable_initiator_tag)
 
375
            self.disable_initiator_tag = None
 
376
        if getattr(self, u"checker_initiator_tag", False):
 
377
            gobject.source_remove(self.checker_initiator_tag)
 
378
            self.checker_initiator_tag = None
 
379
        self.stop_checker()
 
380
        if self.disable_hook:
 
381
            self.disable_hook(self)
 
382
        self.enabled = False
 
383
        # Do not run this again if called by a gobject.timeout_add
 
384
        return False
 
385
    
 
386
    def __del__(self):
 
387
        self.disable_hook = None
 
388
        self.disable()
 
389
    
611
390
    def checker_callback(self, pid, condition, command):
612
391
        """The checker has completed, so take appropriate actions."""
613
392
        self.checker_callback_tag = None
614
393
        self.checker = None
615
394
        if os.WIFEXITED(condition):
616
 
            self.last_checker_status = os.WEXITSTATUS(condition)
617
 
            if self.last_checker_status == 0:
618
 
                logger.info("Checker for %(name)s succeeded",
 
395
            exitstatus = os.WEXITSTATUS(condition)
 
396
            if exitstatus == 0:
 
397
                logger.info(u"Checker for %(name)s succeeded",
619
398
                            vars(self))
620
399
                self.checked_ok()
621
400
            else:
622
 
                logger.info("Checker for %(name)s failed",
 
401
                logger.info(u"Checker for %(name)s failed",
623
402
                            vars(self))
624
403
        else:
625
 
            self.last_checker_status = -1
626
 
            logger.warning("Checker for %(name)s crashed?",
 
404
            logger.warning(u"Checker for %(name)s crashed?",
627
405
                           vars(self))
628
406
    
629
 
    def checked_ok(self, timeout=None):
 
407
    def checked_ok(self):
630
408
        """Bump up the timeout for this client.
631
409
        
632
410
        This should only be called when the client has been seen,
633
411
        alive and well.
634
412
        """
635
 
        if timeout is None:
636
 
            timeout = self.timeout
637
413
        self.last_checked_ok = datetime.datetime.utcnow()
638
 
        if self.disable_initiator_tag is not None:
639
 
            gobject.source_remove(self.disable_initiator_tag)
640
 
        if getattr(self, "enabled", False):
641
 
            self.disable_initiator_tag = (gobject.timeout_add
642
 
                                          (timedelta_to_milliseconds
643
 
                                           (timeout), self.disable))
644
 
            self.expires = datetime.datetime.utcnow() + timeout
645
 
    
646
 
    def need_approval(self):
647
 
        self.last_approval_request = datetime.datetime.utcnow()
 
414
        gobject.source_remove(self.disable_initiator_tag)
 
415
        self.disable_initiator_tag = (gobject.timeout_add
 
416
                                      (self.timeout_milliseconds(),
 
417
                                       self.disable))
648
418
    
649
419
    def start_checker(self):
650
420
        """Start a new checker subprocess if one is not running.
663
433
        # If a checker exists, make sure it is not a zombie
664
434
        try:
665
435
            pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
666
 
        except (AttributeError, OSError) as error:
 
436
        except (AttributeError, OSError), error:
667
437
            if (isinstance(error, OSError)
668
438
                and error.errno != errno.ECHILD):
669
439
                raise error
670
440
        else:
671
441
            if pid:
672
 
                logger.warning("Checker was a zombie")
 
442
                logger.warning(u"Checker was a zombie")
673
443
                gobject.source_remove(self.checker_callback_tag)
674
444
                self.checker_callback(pid, status,
675
445
                                      self.current_checker_command)
680
450
                command = self.checker_command % self.host
681
451
            except TypeError:
682
452
                # Escape attributes for the shell
683
 
                escaped_attrs = dict(
684
 
                    (attr,
685
 
                     re.escape(unicode(str(getattr(self, attr, "")),
686
 
                                       errors=
687
 
                                       'replace')))
688
 
                    for attr in
689
 
                    self.runtime_expansions)
690
 
                
 
453
                escaped_attrs = dict((key,
 
454
                                      re.escape(unicode(str(val),
 
455
                                                        errors=
 
456
                                                        u'replace')))
 
457
                                     for key, val in
 
458
                                     vars(self).iteritems())
691
459
                try:
692
460
                    command = self.checker_command % escaped_attrs
693
 
                except TypeError as error:
694
 
                    logger.error('Could not format string "%s":'
695
 
                                 ' %s', self.checker_command, error)
 
461
                except TypeError, error:
 
462
                    logger.error(u'Could not format string "%s":'
 
463
                                 u' %s', self.checker_command, error)
696
464
                    return True # Try again later
697
465
            self.current_checker_command = command
698
466
            try:
699
 
                logger.info("Starting checker %r for %s",
 
467
                logger.info(u"Starting checker %r for %s",
700
468
                            command, self.name)
701
469
                # We don't need to redirect stdout and stderr, since
702
470
                # in normal mode, that is already done by daemon(),
704
472
                # always replaced by /dev/null.)
705
473
                self.checker = subprocess.Popen(command,
706
474
                                                close_fds=True,
707
 
                                                shell=True, cwd="/")
 
475
                                                shell=True, cwd=u"/")
708
476
                self.checker_callback_tag = (gobject.child_watch_add
709
477
                                             (self.checker.pid,
710
478
                                              self.checker_callback,
715
483
                if pid:
716
484
                    gobject.source_remove(self.checker_callback_tag)
717
485
                    self.checker_callback(pid, status, command)
718
 
            except OSError as error:
719
 
                logger.error("Failed to start subprocess: %s",
 
486
            except OSError, error:
 
487
                logger.error(u"Failed to start subprocess: %s",
720
488
                             error)
721
489
        # Re-run this periodically if run by gobject.timeout_add
722
490
        return True
726
494
        if self.checker_callback_tag:
727
495
            gobject.source_remove(self.checker_callback_tag)
728
496
            self.checker_callback_tag = None
729
 
        if getattr(self, "checker", None) is None:
 
497
        if getattr(self, u"checker", None) is None:
730
498
            return
731
 
        logger.debug("Stopping checker for %(name)s", vars(self))
 
499
        logger.debug(u"Stopping checker for %(name)s", vars(self))
732
500
        try:
733
501
            os.kill(self.checker.pid, signal.SIGTERM)
734
502
            #time.sleep(0.5)
735
503
            #if self.checker.poll() is None:
736
504
            #    os.kill(self.checker.pid, signal.SIGKILL)
737
 
        except OSError as error:
 
505
        except OSError, error:
738
506
            if error.errno != errno.ESRCH: # No such process
739
507
                raise
740
508
        self.checker = None
741
509
 
742
 
 
743
 
def dbus_service_property(dbus_interface, signature="v",
744
 
                          access="readwrite", byte_arrays=False):
 
510
def dbus_service_property(dbus_interface, signature=u"v",
 
511
                          access=u"readwrite", byte_arrays=False):
745
512
    """Decorators for marking methods of a DBusObjectWithProperties to
746
513
    become properties on the D-Bus.
747
514
    
754
521
    """
755
522
    # Encoding deeply encoded byte arrays is not supported yet by the
756
523
    # "Set" method, so we fail early here:
757
 
    if byte_arrays and signature != "ay":
758
 
        raise ValueError("Byte arrays not supported for non-'ay'"
759
 
                         " signature %r" % signature)
 
524
    if byte_arrays and signature != u"ay":
 
525
        raise ValueError(u"Byte arrays not supported for non-'ay'"
 
526
                         u" signature %r" % signature)
760
527
    def decorator(func):
761
528
        func._dbus_is_property = True
762
529
        func._dbus_interface = dbus_interface
763
530
        func._dbus_signature = signature
764
531
        func._dbus_access = access
765
532
        func._dbus_name = func.__name__
766
 
        if func._dbus_name.endswith("_dbus_property"):
 
533
        if func._dbus_name.endswith(u"_dbus_property"):
767
534
            func._dbus_name = func._dbus_name[:-14]
768
 
        func._dbus_get_args_options = {'byte_arrays': byte_arrays }
 
535
        func._dbus_get_args_options = {u'byte_arrays': byte_arrays }
769
536
        return func
770
537
    return decorator
771
538
 
791
558
 
792
559
class DBusObjectWithProperties(dbus.service.Object):
793
560
    """A D-Bus object with properties.
794
 
    
 
561
 
795
562
    Classes inheriting from this can use the dbus_service_property
796
563
    decorator to expose methods as D-Bus properties.  It exposes the
797
564
    standard Get(), Set(), and GetAll() methods on the D-Bus.
799
566
    
800
567
    @staticmethod
801
568
    def _is_dbus_property(obj):
802
 
        return getattr(obj, "_dbus_is_property", False)
 
569
        return getattr(obj, u"_dbus_is_property", False)
803
570
    
804
571
    def _get_all_dbus_properties(self):
805
572
        """Returns a generator of (name, attribute) pairs
806
573
        """
807
 
        return ((prop.__get__(self)._dbus_name, prop.__get__(self))
808
 
                for cls in self.__class__.__mro__
 
574
        return ((prop._dbus_name, prop)
809
575
                for name, prop in
810
 
                inspect.getmembers(cls, self._is_dbus_property))
 
576
                inspect.getmembers(self, self._is_dbus_property))
811
577
    
812
578
    def _get_dbus_property(self, interface_name, property_name):
813
579
        """Returns a bound method if one exists which is a D-Bus
814
580
        property with the specified name and interface.
815
581
        """
816
 
        for cls in  self.__class__.__mro__:
817
 
            for name, value in (inspect.getmembers
818
 
                                (cls, self._is_dbus_property)):
819
 
                if (value._dbus_name == property_name
820
 
                    and value._dbus_interface == interface_name):
821
 
                    return value.__get__(self)
822
 
        
 
582
        for name in (property_name,
 
583
                     property_name + u"_dbus_property"):
 
584
            prop = getattr(self, name, None)
 
585
            if (prop is None
 
586
                or not self._is_dbus_property(prop)
 
587
                or prop._dbus_name != property_name
 
588
                or (interface_name and prop._dbus_interface
 
589
                    and interface_name != prop._dbus_interface)):
 
590
                continue
 
591
            return prop
823
592
        # No such property
824
 
        raise DBusPropertyNotFound(self.dbus_object_path + ":"
825
 
                                   + interface_name + "."
 
593
        raise DBusPropertyNotFound(self.dbus_object_path + u":"
 
594
                                   + interface_name + u"."
826
595
                                   + property_name)
827
596
    
828
 
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
829
 
                         out_signature="v")
 
597
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ss",
 
598
                         out_signature=u"v")
830
599
    def Get(self, interface_name, property_name):
831
600
        """Standard D-Bus property Get() method, see D-Bus standard.
832
601
        """
833
602
        prop = self._get_dbus_property(interface_name, property_name)
834
 
        if prop._dbus_access == "write":
 
603
        if prop._dbus_access == u"write":
835
604
            raise DBusPropertyAccessException(property_name)
836
605
        value = prop()
837
 
        if not hasattr(value, "variant_level"):
 
606
        if not hasattr(value, u"variant_level"):
838
607
            return value
839
608
        return type(value)(value, variant_level=value.variant_level+1)
840
609
    
841
 
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ssv")
 
610
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"ssv")
842
611
    def Set(self, interface_name, property_name, value):
843
612
        """Standard D-Bus property Set() method, see D-Bus standard.
844
613
        """
845
614
        prop = self._get_dbus_property(interface_name, property_name)
846
 
        if prop._dbus_access == "read":
 
615
        if prop._dbus_access == u"read":
847
616
            raise DBusPropertyAccessException(property_name)
848
 
        if prop._dbus_get_args_options["byte_arrays"]:
 
617
        if prop._dbus_get_args_options[u"byte_arrays"]:
849
618
            # The byte_arrays option is not supported yet on
850
619
            # signatures other than "ay".
851
 
            if prop._dbus_signature != "ay":
 
620
            if prop._dbus_signature != u"ay":
852
621
                raise ValueError
853
 
            value = dbus.ByteArray(b''.join(chr(byte)
854
 
                                            for byte in value))
 
622
            value = dbus.ByteArray(''.join(unichr(byte)
 
623
                                           for byte in value))
855
624
        prop(value)
856
625
    
857
 
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
858
 
                         out_signature="a{sv}")
 
626
    @dbus.service.method(dbus.PROPERTIES_IFACE, in_signature=u"s",
 
627
                         out_signature=u"a{sv}")
859
628
    def GetAll(self, interface_name):
860
629
        """Standard D-Bus property GetAll() method, see D-Bus
861
630
        standard.
862
 
        
 
631
 
863
632
        Note: Will not include properties with access="write".
864
633
        """
865
 
        properties = {}
 
634
        all = {}
866
635
        for name, prop in self._get_all_dbus_properties():
867
636
            if (interface_name
868
637
                and interface_name != prop._dbus_interface):
869
638
                # Interface non-empty but did not match
870
639
                continue
871
640
            # Ignore write-only properties
872
 
            if prop._dbus_access == "write":
 
