/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2016-03-07 23:39:36 UTC
  • Revision ID: teddy@recompile.se-20160307233936-mhgpxhggamde443n
Server bug fix: Include CAP_SETGID so it does not run as root

* debian/mandos.postinst (configure): If old version was 1.7.4-1 or
  1.7.4-1~bpo8+1, fix situation where clients.pickle file is owned by
  root.
* mandos (main): Print debug info about setuid() and setgid()
* mandos.service ([Service]/CapabilityBoundingSet): Add "CAP_KILL
  CAP_SETGID"; the latter is needed for setgid() to be allowed.

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mandos-monitor
1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
 
5
# 
 
6
# Copyright © 2009-2016 Teddy Hogeborn
 
7
# Copyright © 2009-2016 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
# 
21
19
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
24
23
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
24
# 
 
25
 
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
 
 
29
28
try:
30
29
    from future_builtins import *
31
30
except ImportError:
32
31
    pass
33
32
 
34
33
import sys
35
 
import logging
36
34
import os
37
 
import warnings
 
35
 
38
36
import datetime
39
 
import locale
40
37
 
41
38
import urwid.curses_display
42
39
import urwid
43
40
 
44
41
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
42
try:
 
43
    from gi.repository import GObject
 
44
except ImportError:
 
45
    import gobject as GObject
46
46
 
47
47
import dbus
48
48
 
 
49
import locale
 
50
 
49
51
if sys.version_info.major == 2:
50
 
    __metaclass__ = type
51
52
    str = unicode
52
 
    input = raw_input
53
 
 
54
 
# Show warnings by default
55
 
if not sys.warnoptions:
56
 
    warnings.simplefilter("default")
57
 
 
58
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
59
 
logging.basicConfig(level="NOTSET", # Show all messages
60
 
                    format="%(message)s") # Show basic log messages
61
 
 
62
 
logging.captureWarnings(True)   # Show warnings via the logging system
63
 
 
64
 
locale.setlocale(locale.LC_ALL, "")
65
 
 
66
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
 
56
import logging
 
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
67
58
 
68
59
# Some useful constants
69
 
domain = "se.recompile"
70
 
server_interface = domain + ".Mandos"
71
 
client_interface = domain + ".Mandos.Client"
72
 
version = "1.8.16"
 
60
domain = 'se.recompile'
 
61
server_interface = domain + '.Mandos'
 
62
client_interface = domain + '.Mandos.Client'
 
63
version = "1.7.4"
73
64
 
74
65
try:
75
66
    dbus.OBJECT_MANAGER_IFACE
76
67
except AttributeError:
77
68
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
78
69
 
79
 
 
80
70
def isoformat_to_datetime(iso):
81
71
    "Parse an ISO 8601 date string to a datetime.datetime()"
82
72
    if not iso:
90
80
                             int(day),
91
81
                             int(hour),
92
82
                             int(minute),
93
 
                             int(second),            # Whole seconds
94
 
                             int(fraction*1000000))  # Microseconds
95
 
 
96
 
 
97
 
class MandosClientPropertyCache:
 
83
                             int(second),           # Whole seconds
 
84
                             int(fraction*1000000)) # Microseconds
 
85
 
 
86
class MandosClientPropertyCache(object):
98
87
    """This wraps a Mandos Client D-Bus proxy object, caches the
99
88
    properties and calls a hook function when any of them are
100
89
    changed.
101
90
    """
102
91
    def __init__(self, proxy_object=None, properties=None, **kwargs):
103
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
92
        self.proxy = proxy_object # Mandos Client proxy object
104
93
        self.properties = dict() if properties is None else properties
105
94
        self.property_changed_match = (
106
95
            self.proxy.connect_to_signal("PropertiesChanged",
107
96
                                         self.properties_changed,
108
97
                                         dbus.PROPERTIES_IFACE,
109
98
                                         byte_arrays=True))
110
 
 
 
99
        
111
100
        if properties is None:
112
 
            self.properties.update(self.proxy.GetAll(
113
 
                client_interface,
114
 
                dbus_interface=dbus.PROPERTIES_IFACE))
115
 
 
 
101
            self.properties.update(
 
102
                self.proxy.GetAll(client_interface,
 
103
                                  dbus_interface
 
104
                                  = dbus.PROPERTIES_IFACE))
 
105
        
116
106
        super(MandosClientPropertyCache, self).__init__(**kwargs)
117
 
 
 
107
    
118
108
    def properties_changed(self, interface, properties, invalidated):
119
109
        """This is called whenever we get a PropertiesChanged signal
120
110
        It updates the changed properties in the "properties" dict.
122
112
        # Update properties dict with new value
123
113
        if interface == client_interface:
124
114
            self.properties.update(properties)
125
 
 
 
115
    
126
116
    def delete(self):
127
117
        self.property_changed_match.remove()
128
118
 
130
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
131
121
    """A Mandos Client which is visible on the screen.
132
122
    """
133
 
 
 