641
            if prop._dbus_access == u"write":
873
642
                continue
874
643
            value = prop()
875
 
            if not hasattr(value, "variant_level"):
876
 
                properties[name] = value
 
644
            if not hasattr(value, u"variant_level"):
 
645
                all[name] = value
877
646
                continue
878
 
            properties[name] = type(value)(value, variant_level=
879
 
                                           value.variant_level+1)
880
 
        return dbus.Dictionary(properties, signature="sv")
 
647
            all[name] = type(value)(value, variant_level=
 
648
                                    value.variant_level+1)
 
649
        return dbus.Dictionary(all, signature=u"sv")
881
650
    
882
651
    @dbus.service.method(dbus.INTROSPECTABLE_IFACE,
883
 
                         out_signature="s",
 
652
                         out_signature=u"s",
884
653
                         path_keyword='object_path',
885
654
                         connection_keyword='connection')
886
655
    def Introspect(self, object_path, connection):
891
660
        try:
892
661
            document = xml.dom.minidom.parseString(xmlstring)
893
662
            def make_tag(document, name, prop):
894
 
                e = document.createElement("property")
895
 
                e.setAttribute("name", name)
896
 
                e.setAttribute("type", prop._dbus_signature)
897
 
                e.setAttribute("access", prop._dbus_access)
 
663
                e = document.createElement(u"property")
 
664
                e.setAttribute(u"name", name)
 
665
                e.setAttribute(u"type", prop._dbus_signature)
 
666
                e.setAttribute(u"access", prop._dbus_access)
898
667
                return e
899
 
            for if_tag in document.getElementsByTagName("interface"):
 
668
            for if_tag in document.getElementsByTagName(u"interface"):
900
669
                for tag in (make_tag(document, name, prop)
901
670
                            for name, prop
902
671
                            in self._get_all_dbus_properties()
903
672
                            if prop._dbus_interface
904
 
                            == if_tag.getAttribute("name")):
 
673
                            == if_tag.getAttribute(u"name")):
905
674
                    if_tag.appendChild(tag)
906
675
                # Add the names to the return values for the
907
676
                # "org.freedesktop.DBus.Properties" methods
908
 
                if (if_tag.getAttribute("name")
909
 
                    == "org.freedesktop.DBus.Properties"):
910
 
                    for cn in if_tag.getElementsByTagName("method"):
911
 
                        if cn.getAttribute("name") == "Get":
912
 
                            for arg in cn.getElementsByTagName("arg"):
913
 
                                if (arg.getAttribute("direction")
914
 
                                    == "out"):
915
 
                                    arg.setAttribute("name", "value")
916
 
                        elif cn.getAttribute("name") == "GetAll":
917
 
                            for arg in cn.getElementsByTagName("arg"):
918
 
                                if (arg.getAttribute("direction")
919
 
                                    == "out"):
920
 
                                    arg.setAttribute("name", "props")
921
 
            xmlstring = document.toxml("utf-8")
 
677
                if (if_tag.getAttribute(u"name")
 
678
                    == u"org.freedesktop.DBus.Properties"):
 
679
                    for cn in if_tag.getElementsByTagName(u"method"):
 
680
                        if cn.getAttribute(u"name") == u"Get":
 
681
                            for arg in cn.getElementsByTagName(u"arg"):
 
682
                                if (arg.getAttribute(u"direction")
 
683
                                    == u"out"):
 
684
                                    arg.setAttribute(u"name", u"value")
 
685
                        elif cn.getAttribute(u"name") == u"GetAll":
 
686
                            for arg in cn.getElementsByTagName(u"arg"):
 
687
                                if (arg.getAttribute(u"direction")
 
688
                                    == u"out"):
 
689
                                    arg.setAttribute(u"name", u"props")
 
690
            xmlstring = document.toxml(u"utf-8")
922
691
            document.unlink()
923
692
        except (AttributeError, xml.dom.DOMException,
924
 
                xml.parsers.expat.ExpatError) as error:
925
 
            logger.error("Failed to override Introspection method",
 
693
                xml.parsers.expat.ExpatError), error:
 
694
            logger.error(u"Failed to override Introspection method",
926
695
                         error)
927
696
        return xmlstring
928
697
 
929
698
 
930
 
def datetime_to_dbus (dt, variant_level=0):
931
 
    """Convert a UTC datetime.datetime() to a D-Bus type."""
932
 
    if dt is None:
933
 
        return dbus.String("", variant_level = variant_level)
934
 
    return dbus.String(dt.isoformat(),
935
 
                       variant_level=variant_level)
936
 
 
937
 
 
938
 
class AlternateDBusNamesMetaclass(DBusObjectWithProperties
939
 
                                  .__metaclass__):
940
 
    """Applied to an empty subclass of a D-Bus object, this metaclass
941
 
    will add additional D-Bus attributes matching a certain pattern.
942
 
    """
943
 
    def __new__(mcs, name, bases, attr):
944
 
        # Go through all the base classes which could have D-Bus
945
 
        # methods, signals, or properties in them
946
 
        for base in (b for b in bases
947
 
                     if issubclass(b, dbus.service.Object)):
948
 
            # Go though all attributes of the base class
949
 
            for attrname, attribute in inspect.getmembers(base):
950
 
                # Ignore non-D-Bus attributes, and D-Bus attributes
951
 
                # with the wrong interface name
952
 
                if (not hasattr(attribute, "_dbus_interface")
953
 
                    or not attribute._dbus_interface
954
 
                    .startswith("se.recompile.Mandos")):
955
 
                    continue
956
 
                # Create an alternate D-Bus interface name based on
957
 
                # the current name
958
 
                alt_interface = (attribute._dbus_interface
959
 
                                 .replace("se.recompile.Mandos",
960
 
                                          "se.bsnet.fukt.Mandos"))
961
 
                # Is this a D-Bus signal?
962
 
                if getattr(attribute, "_dbus_is_signal", False):
963
 
                    # Extract the original non-method function by
964
 
                    # black magic
965
 
                    nonmethod_func = (dict(
966
 
                            zip(attribute.func_code.co_freevars,
967
 
                                attribute.__closure__))["func"]
968
 
                                      .cell_contents)
969
 
                    # Create a new, but exactly alike, function
970
 
                    # object, and decorate it to be a new D-Bus signal
971
 
                    # with the alternate D-Bus interface name
972
 
                    new_function = (dbus.service.signal
973
 
                                    (alt_interface,
974
 
                                     attribute._dbus_signature)
975
 
                                    (types.FunctionType(
976
 
                                nonmethod_func.func_code,
977
 
                                nonmethod_func.func_globals,
978
 
                                nonmethod_func.func_name,
979
 
                                nonmethod_func.func_defaults,
980
 
                                nonmethod_func.func_closure)))
981
 
                    # Define a creator of a function to call both the
982
 
                    # old and new functions, so both the old and new
983
 
                    # signals gets sent when the function is called
984
 
                    def fixscope(func1, func2):
985
 
                        """This function is a scope container to pass
986
 
                        func1 and func2 to the "call_both" function
987
 
                        outside of its arguments"""
988
 
                        def call_both(*args, **kwargs):
989
 
                            """This function will emit two D-Bus
990
 
                            signals by calling func1 and func2"""
991
 
                            func1(*args, **kwargs)
992
 
                            func2(*args, **kwargs)
993
 
                        return call_both
994
 
                    # Create the "call_both" function and add it to
995
 
                    # the class
996
 
                    attr[attrname] = fixscope(attribute,
997
 
                                              new_function)
998
 
                # Is this a D-Bus method?
999
 
                elif getattr(attribute, "_dbus_is_method", False):
1000
 
                    # Create a new, but exactly alike, function
1001
 
                    # object.  Decorate it to be a new D-Bus method
1002
 
                    # with the alternate D-Bus interface name.  Add it
1003
 
                    # to the class.
1004
 
                    attr[attrname] = (dbus.service.method
1005
 
                                      (alt_interface,
1006
 
                                       attribute._dbus_in_signature,
1007
 
                                       attribute._dbus_out_signature)
1008
 
                                      (types.FunctionType
1009
 
                                       (attribute.func_code,
1010
 
                                        attribute.func_globals,
1011
 
                                        attribute.func_name,
1012
 
                                        attribute.func_defaults,
1013
 
                                        attribute.func_closure)))
1014
 
                # Is this a D-Bus property?
1015
 
                elif getattr(attribute, "_dbus_is_property", False):
1016
 
                    # Create a new, but exactly alike, function
1017
 
                    # object, and decorate it to be a new D-Bus
1018
 
                    # property with the alternate D-Bus interface
1019
 
                    # name.  Add it to the class.
1020
 
                    attr[attrname] = (dbus_service_property
1021
 
                                      (alt_interface,
1022
 
                                       attribute._dbus_signature,
1023
 
                                       attribute._dbus_access,
1024
 
                                       attribute
1025
 
                                       ._dbus_get_args_options
1026
 
                                       ["byte_arrays"])
1027
 
                                      (types.FunctionType
1028
 
                                       (attribute.func_code,
1029
 
                                        attribute.func_globals,
1030
 
                                        attribute.func_name,
1031
 
                                        attribute.func_defaults,
1032
 
                                        attribute.func_closure)))
1033
 
        return type.__new__(mcs, name, bases, attr)
1034
 
 
1035
 
 
1036
699
class ClientDBus(Client, DBusObjectWithProperties):
1037
700
    """A Client class using D-Bus
1038
701
    
1040
703
    dbus_object_path: dbus.ObjectPath
1041
704
    bus: dbus.SystemBus()
1042
705
    """
1043
 
    
1044
 
    runtime_expansions = (Client.runtime_expansions
1045
 
                          + ("dbus_object_path",))
1046
 
    
1047
706
    # dbus.service.Object doesn't use super(), so we can't either.
1048
707
    
1049
708
    def __init__(self, bus = None, *args, **kwargs):
 
709
        self._approvals_pending = 0
1050
710
        self.bus = bus
1051
711
        Client.__init__(self, *args, **kwargs)
1052
 
        self._approvals_pending = 0
1053
 
        
1054
 
        self._approvals_pending = 0
1055
712
        # Only now, when this client is initialized, can it show up on
1056
713
        # the D-Bus
1057
 
        client_object_name = unicode(self.name).translate(
1058
 
            {ord("."): ord("_"),
1059
 
             ord("-"): ord("_")})
1060
714
        self.dbus_object_path = (dbus.ObjectPath
1061
 
                                 ("/clients/" + client_object_name))
 
715
                                 (u"/clients/"
 
716
                                  + self.name.replace(u".", u"_")))
1062
717
        DBusObjectWithProperties.__init__(self, self.bus,
1063
718
                                          self.dbus_object_path)
1064
719
        
1065
 
    def notifychangeproperty(transform_func,
1066
 
                             dbus_name, type_func=lambda x: x,
1067
 
                             variant_level=1):
1068
 
        """ Modify a variable so that it's a property which announces
1069
 
        its changes to DBus.
1070
 
        
1071
 
        transform_fun: Function that takes a value and a variant_level
1072
 
                       and transforms it to a D-Bus type.
1073
 
        dbus_name: D-Bus name of the variable
1074
 
        type_func: Function that transform the value before sending it
1075
 
                   to the D-Bus.  Default: no transform
1076
 
        variant_level: D-Bus variant level.  Default: 1
1077
 
        """
1078
 
        attrname = "_{0}".format(dbus_name)
1079
 
        def setter(self, value):
1080
 
            if hasattr(self, "dbus_object_path"):
1081
 
                if (not hasattr(self, attrname) or
1082
 
                    type_func(getattr(self, attrname, None))
1083
 
                    != type_func(value)):
1084
 
                    dbus_value = transform_func(type_func(value),
1085
 
                                                variant_level
1086
 
                                                =variant_level)
1087
 
                    self.PropertyChanged(dbus.String(dbus_name),
1088
 
                                         dbus_value)
1089
 
            setattr(self, attrname, value)
1090
 
        
1091
 
        return property(lambda self: getattr(self, attrname), setter)
1092
 
    
1093
 
    
1094
 
    expires = notifychangeproperty(datetime_to_dbus, "Expires")
1095
 
    approvals_pending = notifychangeproperty(dbus.Boolean,
1096
 
                                             "ApprovalPending",
1097
 
                                             type_func = bool)
1098
 
    enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1099
 
    last_enabled = notifychangeproperty(datetime_to_dbus,
1100
 
                                        "LastEnabled")
1101
 
    checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1102
 
                                   type_func = lambda checker:
1103
 
                                       checker is not None)
1104
 
    last_checked_ok = notifychangeproperty(datetime_to_dbus,
1105
 
                                           "LastCheckedOK")
1106
 
    last_approval_request = notifychangeproperty(
1107
 
        datetime_to_dbus, "LastApprovalRequest")
1108
 
    approved_by_default = notifychangeproperty(dbus.Boolean,
1109
 
                                               "ApprovedByDefault")
1110
 
    approval_delay = notifychangeproperty(dbus.UInt64,
1111
 
                                          "ApprovalDelay",
1112
 
                                          type_func =
1113
 
                                          timedelta_to_milliseconds)
1114
 
    approval_duration = notifychangeproperty(
1115
 
        dbus.UInt64, "ApprovalDuration",
1116
 
        type_func = timedelta_to_milliseconds)
1117
 
    host = notifychangeproperty(dbus.String, "Host")
1118
 
    timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1119
 
                                   type_func =
1120
 
                                   timedelta_to_milliseconds)
1121
 
    extended_timeout = notifychangeproperty(
1122
 
        dbus.UInt64, "ExtendedTimeout",
1123
 
        type_func = timedelta_to_milliseconds)
1124
 
    interval = notifychangeproperty(dbus.UInt64,
1125
 
                                    "Interval",
1126
 
                                    type_func =
1127
 
                                    timedelta_to_milliseconds)
1128
 
    checker_command = notifychangeproperty(dbus.String, "Checker")
1129
 
    
1130
 
    del notifychangeproperty
 
720
    def _get_approvals_pending(self):
 
721
        return self._approvals_pending
 
722
    def _set_approvals_pending(self, value):
 
723
        old_value = self._approvals_pending
 
724
        self._approvals_pending = value
 
725
        bval = bool(value)
 
726
        if (hasattr(self, "dbus_object_path")
 
727
            and bval is not bool(old_value)):
 
728
            dbus_bool = dbus.Boolean(bval, variant_level=1)
 
729
            self.PropertyChanged(dbus.String(u"ApprovalPending"),
 
730
                                 dbus_bool)
 
731
 
 
732
    approvals_pending = property(_get_approvals_pending,
 
733
                                 _set_approvals_pending)
 
734
    del _get_approvals_pending, _set_approvals_pending
 
735
    
 
736
    @staticmethod
 
737
    def _datetime_to_dbus(dt, variant_level=0):
 
738
        """Convert a UTC datetime.datetime() to a D-Bus type."""
 
739
        return dbus.String(dt.isoformat(),
 
740
                           variant_level=variant_level)
 
741
    
 
742
    def enable(self):
 
743
        oldstate = getattr(self, u"enabled", False)
 
744
        r = Client.enable(self)
 
745
        if oldstate != self.enabled:
 
746
            # Emit D-Bus signals
 
747
            self.PropertyChanged(dbus.String(u"Enabled"),
 
748
                                 dbus.Boolean(True, variant_level=1))
 
749
            self.PropertyChanged(
 
750
                dbus.String(u"LastEnabled"),
 
751
                self._datetime_to_dbus(self.last_enabled,
 
752
                                       variant_level=1))
 
753
        return r
 
754
    
 
755
    def disable(self, quiet = False):
 
756
        oldstate = getattr(self, u"enabled", False)
 
757
        r = Client.disable(self, quiet=quiet)
 
758
        if not quiet and oldstate != self.enabled:
 
759
            # Emit D-Bus signal
 
760
            self.PropertyChanged(dbus.String(u"Enabled"),
 
761
                                 dbus.Boolean(False, variant_level=1))
 
762
        return r
1131
763
    
1132
764
    def __del__(self, *args, **kwargs):
1133
765
        try:
1134
766
            self.remove_from_connection()
1135
767
        except LookupError:
1136
768
            pass
1137
 
        if hasattr(DBusObjectWithProperties, "__del__"):
 
769
        if hasattr(DBusObjectWithProperties, u"__del__"):
1138
770
            DBusObjectWithProperties.__del__(self, *args, **kwargs)
1139
771
        Client.__del__(self, *args, **kwargs)
1140
772
    
1142
774
                         *args, **kwargs):
1143
775
        self.checker_callback_tag = None
1144
776
        self.checker = None
 
777
        # Emit D-Bus signal
 
778
        self.PropertyChanged(dbus.String(u"CheckerRunning"),
 
779
                             dbus.Boolean(False, variant_level=1))
1145
780
        if os.WIFEXITED(condition):
1146
781
            exitstatus = os.WEXITSTATUS(condition)
1147
782
            # Emit D-Bus signal
1157
792
        return Client.checker_callback(self, pid, condition, command,
1158
793
                                       *args, **kwargs)
1159
794
    
 
795
    def checked_ok(self, *args, **kwargs):
 
796
        r = Client.checked_ok(self, *args, **kwargs)
 
797
        # Emit D-Bus signal
 
798
        self.PropertyChanged(
 
799
            dbus.String(u"LastCheckedOK"),
 
800
            (self._datetime_to_dbus(self.last_checked_ok,
 
801
                                    variant_level=1)))
 
802
        return r
 
803
    
1160
804
    def start_checker(self, *args, **kwargs):
1161
805
        old_checker = self.checker
1162
806
        if self.checker is not None:
1169
813
            and old_checker_pid != self.checker.pid):
1170
814
            # Emit D-Bus signal
1171
815
            self.CheckerStarted(self.current_checker_command)
 
816
            self.PropertyChanged(
 
817
                dbus.String(u"CheckerRunning"),
 
818
                dbus.Boolean(True, variant_level=1))
1172
819
        return r
1173
820
    
 
821
    def stop_checker(self, *args, **kwargs):
 
822
        old_checker = getattr(self, u"checker", None)
 
823
        r = Client.stop_checker(self, *args, **kwargs)
 
824
        if (old_checker is not None
 
825
            and getattr(self, u"checker", None) is None):
 
826
            self.PropertyChanged(dbus.String(u"CheckerRunning"),
 
827
                                 dbus.Boolean(False, variant_level=1))
 
828
        return r
 
829
 
1174
830
    def _reset_approved(self):
1175
 
        self.approved = None
 
831
        self._approved = None
1176
832
        return False
1177
833
    
1178
834
    def approve(self, value=True):
1179
835
        self.send_changedstate()
1180
 
        self.approved = value
1181
 
        gobject.timeout_add(timedelta_to_milliseconds
 
836
        self._approved = value
 
837
        gobject.timeout_add(self._timedelta_to_milliseconds
1182
838
                            (self.approval_duration),
1183
839
                            self._reset_approved)
1184
840
    
1185
841
    
1186
842
    ## D-Bus methods, signals & properties
1187
 
    _interface = "se.recompile.Mandos.Client"
 
843
    _interface = u"se.bsnet.fukt.Mandos.Client"
1188
844
    
1189
845
    ## Signals
1190
846
    
1191
847
    # CheckerCompleted - signal
1192
 
    @dbus.service.signal(_interface, signature="nxs")
 
848
    @dbus.service.signal(_interface, signature=u"nxs")
1193
849
    def CheckerCompleted(self, exitcode, waitstatus, command):
1194
850
        "D-Bus signal"
1195
851
        pass
1196
852
    
1197
853
    # CheckerStarted - signal
1198
 
    @dbus.service.signal(_interface, signature="s")
 
854
    @dbus.service.signal(_interface, signature=u"s")
1199
855
    def CheckerStarted(self, command):
1200
856
        "D-Bus signal"
1201
857
        pass
1202
858
    
1203
859
    # PropertyChanged - signal
1204
 
    @dbus.service.signal(_interface, signature="sv")
 
860
    @dbus.service.signal(_interface, signature=u"sv")
1205
861
    def PropertyChanged(self, property, value):
1206
862
        "D-Bus signal"
1207
863
        pass
1216
872
        pass
1217
873
    
1218
874
    # Rejected - signal
1219
 
    @dbus.service.signal(_interface, signature="s")
 
875
    @dbus.service.signal(_interface, signature=u"s")
1220
876
    def Rejected(self, reason):
1221
877
        "D-Bus signal"
1222
878
        pass
1223
879
    
1224
880
    # NeedApproval - signal
1225
 
    @dbus.service.signal(_interface, signature="tb")
 
881
    @dbus.service.signal(_interface, signature=u"tb")
1226
882
    def NeedApproval(self, timeout, default):
1227
883
        "D-Bus signal"
1228
 
        return self.need_approval()
1229
 
    
1230
 
    # NeRwequest - signal
1231
 
    @dbus.service.signal(_interface, signature="s")
1232
 
    def NewRequest(self, ip):
1233
 
        """D-Bus signal
1234
 
        Is sent after a client request a password.
1235
 
        """
1236
884
        pass
1237
885
    
1238
886
    ## Methods
1239
 
    
 
887
 
1240
888
    # Approve - method
1241
 
    @dbus.service.method(_interface, in_signature="b")
 
889
    @dbus.service.method(_interface, in_signature=u"b")
1242
890
    def Approve(self, value):
1243
891
        self.approve(value)
1244
 
    
 
892
 
1245
893
    # CheckedOK - method
1246
894
    @dbus.service.method(_interface)
1247
895
    def CheckedOK(self):
1248
 
        self.checked_ok()
 
896
        return self.checked_ok()
1249
897
    
1250
898
    # Enable - method
1251
899
    @dbus.service.method(_interface)
1273
921
    ## Properties
1274
922
    
1275
923
    # ApprovalPending - property
1276
 
    @dbus_service_property(_interface, signature="b", access="read")
 
924
    @dbus_service_property(_interface, signature=u"b", access=u"read")
1277
925
    def ApprovalPending_dbus_property(self):
1278
926
        return dbus.Boolean(bool(self.approvals_pending))
1279
927
    
1280
928
    # ApprovedByDefault - property
1281
 
    @dbus_service_property(_interface, signature="b",
1282
 
                           access="readwrite")
 
929
    @dbus_service_property(_interface, signature=u"b",
 
930
                           access=u"readwrite")
1283
931
    def ApprovedByDefault_dbus_property(self, value=None):
1284
932
        if value is None:       # get
1285
933
            return dbus.Boolean(self.approved_by_default)
1286
934
        self.approved_by_default = bool(value)
 
935
        # Emit D-Bus signal
 
936
        self.PropertyChanged(dbus.String(u"ApprovedByDefault"),
 
937
                             dbus.Boolean(value, variant_level=1))
1287
938
    
1288
939
    # ApprovalDelay - property
1289
 
    @dbus_service_property(_interface, signature="t",
1290
 
                           access="readwrite")
 
940
    @dbus_service_property(_interface, signature=u"t",
 
941
                           access=u"readwrite")
1291
942
    def ApprovalDelay_dbus_property(self, value=None):
1292
943
        if value is None:       # get
1293
944
            return dbus.UInt64(self.approval_delay_milliseconds())
1294
945
        self.approval_delay = datetime.timedelta(0, 0, 0, value)
 
946
        # Emit D-Bus signal
 
947
        self.PropertyChanged(dbus.String(u"ApprovalDelay"),
 
948
                             dbus.UInt64(value, variant_level=1))
1295
949
    
1296
950
    # ApprovalDuration - property
1297
 
    @dbus_service_property(_interface, signature="t",
1298
 
                           access="readwrite")
 
951
    @dbus_service_property(_interface, signature=u"t",
 
952
                           access=u"readwrite")
1299
953
    def ApprovalDuration_dbus_property(self, value=None):
1300
954
        if value is None:       # get
1301
 
            return dbus.UInt64(timedelta_to_milliseconds(
 
955
            return dbus.UInt64(self._timedelta_to_milliseconds(
1302
956
                    self.approval_duration))
1303
957
        self.approval_duration = datetime.timedelta(0, 0, 0, value)
 
958
        # Emit D-Bus signal
 
959
        self.PropertyChanged(dbus.String(u"ApprovalDuration"),
 
960
                             dbus.UInt64(value, variant_level=1))
1304
961
    
1305
962
    # Name - property
1306
 
    @dbus_service_property(_interface, signature="s", access="read")
 
963
    @dbus_service_property(_interface, signature=u"s", access=u"read")
1307
964
    def Name_dbus_property(self):
1308
965
        return dbus.String(self.name)
1309
966
    
1310
967
    # Fingerprint - property
1311
 
    @dbus_service_property(_interface, signature="s", access="read")
 
968
    @dbus_service_property(_interface, signature=u"s", access=u"read")
1312
969
    def Fingerprint_dbus_property(self):
1313
970
        return dbus.String(self.fingerprint)
1314
971
    
1315
972
    # Host - property
1316
 
    @dbus_service_property(_interface, signature="s",
1317
 
                           access="readwrite")
 
973
    @dbus_service_property(_interface, signature=u"s",
 
974
                           access=u"readwrite")
1318
975
    def Host_dbus_property(self, value=None):
1319
976
        if value is None:       # get
1320
977
            return dbus.String(self.host)
1321
 
        self.host = unicode(value)
 
978
        self.host = value
 
979
        # Emit D-Bus signal
 
980
        self.PropertyChanged(dbus.String(u"Host"),
 
981
                             dbus.String(value, variant_level=1))
1322
982
    
1323
983
    # Created - property
1324
 
    @dbus_service_property(_interface, signature="s", access="read")
 
984
    @dbus_service_property(_interface, signature=u"s", access=u"read")
1325
985
    def Created_dbus_property(self):
1326
 
        return datetime_to_dbus(self.created)
 
986
        return dbus.String(self._datetime_to_dbus(self.created))
1327
987
    
1328
988
    # LastEnabled - property
1329
 
    @dbus_service_property(_interface, signature="s", access="read")
 
989
    @dbus_service_property(_interface, signature=u"s", access=u"read")
1330
990
    def LastEnabled_dbus_property(self):
1331
 
        return datetime_to_dbus(self.last_enabled)
 
991
        if self.last_enabled is None:
 
992
            return dbus.String(u"")
 
993
        return dbus.String(self._datetime_to_dbus(self.last_enabled))
1332
994
    
1333
995
    # Enabled - property
1334
 
    @dbus_service_property(_interface, signature="b",
1335
 
                           access="readwrite")
 
996
    @dbus_service_property(_interface, signature=u"b",
 
997
                           access=u"readwrite")
1336
998
    def Enabled_dbus_property(self, value=None):
1337
999
        if value is None:       # get
1338
1000
            return dbus.Boolean(self.enabled)
1342
1004
            self.disable()
1343
1005
    
1344
1006
    # LastCheckedOK - property
1345
 
    @dbus_service_property(_interface, signature="s",
1346
 
                           access="readwrite")
 
1007
    @dbus_service_property(_interface, signature=u"s",
 
1008
                           access=u"readwrite")
1347
1009
    def LastCheckedOK_dbus_property(self, value=None):
1348
1010
        if value is not None:
1349
1011
            self.checked_ok()
1350
1012
            return
1351
 
        return datetime_to_dbus(self.last_checked_ok)
1352
 
    
1353
 
    # Expires - property
1354
 
    @dbus_service_property(_interface, signature="s", access="read")
1355
 
    def Expires_dbus_property(self):
1356
 
        return datetime_to_dbus(self.expires)
1357
 
    
1358
 
    # LastApprovalRequest - property
1359
 
    @dbus_service_property(_interface, signature="s", access="read")
1360
 
    def LastApprovalRequest_dbus_property(self):
1361
 
        return datetime_to_dbus(self.last_approval_request)
 
1013
        if self.last_checked_ok is None:
 
1014
            return dbus.String(u"")
 
1015
        return dbus.String(self._datetime_to_dbus(self
 
1016
                                                  .last_checked_ok))
1362
1017
    
1363
1018
    # Timeout - property
1364
 
    @dbus_service_property(_interface, signature="t",
1365
 
                           access="readwrite")
 
1019
    @dbus_service_property(_interface, signature=u"t",
 
1020
                           access=u"readwrite")
1366
1021
    def Timeout_dbus_property(self, value=None):
1367
1022
        if value is None:       # get
1368
1023
            return dbus.UInt64(self.timeout_milliseconds())
1369
1024
        self.timeout = datetime.timedelta(0, 0, 0, value)
 
1025
        # Emit D-Bus signal
 
1026
        self.PropertyChanged(dbus.String(u"Timeout"),
 
1027
                             dbus.UInt64(value, variant_level=1))
 
1028
        if getattr(self, u"disable_initiator_tag", None) is None:
 
1029
            return
1370
1030
        # Reschedule timeout
1371
 
        if self.enabled:
1372
 
            now = datetime.datetime.utcnow()
1373
 
            time_to_die = timedelta_to_milliseconds(
1374
 
                (self.last_checked_ok + self.timeout) - now)
1375
 
            if time_to_die <= 0:
1376
 
                # The timeout has passed
1377
 
                self.disable()
1378
 
            else:
1379
 
                self.expires = (now +
1380
 
                                datetime.timedelta(milliseconds =
1381
 
                                                   time_to_die))
1382
 
                if (getattr(self, "disable_initiator_tag", None)
1383
 
                    is None):
1384
 
                    return
1385
 
                gobject.source_remove(self.disable_initiator_tag)
1386
 
                self.disable_initiator_tag = (gobject.timeout_add
1387
 
                                              (time_to_die,
1388
 
                                               self.disable))
1389
 
    
1390
 
    # ExtendedTimeout - property
1391
 
    @dbus_service_property(_interface, signature="t",
1392
 
                           access="readwrite")
1393
 
    def ExtendedTimeout_dbus_property(self, value=None):
1394
 
        if value is None:       # get
1395
 
            return dbus.UInt64(self.extended_timeout_milliseconds())
1396
 
        self.extended_timeout = datetime.timedelta(0, 0, 0, value)
 
1031
        gobject.source_remove(self.disable_initiator_tag)
 
1032
        self.disable_initiator_tag = None
 
1033
        time_to_die = (self.
 
1034
                       _timedelta_to_milliseconds((self
 
1035
                                                   .last_checked_ok
 
1036
                                                   + self.timeout)
 
1037
                                                  - datetime.datetime
 
1038
                                                  .utcnow()))
 
1039
        if time_to_die <= 0:
 
1040
            # The timeout has passed
 
1041
            self.disable()
 
1042
        else:
 
1043
            self.disable_initiator_tag = (gobject.timeout_add
 
1044
                                          (time_to_die, self.disable))
1397
1045
    
1398
1046
    # Interval - property
1399
 
    @dbus_service_property(_interface, signature="t",
1400
 
                           access="readwrite")
 
1047
    @dbus_service_property(_interface, signature=u"t",
 
1048
                           access=u"readwrite")
1401
1049
    def Interval_dbus_property(self, value=None):
1402
1050
        if value is None:       # get
1403
1051
            return dbus.UInt64(self.interval_milliseconds())
1404
1052
        self.interval = datetime.timedelta(0, 0, 0, value)
1405
 
        if getattr(self, "checker_initiator_tag", None) is None:
 
1053
        # Emit D-Bus signal
 
1054
        self.PropertyChanged(dbus.String(u"Interval"),
 
1055
                             dbus.UInt64(value, variant_level=1))
 
1056
        if getattr(self, u"checker_initiator_tag", None) is None:
1406
1057
            return
1407
 
        if self.enabled:
1408
 
            # Reschedule checker run
1409
 
            gobject.source_remove(self.checker_initiator_tag)
1410
 
            self.checker_initiator_tag = (gobject.timeout_add
1411
 
                                          (value, self.start_checker))
1412
 
            self.start_checker()    # Start one now, too
1413
 
    
 
1058
        # Reschedule checker run
 
1059
        gobject.source_remove(self.checker_initiator_tag)
 
1060
        self.checker_initiator_tag = (gobject.timeout_add
 
1061
                                      (value, self.start_checker))
 
1062
        self.start_checker()    # Start one now, too
 
1063
 
1414
1064
    # Checker - property
1415
 
    @dbus_service_property(_interface, signature="s",
1416
 
                           access="readwrite")
 
1065
    @dbus_service_property(_interface, signature=u"s",
 
1066
                           access=u"readwrite")
1417
1067
    def Checker_dbus_property(self, value=None):
1418
1068
        if value is None:       # get
1419
1069
            return dbus.String(self.checker_command)
1420
 
        self.checker_command = unicode(value)
 
1070
        self.checker_command = value
 
1071
        # Emit D-Bus signal
 
1072
        self.PropertyChanged(dbus.String(u"Checker"),
 
1073
                             dbus.String(self.checker_command,
 
1074
                                         variant_level=1))
1421
1075
    
1422
1076
    # CheckerRunning - property
1423
 
    @dbus_service_property(_interface, signature="b",
1424
 
                           access="readwrite")
 
1077
    @dbus_service_property(_interface, signature=u"b",
 
1078
                           access=u"readwrite")
1425
1079
    def CheckerRunning_dbus_property(self, value=None):
1426
1080
        if value is None:       # get
1427
1081
            return dbus.Boolean(self.checker is not None)
1431
1085
            self.stop_checker()
1432
1086
    
1433
1087
    # ObjectPath - property
1434
 
    @dbus_service_property(_interface, signature="o", access="read")
 
1088
    @dbus_service_property(_interface, signature=u"o", access=u"read")
1435
1089
    def ObjectPath_dbus_property(self):
1436
1090
        return self.dbus_object_path # is already a dbus.ObjectPath
1437
1091
    
1438
1092
    # Secret = property
1439
 
    @dbus_service_property(_interface, signature="ay",
1440
 
                           access="write", byte_arrays=True)
 
1093
    @dbus_service_property(_interface, signature=u"ay",
 
1094
                           access=u"write", byte_arrays=True)
1441
1095
    def Secret_dbus_property(self, value):
1442
1096
        self.secret = str(value)
1443
1097
    
1450
1104
        self._pipe.send(('init', fpr, address))
1451
1105
        if not self._pipe.recv():
1452
1106
            raise KeyError()
1453
 
    
 
1107
 
1454
1108
    def __getattribute__(self, name):
1455
 
        if name == '_pipe':
 
1109
        if(name == '_pipe'):
1456
1110
            return super(ProxyClient, self).__getattribute__(name)
1457
1111
        self._pipe.send(('getattr', name))
1458
1112
        data = self._pipe.recv()
1463
1117
                self._pipe.send(('funcall', name, args, kwargs))
1464
1118
                return self._pipe.recv()[1]
1465
1119
            return func
1466
 
    
 
1120
 
1467
1121
    def __setattr__(self, name, value):
1468
 
        if name == '_pipe':
 
1122
        if(name == '_pipe'):
1469
1123
            return super(ProxyClient, self).__setattr__(name, value)
1470
1124
        self._pipe.send(('setattr', name, value))
1471
1125
 
1472
1126
 
1473
 
class ClientDBusTransitional(ClientDBus):
1474
 
    __metaclass__ = AlternateDBusNamesMetaclass
1475
 
 
1476
 
 
1477
1127
class ClientHandler(socketserver.BaseRequestHandler, object):
1478
1128
    """A class to handle client connections.
1479
1129
    
1482
1132
    
1483
1133
    def handle(self):
1484
1134
        with contextlib.closing(self.server.child_pipe) as child_pipe:
1485
 
            logger.info("TCP connection from: %s",
 
1135
            logger.info(u"TCP connection from: %s",
1486
1136
                        unicode(self.client_address))
1487
 
            logger.debug("Pipe FD: %d",
 
1137
            logger.debug(u"Pipe FD: %d",
1488
1138
                         self.server.child_pipe.fileno())
1489
 
            
 
1139
 
1490
1140
            session = (gnutls.connection
1491
1141
                       .ClientSession(self.request,
1492
1142
                                      gnutls.connection
1493
1143
                                      .X509Credentials()))
1494
 
            
 
1144
 
1495
1145
            # Note: gnutls.connection.X509Credentials is really a
1496
1146
            # generic GnuTLS certificate credentials object so long as
1497
1147
            # no X.509 keys are added to it.  Therefore, we can use it
1498
1148
            # here despite using OpenPGP certificates.
1499
 
            
1500
 
            #priority = ':'.join(("NONE", "+VERS-TLS1.1",
1501
 
            #                      "+AES-256-CBC", "+SHA1",
1502
 
            #                      "+COMP-NULL", "+CTYPE-OPENPGP",
1503
 
            #                      "+DHE-DSS"))
 
1149
 
 
1150
            #priority = u':'.join((u"NONE", u"+VERS-TLS1.1",
 
1151
            #                      u"+AES-256-CBC", u"+SHA1",
 
1152
            #                      u"+COMP-NULL", u"+CTYPE-OPENPGP",
 
1153
            #                      u"+DHE-DSS"))
1504
1154
            # Use a fallback default, since this MUST be set.
1505
1155
            priority = self.server.gnutls_priority
1506
1156
            if priority is None:
1507
 
                priority = "NORMAL"
 
1157
                priority = u"NORMAL"
1508
1158
            (gnutls.library.functions
1509
1159
             .gnutls_priority_set_direct(session._c_object,
1510
1160
                                         priority, None))
1511
 
            
 
1161
 
1512
1162
            # Start communication using the Mandos protocol
1513
1163
            # Get protocol number
1514
1164
            line = self.request.makefile().readline()
1515
 
            logger.debug("Protocol version: %r", line)
 
1165
            logger.debug(u"Protocol version: %r", line)
1516
1166
            try:
1517
1167
                if int(line.strip().split()[0]) > 1:
1518
1168
                    raise RuntimeError
1519
 
            except (ValueError, IndexError, RuntimeError) as error:
1520
 
                logger.error("Unknown protocol version: %s", error)
 
1169
            except (ValueError, IndexError, RuntimeError), error:
 
1170
                logger.error(u"Unknown protocol version: %s", error)
1521
1171
                return
1522
 
            
 
1172
 
1523
1173
            # Start GnuTLS connection
1524
1174
            try:
1525
1175
                session.handshake()
1526
 
            except gnutls.errors.GNUTLSError as error:
1527
 
                logger.warning("Handshake failed: %s", error)
 
1176
            except gnutls.errors.GNUTLSError, error:
 
1177
                logger.warning(u"Handshake failed: %s", error)
1528
1178
                # Do not run session.bye() here: the session is not
1529
1179
                # established.  Just abandon the request.
1530
1180
                return
1531
 
            logger.debug("Handshake succeeded")
1532
 
            
 
1181
            logger.debug(u"Handshake succeeded")
 
1182
 
1533
1183
            approval_required = False
1534
1184
            try:
1535
1185
                try:
1536
1186
                    fpr = self.fingerprint(self.peer_certificate
1537
1187
                                           (session))
1538
 
                except (TypeError,
1539
 
                        gnutls.errors.GNUTLSError) as error:
1540
 
                    logger.warning("Bad certificate: %s", error)
 
1188
                except (TypeError, gnutls.errors.GNUTLSError), error:
 
1189
                    logger.warning(u"Bad certificate: %s", error)
1541
1190
                    return
1542
 
                logger.debug("Fingerprint: %s", fpr)
1543
 
                
 
1191
                logger.debug(u"Fingerprint: %s", fpr)
 
1192
 
1544
1193
                try:
1545
1194
                    client = ProxyClient(child_pipe, fpr,
1546
1195
                                         self.client_address)
1547
1196
                except KeyError:
1548
1197
                    return
1549
1198
                
1550
 
                if self.server.use_dbus:
1551
 
                    # Emit D-Bus signal
1552
 
                    client.NewRequest(str(self.client_address))
1553
 
                
1554
1199
                if client.approval_delay:
1555
1200
                    delay = client.approval_delay
1556
1201
                    client.approvals_pending += 1
1558
1203
                
1559
1204
                while True:
1560
1205
                    if not client.enabled:
1561
 
                        logger.info("Client %s is disabled",
 
1206
                        logger.warning(u"Client %s is disabled",
1562
1207
                                       client.name)
1563
1208
                        if self.server.use_dbus:
1564
1209
                            # Emit D-Bus signal
1565
 
                            client.Rejected("Disabled")
 
1210
                            client.Rejected("Disabled")                    
1566
1211
                        return
1567
1212
                    
1568
 
                    if client.approved or not client.approval_delay:
 
1213
                    if client._approved or not client.approval_delay:
1569
1214
                        #We are approved or approval is disabled
1570
1215
                        break
1571
 
                    elif client.approved is None:
1572
 
                        logger.info("Client %s needs approval",
 
1216
                    elif client._approved is None:
 
1217
                        logger.info(u"Client %s needs approval",
1573
1218
                                    client.name)
1574
1219
                        if self.server.use_dbus:
1575
1220
                            # Emit D-Bus signal
1577
1222
                                client.approval_delay_milliseconds(),
1578
1223
                                client.approved_by_default)
1579
1224
                    else:
1580
 
                        logger.warning("Client %s was not approved",
 
1225
                        logger.warning(u"Client %s was not approved",
1581
1226
                                       client.name)
1582
1227
                        if self.server.use_dbus:
1583
1228
                            # Emit D-Bus signal
1585
1230
                        return
1586
1231
                    
1587
1232
                    #wait until timeout or approved
 
1233
                    #x = float(client._timedelta_to_milliseconds(delay))
1588
1234
                    time = datetime.datetime.now()
1589
1235
                    client.changedstate.acquire()
1590
 
                    (client.changedstate.wait
1591
 
                     (float(client.timedelta_to_milliseconds(delay)
1592
 
                            / 1000)))
 
1236
                    client.changedstate.wait(float(client._timedelta_to_milliseconds(delay) / 1000))
1593
1237
                    client.changedstate.release()
1594
1238
                    time2 = datetime.datetime.now()
1595
1239
                    if (time2 - time) >= delay:
1610
1254
                while sent_size < len(client.secret):
1611
1255
                    try:
1612
1256
                        sent = session.send(client.secret[sent_size:])
1613
 
                    except gnutls.errors.GNUTLSError as error:
 
1257
                    except (gnutls.errors.GNUTLSError), error:
1614
1258
                        logger.warning("gnutls send failed")
1615
1259
                        return
1616
 
                    logger.debug("Sent: %d, remaining: %d",
 
1260
                    logger.debug(u"Sent: %d, remaining: %d",
1617
1261
                                 sent, len(client.secret)
1618
1262
                                 - (sent_size + sent))
1619
1263
                    sent_size += sent
1620
 
                
1621
 
                logger.info("Sending secret to %s", client.name)
1622
 
                # bump the timeout using extended_timeout
1623
 
                client.checked_ok(client.extended_timeout)
 
1264
 
 
1265
                logger.info(u"Sending secret to %s", client.name)
 
1266
                # bump the timeout as if seen
 
1267
                client.checked_ok()
1624
1268
                if self.server.use_dbus:
1625
1269
                    # Emit D-Bus signal
1626
1270
                    client.GotSecret()
1630
1274
                    client.approvals_pending -= 1
1631
1275
                try:
1632
1276
                    session.bye()
1633
 
                except gnutls.errors.GNUTLSError as error:
 
1277
                except (gnutls.errors.GNUTLSError), error:
1634
1278
                    logger.warning("GnuTLS bye failed")
1635
1279
    
1636
1280
    @staticmethod
1647
1291
                     .gnutls_certificate_get_peers
1648
1292
                     (session._c_object, ctypes.byref(list_size)))
1649
1293
        if not bool(cert_list) and list_size.value != 0:
1650
 
            raise gnutls.errors.GNUTLSError("error getting peer"
1651
 
                                            " certificate")
 
1294
            raise gnutls.errors.GNUTLSError(u"error getting peer"
 
1295
                                            u" certificate")
1652
1296
        if list_size.value == 0:
1653
1297
            return None
1654
1298
        cert = cert_list[0]
1680
1324
        if crtverify.value != 0:
1681
1325
            gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1682
1326
            raise (gnutls.errors.CertificateSecurityError
1683
 
                   ("Verify failed"))
 
1327
                   (u"Verify failed"))
1684
1328
        # New buffer for the fingerprint
1685
1329
        buf = ctypes.create_string_buffer(20)
1686
1330
        buf_len = ctypes.c_size_t()
1693
1337
        # Convert the buffer to a Python bytestring
1694
1338
        fpr = ctypes.string_at(buf, buf_len.value)
1695
1339
        # Convert the bytestring to hexadecimal notation
1696
 
        hex_fpr = binascii.hexlify(fpr).upper()
 
1340
        hex_fpr = u''.join(u"%02X" % ord(char) for char in fpr)
1697
1341
        return hex_fpr
1698
1342
 
1699
1343
 
1702
1346
    def sub_process_main(self, request, address):
1703
1347
        try:
1704
1348
            self.finish_request(request, address)
1705
 
        except Exception:
 
1349
        except:
1706
1350
            self.handle_error(request, address)
1707
1351
        self.close_request(request)
1708
 
    
 
1352
            
1709
1353
    def process_request(self, request, address):
1710
1354
        """Start a new process to process the request."""
1711
 
        proc = multiprocessing.Process(target = self.sub_process_main,
1712
 
                                       args = (request,
1713
 
                                               address))
1714
 
        proc.start()
1715
 
        return proc
1716
 
 
 
1355
        multiprocessing.Process(target = self.sub_process_main,
 
1356
                                args = (request, address)).start()
1717
1357
 
1718
1358
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1719
1359
    """ adds a pipe to the MixIn """
1723
1363
        This function creates a new pipe in self.pipe
1724
1364
        """
1725
1365
        parent_pipe, self.child_pipe = multiprocessing.Pipe()
1726
 
        
1727
 
        proc = MultiprocessingMixIn.process_request(self, request,
1728
 
                                                    client_address)
 
1366
 
 
1367
        super(MultiprocessingMixInWithPipe,
 
1368
              self).process_request(request, client_address)
1729
1369
        self.child_pipe.close()
1730
 
        self.add_pipe(parent_pipe, proc)
1731
 
    
1732
 
    def add_pipe(self, parent_pipe, proc):
 
1370
        self.add_pipe(parent_pipe)
 
1371
 
 
1372
    def add_pipe(self, parent_pipe):
1733
1373
        """Dummy function; override as necessary"""
1734
 
        raise NotImplementedError
1735
 
 
 
1374
        pass
1736
1375
 
1737
1376
class IPv6_TCPServer(MultiprocessingMixInWithPipe,
1738
1377
                     socketserver.TCPServer, object):
1756
1395
        bind to an address or port if they were not specified."""
1757
1396
        if self.interface is not None:
1758
1397
            if SO_BINDTODEVICE is None:
1759
 
                logger.error("SO_BINDTODEVICE does not exist;"
1760
 
                             " cannot bind to interface %s",
 
1398
                logger.error(u"SO_BINDTODEVICE does not exist;"
 
1399
                             u" cannot bind to interface %s",
1761
1400
                             self.interface)
1762
1401
            else:
1763
1402
                try:
1764
1403
                    self.socket.setsockopt(socket.SOL_SOCKET,
1765
1404
                                           SO_BINDTODEVICE,
1766
1405
                                           str(self.interface
1767
 
                                               + '\0'))
1768
 
                except socket.error as error:
 
1406
                                               + u'\0'))
 
1407
                except socket.error, error:
1769
1408
                    if error[0] == errno.EPERM:
1770
 
                        logger.error("No permission to"
1771
 
                                     " bind to interface %s",
 
1409
                        logger.error(u"No permission to"
 
1410
                                     u" bind to interface %s",
1772
1411
                                     self.interface)
1773
1412
                    elif error[0] == errno.ENOPROTOOPT:
1774
 
                        logger.error("SO_BINDTODEVICE not available;"
1775
 
                                     " cannot bind to interface %s",
 
1413
                        logger.error(u"SO_BINDTODEVICE not available;"
 
1414
                                     u" cannot bind to interface %s",
1776
1415
                                     self.interface)
1777
1416
                    else:
1778
1417
                        raise
1780
1419
        if self.server_address[0] or self.server_address[1]:
1781
1420
            if not self.server_address[0]:
1782
1421
                if self.address_family == socket.AF_INET6:
1783
 
                    any_address = "::" # in6addr_any
 
1422
                    any_address = u"::" # in6addr_any
1784
1423
                else:
1785
1424
                    any_address = socket.INADDR_ANY
1786
1425
                self.server_address = (any_address,
1813
1452
        self.enabled = False
1814
1453
        self.clients = clients
1815
1454
        if self.clients is None:
1816
 
            self.clients = {}
 
1455
            self.clients = set()
1817
1456
        self.use_dbus = use_dbus
1818
1457
        self.gnutls_priority = gnutls_priority
1819
1458
        IPv6_TCPServer.__init__(self, server_address,
1823
1462
    def server_activate(self):
1824
1463
        if self.enabled:
1825
1464
            return socketserver.TCPServer.server_activate(self)
1826
 
    
1827
1465
    def enable(self):
1828
1466
        self.enabled = True
1829
 
    
1830
 
    def add_pipe(self, parent_pipe, proc):
 
1467
    def add_pipe(self, parent_pipe):
1831
1468
        # Call "handle_ipc" for both data and EOF events
1832
1469
        gobject.io_add_watch(parent_pipe.fileno(),
1833
1470
                             gobject.IO_IN | gobject.IO_HUP,
1834
1471
                             functools.partial(self.handle_ipc,
1835
 
                                               parent_pipe =
1836
 
                                               parent_pipe,
1837
 
                                               proc = proc))
1838
 
    
 
1472
                                               parent_pipe = parent_pipe))
 
1473
        
1839
1474
    def handle_ipc(self, source, condition, parent_pipe=None,
1840
 
                   proc = None, client_object=None):
 
1475
                   client_object=None):
1841
1476
        condition_names = {
1842
 
            gobject.IO_IN: "IN",   # There is data to read.
1843
 
            gobject.IO_OUT: "OUT", # Data can be written (without
 
1477
            gobject.IO_IN: u"IN",   # There is data to read.
 
1478
            gobject.IO_OUT: u"OUT", # Data can be written (without
1844
1479
                                    # blocking).
1845
 
            gobject.IO_PRI: "PRI", # There is urgent data to read.
1846
 
            gobject.IO_ERR: "ERR", # Error condition.
1847
 
            gobject.IO_HUP: "HUP"  # Hung up (the connection has been
 
1480
            gobject.IO_PRI: u"PRI", # There is urgent data to read.
 
1481
            gobject.IO_ERR: u"ERR", # Error condition.
 
1482
            gobject.IO_HUP: u"HUP"  # Hung up (the connection has been
1848
1483
                                    # broken, usually for pipes and
1849
1484
                                    # sockets).
1850
1485
            }
1852
1487
                                       for cond, name in
1853
1488
                                       condition_names.iteritems()
1854
1489
                                       if cond & condition)
1855
 
        # error, or the other end of multiprocessing.Pipe has closed
 
1490
        # error or the other end of multiprocessing.Pipe has closed
1856
1491
        if condition & (gobject.IO_ERR | condition & gobject.IO_HUP):
1857
 
            # Wait for other process to exit
1858
 
            proc.join()
1859
1492
            return False
1860
1493
        
1861
1494
        # Read a request from the child
1866
1499
            fpr = request[1]
1867
1500
            address = request[2]
1868
1501
            
1869
 
            for c in self.clients.itervalues():
 
1502
            for c in self.clients:
1870
1503
                if c.fingerprint == fpr:
1871
1504
                    client = c
1872
1505
                    break
1873
1506
            else:
1874
 
                logger.info("Client not found for fingerprint: %s, ad"
1875
 
                            "dress: %s", fpr, address)
 
1507
                logger.warning(u"Client not found for fingerprint: %s, ad"
 
1508
                               u"dress: %s", fpr, address)
1876
1509
                if self.use_dbus:
1877
1510
                    # Emit D-Bus signal
1878
 
                    mandos_dbus_service.ClientNotFound(fpr,
1879
 
                                                       address[0])
 
1511
                    mandos_dbus_service.ClientNotFound(fpr, address)
1880
1512
                parent_pipe.send(False)
1881
1513
                return False
1882
1514
            
1883
1515
            gobject.io_add_watch(parent_pipe.fileno(),
1884
1516
                                 gobject.IO_IN | gobject.IO_HUP,
1885
1517
                                 functools.partial(self.handle_ipc,
1886
 
                                                   parent_pipe =
1887
 
                                                   parent_pipe,
1888
 
                                                   proc = proc,
1889
 
                                                   client_object =
1890
 
                                                   client))
 
1518
                                                   parent_pipe = parent_pipe,
 
1519
                                                   client_object = client))
1891
1520
            parent_pipe.send(True)
1892
 
            # remove the old hook in favor of the new above hook on
1893
 
            # same fileno
 
1521
            # remove the old hook in favor of the new above hook on same fileno
1894
1522
            return False
1895
1523
        if command == 'funcall':
1896
1524
            funcname = request[1]
1897
1525
            args = request[2]
1898
1526
            kwargs = request[3]
1899
1527
            
1900
 
            parent_pipe.send(('data', getattr(client_object,
1901
 
                                              funcname)(*args,
1902
 
                                                         **kwargs)))
1903
 
        
 
1528
            parent_pipe.send(('data', getattr(client_object, funcname)(*args, **kwargs)))
 
1529
 
1904
1530
        if command == 'getattr':
1905
1531
            attrname = request[1]
1906
1532
            if callable(client_object.__getattribute__(attrname)):
1907
1533
                parent_pipe.send(('function',))
1908
1534
            else:
1909
 
                parent_pipe.send(('data', client_object
1910
 
                                  .__getattribute__(attrname)))
 
1535
                parent_pipe.send(('data', client_object.__getattribute__(attrname)))
1911
1536
        
1912
1537
        if command == 'setattr':
1913
1538
            attrname = request[1]
1914
1539
            value = request[2]
1915
1540
            setattr(client_object, attrname, value)
1916
 
        
 
1541
 
1917
1542
        return True
1918
1543
 
1919
1544
 
1920
1545
def string_to_delta(interval):
1921
1546
    """Parse a string and return a datetime.timedelta
1922
1547
    
1923
 
    >>> string_to_delta('7d')
 
1548
    >>> string_to_delta(u'7d')
1924
1549
    datetime.timedelta(7)
1925
 
    >>> string_to_delta('60s')
 
1550
    >>> string_to_delta(u'60s')
1926
1551
    datetime.timedelta(0, 60)
1927
 
    >>> string_to_delta('60m')
 
1552
    >>> string_to_delta(u'60m')
1928
1553
    datetime.timedelta(0, 3600)
1929
 
    >>> string_to_delta('24h')
 
1554
    >>> string_to_delta(u'24h')
1930
1555
    datetime.timedelta(1)
1931
 
    >>> string_to_delta('1w')
 
1556
    >>> string_to_delta(u'1w')
1932
1557
    datetime.timedelta(7)
1933
 
    >>> string_to_delta('5m 30s')
 
1558
    >>> string_to_delta(u'5m 30s')
1934
1559
    datetime.timedelta(0, 330)
1935
1560
    """
1936
1561
    timevalue = datetime.timedelta(0)
1938
1563
        try:
1939
1564
            suffix = unicode(s[-1])
1940
1565
            value = int(s[:-1])
1941
 
            if suffix == "d":
 
1566
            if suffix == u"d":
1942
1567
                delta = datetime.timedelta(value)
1943
 
            elif suffix == "s":
 
1568
            elif suffix == u"s":
1944
1569
                delta = datetime.timedelta(0, value)
1945
 
            elif suffix == "m":
 
1570
            elif suffix == u"m":
1946
1571
                delta = datetime.timedelta(0, 0, 0, 0, value)
1947
 
            elif suffix == "h":
 
1572
            elif suffix == u"h":
1948
1573
                delta = datetime.timedelta(0, 0, 0, 0, 0, value)
1949
 
            elif suffix == "w":
 
1574
            elif suffix == u"w":
1950
1575
                delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
1951
1576
            else:
1952
 
                raise ValueError("Unknown suffix %r" % suffix)
1953
 
        except (ValueError, IndexError) as e:
1954
 
            raise ValueError(*(e.args))
 
1577
                raise ValueError(u"Unknown suffix %r" % suffix)
 
1578
        except (ValueError, IndexError), e:
 
1579
            raise ValueError(e.message)
1955
1580
        timevalue += delta
1956
1581
    return timevalue
1957
1582
 
1958
1583
 
 
1584
def if_nametoindex(interface):
 
1585
    """Call the C function if_nametoindex(), or equivalent
 
1586
    
 
1587
    Note: This function cannot accept a unicode string."""
 
1588
    global if_nametoindex
 
1589
    try:
 
1590
        if_nametoindex = (ctypes.cdll.LoadLibrary
 
1591
                          (ctypes.util.find_library(u"c"))
 
1592
                          .if_nametoindex)
 
1593
    except (OSError, AttributeError):
 
1594
        logger.warning(u"Doing if_nametoindex the hard way")
 
1595
        def if_nametoindex(interface):
 
1596
            "Get an interface index the hard way, i.e. using fcntl()"
 
1597
            SIOCGIFINDEX = 0x8933  # From /usr/include/linux/sockios.h
 
1598
            with contextlib.closing(socket.socket()) as s:
 
1599
                ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
 
1600
                                    struct.pack(str(u"16s16x"),
 
1601
                                                interface))
 
1602
            interface_index = struct.unpack(str(u"I"),
 
1603
                                            ifreq[16:20])[0]
 
1604
            return interface_index
 
1605
    return if_nametoindex(interface)
 
1606
 
 
1607
 
1959
1608
def daemon(nochdir = False, noclose = False):
1960
1609
    """See daemon(3).  Standard BSD Unix function.
1961
1610
    
1964
1613
        sys.exit()
1965
1614
    os.setsid()
1966
1615
    if not nochdir:
1967
 
        os.chdir("/")
 
1616
        os.chdir(u"/")
1968
1617
    if os.fork():
1969
1618
        sys.exit()
1970
1619
    if not noclose:
1972
1621
        null = os.open(os.path.devnull, os.O_NOCTTY | os.O_RDWR)
1973
1622
        if not stat.S_ISCHR(os.fstat(null).st_mode):
1974
1623
            raise OSError(errno.ENODEV,
1975
 
                          "%s not a character device"
 
1624
                          u"%s not a character device"
1976
1625
                          % os.path.devnull)
1977
1626
        os.dup2(null, sys.stdin.fileno())
1978
1627
        os.dup2(null, sys.stdout.fileno())
1986
1635
    ##################################################################
1987
1636
    # Parsing of options, both command line and config file
1988
1637
    
1989
 
    parser = argparse.ArgumentParser()
1990
 
    parser.add_argument("-v", "--version", action="version",
1991
 
                        version = "%%(prog)s %s" % version,
1992
 
                        help="show version number and exit")
1993
 
    parser.add_argument("-i", "--interface", metavar="IF",
1994
 
                        help="Bind to interface IF")
1995
 
    parser.add_argument("-a", "--address",
1996
 
                        help="Address to listen for requests on")
1997
 
    parser.add_argument("-p", "--port", type=int,
1998
 
                        help="Port number to receive requests on")
1999
 
    parser.add_argument("--check", action="store_true",
2000
 
                        help="Run self-test")
2001
 
    parser.add_argument("--debug", action="store_true",
2002
 
                        help="Debug mode; run in foreground and log"
2003
 
                        " to terminal")
2004
 
    parser.add_argument("--debuglevel", metavar="LEVEL",
2005
 
                        help="Debug level for stdout output")
2006
 
    parser.add_argument("--priority", help="GnuTLS"
2007
 
                        " priority string (see GnuTLS documentation)")
2008
 
    parser.add_argument("--servicename",
2009
 
                        metavar="NAME", help="Zeroconf service name")
2010
 
    parser.add_argument("--configdir",
2011
 
                        default="/etc/mandos", metavar="DIR",
2012
 
                        help="Directory to search for configuration"
2013
 
                        " files")
2014
 
    parser.add_argument("--no-dbus", action="store_false",
2015
 
                        dest="use_dbus", help="Do not provide D-Bus"
2016
 
                        " system bus interface")
2017
 
    parser.add_argument("--no-ipv6", action="store_false",
2018
 
                        dest="use_ipv6", help="Do not use IPv6")
2019
 
    parser.add_argument("--no-restore", action="store_false",
2020
 
                        dest="restore", help="Do not restore stored"
2021
 
                        " state")
2022
 
    parser.add_argument("--statedir", metavar="DIR",
2023
 
                        help="Directory to save/restore state in")
2024
 
    
2025
 
    options = parser.parse_args()
 
1638
    parser = optparse.OptionParser(version = "%%prog %s" % version)
 
1639
    parser.add_option("-i", u"--interface", type=u"string",
 
1640
                      metavar="IF", help=u"Bind to interface IF")
 
1641
    parser.add_option("-a", u"--address", type=u"string",
 
1642
                      help=u"Address to listen for requests on")
 
1643
    parser.add_option("-p", u"--port", type=u"int",
 
1644
                      help=u"Port number to receive requests on")
 
1645
    parser.add_option("--check", action=u"store_true",
 
1646
                      help=u"Run self-test")
 
1647
    parser.add_option("--debug", action=u"store_true",
 
1648
                      help=u"Debug mode; run in foreground and log to"
 
1649
                      u" terminal")
 
1650
    parser.add_option("--debuglevel", type=u"string", metavar="Level",
 
1651
                      help=u"Debug level for stdout output")
 
1652
    parser.add_option("--priority", type=u"string", help=u"GnuTLS"
 
1653
                      u" priority string (see GnuTLS documentation)")
 
1654
    parser.add_option("--servicename", type=u"string",
 
1655
                      metavar=u"NAME", help=u"Zeroconf service name")
 
1656
    parser.add_option("--configdir", type=u"string",
 
1657
                      default=u"/etc/mandos", metavar=u"DIR",
 
1658
                      help=u"Directory to search for configuration"
 
1659
                      u" files")
 
1660
    parser.add_option("--no-dbus", action=u"store_false",
 
1661
                      dest=u"use_dbus", help=u"Do not provide D-Bus"
 
1662
                      u" system bus interface")
 
1663
    parser.add_option("--no-ipv6", action=u"store_false",
 
1664
                      dest=u"use_ipv6", help=u"Do not use IPv6")
 
1665
    options = parser.parse_args()[0]
2026
1666
    
2027
1667
    if options.check:
2028
1668
        import doctest
2030
1670
        sys.exit()
2031
1671
    
2032
1672
    # Default values for config file for server-global settings
2033
 
    server_defaults = { "interface": "",
2034
 
                        "address": "",
2035
 
                        "port": "",
2036
 
                        "debug": "False",
2037
 
                        "priority":
2038
 
                        "SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
2039
 
                        "servicename": "Mandos",
2040
 
                        "use_dbus": "True",
2041
 
                        "use_ipv6": "True",
2042
 
                        "debuglevel": "",
2043
 
                        "restore": "True",
2044
 
                        "statedir": "/var/lib/mandos"
 
1673
    server_defaults = { u"interface": u"",
 
1674
                        u"address": u"",
 
1675
                        u"port": u"",
 
1676
                        u"debug": u"False",
 
1677
                        u"priority":
 
1678
                        u"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP",
 
1679
                        u"servicename": u"Mandos",
 
1680
                        u"use_dbus": u"True",
 
1681
                        u"use_ipv6": u"True",
 
1682
                        u"debuglevel": u"",
2045
1683
                        }
2046
1684
    
2047
1685
    # Parse config file for server-global settings
2048
1686
    server_config = configparser.SafeConfigParser(server_defaults)
2049
1687
    del server_defaults
2050
1688
    server_config.read(os.path.join(options.configdir,
2051
 
                                    "mandos.conf"))
 
1689
                                    u"mandos.conf"))
2052
1690
    # Convert the SafeConfigParser object to a dict
2053
1691
    server_settings = server_config.defaults()
2054
1692
    # Use the appropriate methods on the non-string config options
2055
 
    for option in ("debug", "use_dbus", "use_ipv6"):
2056
 
        server_settings[option] = server_config.getboolean("DEFAULT",
 
1693
    for option in (u"debug", u"use_dbus", u"use_ipv6"):
 
1694
        server_settings[option] = server_config.getboolean(u"DEFAULT",
2057
1695
                                                           option)
2058
1696
    if server_settings["port"]:
2059
 
        server_settings["port"] = server_config.getint("DEFAULT",
2060
 
                                                       "port")
 
1697
        server_settings["port"] = server_config.getint(u"DEFAULT",
 
1698
                                                       u"port")
2061
1699
    del server_config
2062
1700
    
2063
1701
    # Override the settings from the config file with command line
2064
1702
    # options, if set.
2065
 
    for option in ("interface", "address", "port", "debug",
2066
 
                   "priority", "servicename", "configdir",
2067
 
                   "use_dbus", "use_ipv6", "debuglevel", "restore",
2068
 
                   "statedir"):
 
1703
    for option in (u"interface", u"address", u"port", u"debug",
 
1704
                   u"priority", u"servicename", u"configdir",
 
1705
                   u"use_dbus", u"use_ipv6", u"debuglevel"):
2069
1706
        value = getattr(options, option)
2070
1707
        if value is not None:
2071
1708
            server_settings[option] = value
2079
1716
    ##################################################################
2080
1717
    
2081
1718
    # For convenience
2082
 
    debug = server_settings["debug"]
2083
 
    debuglevel = server_settings["debuglevel"]
2084
 
    use_dbus = server_settings["use_dbus"]
2085
 
    use_ipv6 = server_settings["use_ipv6"]
2086
 
    stored_state_path = os.path.join(server_settings["statedir"],
2087
 
                                     stored_state_file)
2088
 
    
2089
 
    if debug:
2090
 
        initlogger(debug, logging.DEBUG)
2091
 
    else:
2092
 
        if not debuglevel:
2093
 
            initlogger(debug)
2094
 
        else:
2095
 
            level = getattr(logging, debuglevel.upper())
2096
 
            initlogger(debug, level)
2097
 
    
2098
 
    if server_settings["servicename"] != "Mandos":
 
1719
    debug = server_settings[u"debug"]
 
1720
    debuglevel = server_settings[u"debuglevel"]
 
1721
    use_dbus = server_settings[u"use_dbus"]
 
1722
    use_ipv6 = server_settings[u"use_ipv6"]
 
1723
 
 
1724
    if server_settings[u"servicename"] != u"Mandos":
2099
1725
        syslogger.setFormatter(logging.Formatter
2100
 
                               ('Mandos (%s) [%%(process)d]:'
2101
 
                                ' %%(levelname)s: %%(message)s'
2102
 
                                % server_settings["servicename"]))
 
1726
                               (u'Mandos (%s) [%%(process)d]:'
 
1727
                                u' %%(levelname)s: %%(message)s'
 
1728
                                % server_settings[u"servicename"]))
2103
1729
    
2104
1730
    # Parse config file with clients
2105
 
    client_config = configparser.SafeConfigParser(Client
2106
 
                                                  .client_defaults)
2107
 
    client_config.read(os.path.join(server_settings["configdir"],
2108
 
                                    "clients.conf"))
 
1731
    client_defaults = { u"timeout": u"1h",
 
1732
                        u"interval": u"5m",
 
1733
                        u"checker": u"fping -q -- %%(host)s",
 
1734
                        u"host": u"",
 
1735
                        u"approval_delay": u"0s",
 
1736
                        u"approval_duration": u"1s",
 
1737
                        }
 
1738
    client_config = configparser.SafeConfigParser(client_defaults)
 
1739
    client_config.read(os.path.join(server_settings[u"configdir"],
 
1740
                                    u"clients.conf"))
2109
1741
    
2110
1742
    global mandos_dbus_service
2111
1743
    mandos_dbus_service = None
2112
1744
    
2113
 
    tcp_server = MandosServer((server_settings["address"],
2114
 
                               server_settings["port"]),
 
1745
    tcp_server = MandosServer((server_settings[u"address"],
 
1746
                               server_settings[u"port"]),
2115
1747
                              ClientHandler,
2116
 
                              interface=(server_settings["interface"]
 
1748
                              interface=(server_settings[u"interface"]
2117
1749
                                         or None),
2118
1750
                              use_ipv6=use_ipv6,
2119
1751
                              gnutls_priority=
2120
 
                              server_settings["priority"],
 
1752
                              server_settings[u"priority"],
2121
1753
                              use_dbus=use_dbus)
2122
 
    if not debug:
2123
 
        pidfilename = "/var/run/mandos.pid"
2124
 
        try:
2125
 
            pidfile = open(pidfilename, "w")
2126
 
        except IOError:
2127
 
            logger.error("Could not open file %r", pidfilename)
 
1754
    pidfilename = u"/var/run/mandos.pid"
 
1755
    try:
 
1756
        pidfile = open(pidfilename, u"w")
 
1757
    except IOError:
 
1758
        logger.error(u"Could not open file %r", pidfilename)
2128
1759
    
2129
1760
    try:
2130
 
        uid = pwd.getpwnam("_mandos").pw_uid
2131
 
        gid = pwd.getpwnam("_mandos").pw_gid
 
1761
        uid = pwd.getpwnam(u"_mandos").pw_uid
 
1762
        gid = pwd.getpwnam(u"_mandos").pw_gid
2132
1763
    except KeyError:
2133
1764
        try:
2134
 
            uid = pwd.getpwnam("mandos").pw_uid
2135
 
            gid = pwd.getpwnam("mandos").pw_gid
 
1765
            uid = pwd.getpwnam(u"mandos").pw_uid
 
1766
            gid = pwd.getpwnam(u"mandos").pw_gid
2136
1767
        except KeyError:
2137
1768
            try:
2138
 
                uid = pwd.getpwnam("nobody").pw_uid
2139
 
                gid = pwd.getpwnam("nobody").pw_gid
 
1769
                uid = pwd.getpwnam(u"nobody").pw_uid
 
1770
                gid = pwd.getpwnam(u"nobody").pw_gid
2140
1771
            except KeyError:
2141
1772
                uid = 65534
2142
1773
                gid = 65534
2143
1774
    try:
2144
1775
        os.setgid(gid)
2145
1776
        os.setuid(uid)
2146
 
    except OSError as error:
 
1777
    except OSError, error:
2147
1778
        if error[0] != errno.EPERM:
2148
1779
            raise error
2149
1780
    
 
1781
    if not debug and not debuglevel:
 
1782
        syslogger.setLevel(logging.WARNING)
 
1783
        console.setLevel(logging.WARNING)
 
1784
    if debuglevel:
 
1785
        level = getattr(logging, debuglevel.upper())
 
1786
        syslogger.setLevel(level)
 
1787
        console.setLevel(level)
 
1788
 
2150
1789
    if debug:
2151
1790
        # Enable all possible GnuTLS debugging
2152
1791
        
2156
1795
        
2157
1796
        @gnutls.library.types.gnutls_log_func
2158
1797
        def debug_gnutls(level, string):
2159
 
            logger.debug("GnuTLS: %s", string[:-1])
 
1798
            logger.debug(u"GnuTLS: %s", string[:-1])
2160
1799
        
2161
1800
        (gnutls.library.functions
2162
1801
         .gnutls_global_set_log_function(debug_gnutls))
2166
1805
        os.dup2(null, sys.stdin.fileno())
2167
1806
        if null > 2:
2168
1807
            os.close(null)
2169
 
    
2170
 
    # Need to fork before connecting to D-Bus
2171
 
    if not debug:
2172
 
        # Close all input and output, do double fork, etc.
2173
 
        daemon()
2174
 
    
2175
 
    gobject.threads_init()
 
1808
    else:
 
1809
        # No console logging
 
1810
        logger.removeHandler(console)
 
1811
    
2176
1812
    
2177
1813
    global main_loop
2178
1814
    # From the Avahi example code
2182
1818
    # End of Avahi example code
2183
1819
    if use_dbus:
2184
1820
        try:
2185
 
            bus_name = dbus.service.BusName("se.recompile.Mandos",
 
1821
            bus_name = dbus.service.BusName(u"se.bsnet.fukt.Mandos",
2186
1822
                                            bus, do_not_queue=True)
2187
 
            old_bus_name = (dbus.service.BusName
2188
 
                            ("se.bsnet.fukt.Mandos", bus,
2189
 
                             do_not_queue=True))
2190
 
        except dbus.exceptions.NameExistsException as e:
2191
 
            logger.error(unicode(e) + ", disabling D-Bus")
 
1823
        except dbus.exceptions.NameExistsException, e:
 
1824
            logger.error(unicode(e) + u", disabling D-Bus")
2192
1825
            use_dbus = False
2193
 
            server_settings["use_dbus"] = False
 
1826
            server_settings[u"use_dbus"] = False
2194
1827
            tcp_server.use_dbus = False
2195
1828
    protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2196
 
    service = AvahiServiceToSyslog(name =
2197
 
                                   server_settings["servicename"],
2198
 
                                   servicetype = "_mandos._tcp",
2199
 
                                   protocol = protocol, bus = bus)
 
1829
    service = AvahiService(name = server_settings[u"servicename"],
 
1830
                           servicetype = u"_mandos._tcp",
 
1831
                           protocol = protocol, bus = bus)
2200
1832
    if server_settings["interface"]:
2201
1833
        service.interface = (if_nametoindex
2202
 
                             (str(server_settings["interface"])))
2203
 
    
 
1834
                             (str(server_settings[u"interface"])))
 
1835
 
 
1836
    if not debug:
 
1837
        # Close all input and output, do double fork, etc.
 
1838
        daemon()
 
1839
        
2204
1840
    global multiprocessing_manager
2205
1841
    multiprocessing_manager = multiprocessing.Manager()
2206
1842
    
2207
1843
    client_class = Client
2208
1844
    if use_dbus:
2209
 
        client_class = functools.partial(ClientDBusTransitional,
2210
 
                                         bus = bus)
2211
 
    
2212
 
    client_settings = Client.config_parser(client_config)
2213
 
    old_client_settings = {}
2214
 
    clients_data = {}
2215
 
    
2216
 
    # Get client data and settings from last running state.
2217
 
    if server_settings["restore"]:
2218
 
        try:
2219
 
            with open(stored_state_path, "rb") as stored_state:
2220
 
                clients_data, old_client_settings = (pickle.load
2221
 
                                                     (stored_state))
2222
 
            os.remove(stored_state_path)
2223
 
        except IOError as e:
2224
 
            logger.warning("Could not load persistent state: {0}"
2225
 
                           .format(e))
2226
 
            if e.errno != errno.ENOENT:
2227
 
                raise
2228
 
        except EOFError as e:
2229
 
            logger.warning("Could not load persistent state: "
2230
 
                           "EOFError: {0}".format(e))
2231
 
    
2232
 
    with PGPEngine() as pgp:
2233
 
        for client_name, client in clients_data.iteritems():
2234
 
            # Decide which value to use after restoring saved state.
2235
 
            # We have three different values: Old config file,
2236
 
            # new config file, and saved state.
2237
 
            # New config value takes precedence if it differs from old
2238
 
            # config value, otherwise use saved state.
2239
 
            for name, value in client_settings[client_name].items():
2240
 
                try:
2241
 
                    # For each value in new config, check if it
2242
 
                    # differs from the old config value (Except for
2243
 
                    # the "secret" attribute)
2244
 
                    if (name != "secret" and
2245
 
                        value != old_client_settings[client_name]
2246
 
                        [name]):
2247
 
                        client[name] = value
2248
 
                except KeyError:
2249
 
                    pass
2250
 
            
2251
 
            # Clients who has passed its expire date can still be
2252
 
            # enabled if its last checker was successful.  Clients
2253
 
            # whose checker failed before we stored its state is
2254
 
            # assumed to have failed all checkers during downtime.
2255
 
            if client["enabled"]:
2256
 
                if datetime.datetime.utcnow() >= client["expires"]:
2257
 
                    if not client["last_checked_ok"]:
2258
 
                        logger.warning(
2259
 
                            "disabling client {0} - Client never "
2260
 
                            "performed a successfull checker"
2261
 
                            .format(client["name"]))
2262
 
                        client["enabled"] = False
2263
 
                    elif client["last_checker_status"] != 0:
2264
 
                        logger.warning(
2265
 
                            "disabling client {0} - Client "
2266
 
                            "last checker failed with error code {1}"
2267
 
                            .format(client["name"],
2268
 
                                    client["last_checker_status"]))
2269
 
                        client["enabled"] = False
2270
 
                    else:
2271
 
                        client["expires"] = (datetime.datetime
2272
 
                                             .utcnow()
2273
 
                                             + client["timeout"])
2274
 
                        logger.debug("Last checker succeeded,"
2275
 
                                     " keeping {0} enabled"
2276
 
                                     .format(client["name"]))
 
1845
        client_class = functools.partial(ClientDBus, bus = bus)
 
1846
    def client_config_items(config, section):
 
1847
        special_settings = {
 
1848
            "approved_by_default":
 
1849
                lambda: config.getboolean(section,
 
1850
                                          "approved_by_default"),
 
1851
            }
 
1852
        for name, value in config.items(section):
2277
1853
            try:
2278
 
                client["secret"] = (
2279
 
                    pgp.decrypt(client["encrypted_secret"],
2280
 
                                client_settings[client_name]
2281
 
                                ["secret"]))
2282
 
            except PGPError:
2283
 
                # If decryption fails, we use secret from new settings
2284
 
                logger.debug("Failed to decrypt {0} old secret"
2285
 
                             .format(client_name))
2286
 
                client["secret"] = (
2287
 
                    client_settings[client_name]["secret"])
2288
 
 
2289
 
    
2290
 
    # Add/remove clients based on new changes made to config
2291
 
    for client_name in (set(old_client_settings)
2292
 
                        - set(client_settings)):
2293
 
        del clients_data[client_name]
2294
 
    for client_name in (set(client_settings)
2295
 
                        - set(old_client_settings)):
2296
 
        clients_data[client_name] = client_settings[client_name]
2297
 
 
2298
 
    # Create clients all clients
2299
 
    for client_name, client in clients_data.iteritems():
2300
 
        tcp_server.clients[client_name] = client_class(
2301
 
            name = client_name, settings = client)
2302
 
    
 
1854
                yield (name, special_settings[name]())
 
1855
            except KeyError:
 
1856
                yield (name, value)
 
1857
    
 
1858
    tcp_server.clients.update(set(
 
1859
            client_class(name = section,
 
1860
                         config= dict(client_config_items(
 
1861
                        client_config, section)))
 
1862
            for section in client_config.sections()))
2303
1863
    if not tcp_server.clients:
2304
 
        logger.warning("No clients defined")
 
1864
        logger.warning(u"No clients defined")
2305
1865
        
 
1866
    try:
 
1867
        with pidfile:
 
1868
            pid = os.getpid()
 
1869
            pidfile.write(str(pid) + "\n")
 
1870
        del pidfile
 
1871
    except IOError:
 
1872
        logger.error(u"Could not write to file %r with PID %d",
 
1873
                     pidfilename, pid)
 
1874
    except NameError:
 
1875
        # "pidfile" was never created
 
1876
        pass
 
1877
    del pidfilename
 
1878
    
2306
1879
    if not debug:
2307
 
        try:
2308
 
            with pidfile:
2309
 
                pid = os.getpid()
2310
 
                pidfile.write(str(pid) + "\n".encode("utf-8"))
2311
 
            del pidfile
2312
 
        except IOError:
2313
 
            logger.error("Could not write to file %r with PID %d",
2314
 
                         pidfilename, pid)
2315
 
        except NameError:
2316
 
            # "pidfile" was never created
2317
 
            pass
2318
 
        del pidfilename
2319
1880
        signal.signal(signal.SIGINT, signal.SIG_IGN)
2320
 
    
2321
1881
    signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2322
1882
    signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
2323
1883
    
2325
1885
        class MandosDBusService(dbus.service.Object):
2326
1886
            """A D-Bus proxy object"""
2327
1887
            def __init__(self):
2328
 
                dbus.service.Object.__init__(self, bus, "/")
2329
 
            _interface = "se.recompile.Mandos"
 
1888
                dbus.service.Object.__init__(self, bus, u"/")
 
1889
            _interface = u"se.bsnet.fukt.Mandos"
2330
1890
            
2331
 
            @dbus.service.signal(_interface, signature="o")
 
1891
            @dbus.service.signal(_interface, signature=u"o")
2332
1892
            def ClientAdded(self, objpath):
2333
1893
                "D-Bus signal"
2334
1894
                pass
2335
1895
            
2336
 
            @dbus.service.signal(_interface, signature="ss")
 
1896
            @dbus.service.signal(_interface, signature=u"ss")
2337
1897
            def ClientNotFound(self, fingerprint, address):
2338
1898
                "D-Bus signal"
2339
1899
                pass
2340
1900
            
2341
 
            @dbus.service.signal(_interface, signature="os")
 
1901
            @dbus.service.signal(_interface, signature=u"os")
2342
1902
            def ClientRemoved(self, objpath, name):
2343
1903
                "D-Bus signal"
2344
1904
                pass
2345
1905
            
2346
 
            @dbus.service.method(_interface, out_signature="ao")
 
1906
            @dbus.service.method(_interface, out_signature=u"ao")
2347
1907
            def GetAllClients(self):
2348
1908
                "D-Bus method"
2349
1909
                return dbus.Array(c.dbus_object_path
2350
 
                                  for c in
2351
 
                                  tcp_server.clients.itervalues())
 
1910
                                  for c in tcp_server.clients)
2352
1911
            
2353
1912
            @dbus.service.method(_interface,
2354
 
                                 out_signature="a{oa{sv}}")
 
1913
                                 out_signature=u"a{oa{sv}}")
2355
1914
            def GetAllClientsWithProperties(self):
2356
1915
                "D-Bus method"
2357
1916
                return dbus.Dictionary(
2358
 
                    ((c.dbus_object_path, c.GetAll(""))
2359
 
                     for c in tcp_server.clients.itervalues()),
2360
 
                    signature="oa{sv}")
 
1917
                    ((c.dbus_object_path, c.GetAll(u""))
 
1918
                     for c in tcp_server.clients),
 
1919
                    signature=u"oa{sv}")
2361
1920
            
2362
 
            @dbus.service.method(_interface, in_signature="o")
 
1921
            @dbus.service.method(_interface, in_signature=u"o")
2363
1922
            def RemoveClient(self, object_path):
2364
1923
                "D-Bus method"
2365
 
                for c in tcp_server.clients.itervalues():
 
1924
                for c in tcp_server.clients:
2366
1925
                    if c.dbus_object_path == object_path:
2367
 
                        del tcp_server.clients[c.name]
 
1926
                        tcp_server.clients.remove(c)
2368
1927
                        c.remove_from_connection()
2369
1928
                        # Don't signal anything except ClientRemoved
2370
1929
                        c.disable(quiet=True)
2375
1934
            
2376
1935
            del _interface
2377
1936
        
2378
 
        class MandosDBusServiceTransitional(MandosDBusService):
2379
 
            __metaclass__ = AlternateDBusNamesMetaclass
2380
 
        mandos_dbus_service = MandosDBusServiceTransitional()
 
1937
        mandos_dbus_service = MandosDBusService()
2381
1938
    
2382
1939
    def cleanup():
2383
1940
        "Cleanup function; run on exit"
2384
1941
        service.cleanup()
2385
1942
        
2386
 
        multiprocessing.active_children()
2387
 
        if not (tcp_server.clients or client_settings):
2388
 
            return
2389
 
        
2390
 
        # Store client before exiting. Secrets are encrypted with key
2391
 
        # based on what config file has. If config file is
2392
 
        # removed/edited, old secret will thus be unrecovable.
2393
 
        clients = {}
2394
 
        with PGPEngine() as pgp:
2395
 
            for client in tcp_server.clients.itervalues():
2396
 
                key = client_settings[client.name]["secret"]
2397
 
                client.encrypted_secret = pgp.encrypt(client.secret,
2398
 
                                                      key)
2399
 
                client_dict = {}
2400
 
                
2401
 
                # A list of attributes that can not be pickled
2402
 
                # + secret.
2403
 
                exclude = set(("bus", "changedstate", "secret",
2404
 
                               "checker"))
2405
 
                for name, typ in (inspect.getmembers
2406
 
                                  (dbus.service.Object)):
2407
 
                    exclude.add(name)
2408
 
                
2409
 
                client_dict["encrypted_secret"] = (client
2410
 
                                                   .encrypted_secret)
2411
 
                for attr in client.client_structure:
2412
 
                    if attr not in exclude:
2413
 
                        client_dict[attr] = getattr(client, attr)
2414
 
                
2415
 
                clients[client.name] = client_dict
2416
 
                del client_settings[client.name]["secret"]
2417
 
        
2418
 
        try:
2419
 
            tempfd, tempname = tempfile.mkstemp(suffix=".pickle",
2420
 
                                                prefix="clients-",
2421
 
                                                dir=os.path.dirname
2422
 
                                                (stored_state_path))
2423
 
            with os.fdopen(tempfd, "wb") as stored_state:
2424
 
                pickle.dump((clients, client_settings), stored_state)
2425
 
            os.rename(tempname, stored_state_path)
2426
 
        except (IOError, OSError) as e:
2427
 
            logger.warning("Could not save persistent state: {0}"
2428
 
                           .format(e))
2429
 
            if not debug:
2430
 
                try:
2431
 
                    os.remove(tempname)
2432
 
                except NameError:
2433
 
                    pass
2434
 
            if e.errno not in set((errno.ENOENT, errno.EACCES,
2435
 
                                   errno.EEXIST)):
2436
 
                raise e
2437
 
        
2438
 
        # Delete all clients, and settings from config
2439
1943
        while tcp_server.clients:
2440
 
            name, client = tcp_server.clients.popitem()
 
1944
            client = tcp_server.clients.pop()
2441
1945
            if use_dbus:
2442
1946
                client.remove_from_connection()
 
1947
            client.disable_hook = None
2443
1948
            # Don't signal anything except ClientRemoved
2444
1949
            client.disable(quiet=True)
2445
1950
            if use_dbus:
2446
1951
                # Emit D-Bus signal
2447
 
                mandos_dbus_service.ClientRemoved(client
2448
 
                                                  .dbus_object_path,
 
1952
                mandos_dbus_service.ClientRemoved(client.dbus_object_path,
2449
1953
                                                  client.name)
2450
 
        client_settings.clear()
2451
1954
    
2452
1955
    atexit.register(cleanup)
2453
1956
    
2454
 
    for client in tcp_server.clients.itervalues():
 
1957
    for client in tcp_server.clients:
2455
1958
        if use_dbus:
2456
1959
            # Emit D-Bus signal
2457
1960
            mandos_dbus_service.ClientAdded(client.dbus_object_path)
2458
 
        # Need to initiate checking of clients
2459
 
        if client.enabled:
2460
 
            client.init_checker()
 
1961
        client.enable()
2461
1962
    
2462
1963
    tcp_server.enable()
2463
1964
    tcp_server.server_activate()
2465
1966
    # Find out what port we got
2466
1967
    service.port = tcp_server.socket.getsockname()[1]
2467
1968
    if use_ipv6:
2468
 
        logger.info("Now listening on address %r, port %d,"
 
1969
        logger.info(u"Now listening on address %r, port %d,"
2469
1970
                    " flowinfo %d, scope_id %d"
2470
1971
                    % tcp_server.socket.getsockname())
2471
1972
    else:                       # IPv4
2472
 
        logger.info("Now listening on address %r, port %d"
 
1973
        logger.info(u"Now listening on address %r, port %d"
2473
1974
                    % tcp_server.socket.getsockname())
2474
1975
    
2475
1976
    #service.interface = tcp_server.socket.getsockname()[3]
2478
1979
        # From the Avahi example code
2479
1980
        try:
2480
1981
            service.activate()
2481
 
        except dbus.exceptions.DBusException as error:
2482
 
            logger.critical("DBusException: %s", error)
 
1982
        except dbus.exceptions.DBusException, error:
 
1983
            logger.critical(u"DBusException: %s", error)
2483
1984
            cleanup()
2484
1985
            sys.exit(1)
2485
1986
        # End of Avahi example code
2489
1990
                             (tcp_server.handle_request
2490
1991
                              (*args[2:], **kwargs) or True))
2491
1992
        
2492
 
        logger.debug("Starting main loop")
 
1993
        logger.debug(u"Starting main loop")
2493
1994
        main_loop.run()
2494
 
    except AvahiError as error:
2495
 
        logger.critical("AvahiError: %s", error)
 
1995
    except AvahiError, error:
 
1996
        logger.critical(u"AvahiError: %s", error)
2496
1997
        cleanup()
2497
1998
        sys.exit(1)
2498
1999
    except KeyboardInterrupt:
2499
2000
        if debug:
2500
 
            print("", file=sys.stderr)
2501
 
        logger.debug("Server received KeyboardInterrupt")
2502
 
    logger.debug("Server exiting")
 
2001
            print >> sys.stderr
 
2002
        logger.debug(u"Server received KeyboardInterrupt")
 
2003
    logger.debug(u"Server exiting")
2503
2004
    # Must run before the D-Bus bus name gets deregistered
2504
2005
    cleanup()
2505
2006