123
    
134
124
    def __init__(self, server_proxy_object=None, update_hook=None,
135
 
                 delete_hook=None, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
136
126
        # Called on update
137
127
        self.update_hook = update_hook
138
128
        # Called on delete
139
129
        self.delete_hook = delete_hook
140
130
        # Mandos Server proxy object
141
131
        self.server_proxy_object = server_proxy_object
142
 
 
 
132
        # Logger
 
133
        self.logger = logger
 
134
        
143
135
        self._update_timer_callback_tag = None
144
 
 
 
136
        
145
137
        # The widget shown normally
146
138
        self._text_widget = urwid.Text("")
147
139
        # The widget shown when we have focus
149
141
        super(MandosClientWidget, self).__init__(**kwargs)
150
142
        self.update()
151
143
        self.opened = False
152
 
 
 
144
        
153
145
        self.match_objects = (
154
146
            self.proxy.connect_to_signal("CheckerCompleted",
155
147
                                         self.checker_completed,
171
163
                                         self.rejected,
172
164
                                         client_interface,
173
165
                                         byte_arrays=True))
174
 
        log.debug("Created client %s", self.properties["Name"])
175
 
 
 
166
        self.logger('Created client {}'
 
167
                    .format(self.properties["Name"]), level=0)
 
168
    
176
169
    def using_timer(self, flag):
177
170
        """Call this method with True or False when timer should be
178
171
        activated or deactivated.
179
172
        """
180
173
        if flag and self._update_timer_callback_tag is None:
181
174
            # Will update the shown timer value every second
182
 
            self._update_timer_callback_tag = (
183
 
                GLib.timeout_add(1000,
184
 
                                 glib_safely(self.update_timer)))
 
175
            self._update_timer_callback_tag = (GObject.timeout_add
 
176
                                               (1000,
 
177
                                                self.update_timer))
185
178
        elif not (flag or self._update_timer_callback_tag is None):
186
 
            GLib.source_remove(self._update_timer_callback_tag)
 
179
            GObject.source_remove(self._update_timer_callback_tag)
187
180
            self._update_timer_callback_tag = None
188
 
 
 
181
    
189
182
    def checker_completed(self, exitstatus, condition, command):
190
183
        if exitstatus == 0:
191
 
            log.debug('Checker for client %s (command "%s")'
192
 
                      " succeeded", self.properties["Name"], command)
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
193
187
            self.update()
194
188
            return
195
189
        # Checker failed
196
190
        if os.WIFEXITED(condition):
197
 
            log.info('Checker for client %s (command "%s") failed'
198
 
                     " with exit code %d", self.properties["Name"],
199
 
                     command, os.WEXITSTATUS(condition))
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
192
                        ' with exit code {}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WEXITSTATUS(condition)))
200
195
        elif os.WIFSIGNALED(condition):
201
 
            log.info('Checker for client %s (command "%s") was'
202
 
                     " killed by signal %d", self.properties["Name"],
203
 
                     command, os.WTERMSIG(condition))
 
196
            self.logger('Checker for client {} (command "{}") was'
 
197
                        ' killed by signal {}'
 
198
                        .format(self.properties["Name"], command,
 
199
                                os.WTERMSIG(condition)))
204
200
        self.update()
205
 
 
 
201
    
206
202
    def checker_started(self, command):
207
203
        """Server signals that a checker started."""
208
 
        log.debug('Client %s started checker "%s"',
209
 
                  self.properties["Name"], command)
210
 
 
 
204
        self.logger('Client {} started checker "{}"'
 
205
                    .format(self.properties["Name"],
 
206
                            command), level=0)
 
207
    
211
208
    def got_secret(self):
212
 
        log.info("Client %s received its secret",
213
 
                 self.properties["Name"])
214
 
 
 
209
        self.logger('Client {} received its secret'
 
210
                    .format(self.properties["Name"]))
 
211
    
215
212
    def need_approval(self, timeout, default):
216
213
        if not default:
217
 
            message = "Client %s needs approval within %f seconds"
 
214
            message = 'Client {} needs approval within {} seconds'
218
215
        else:
219
 
            message = "Client %s will get its secret in %f seconds"
220
 
        log.info(message, self.properties["Name"], timeout/1000)
221
 
 
 
216
            message = 'Client {} will get its secret in {} seconds'
 
217
        self.logger(message.format(self.properties["Name"],
 
218
                                   timeout/1000))
 
219
    
222
220
    def rejected(self, reason):
223
 
        log.info("Client %s was rejected; reason: %s",
224
 
                 self.properties["Name"], reason)
225
 
 
 
221
        self.logger('Client {} was rejected; reason: {}'
 
222
                    .format(self.properties["Name"], reason))
 
223
    
226
224
    def selectable(self):
227
225
        """Make this a "selectable" widget.
228
226
        This overrides the method from urwid.FlowWidget."""
229
227
        return True
230
 
 
 
228
    
231
229
    def rows(self, maxcolrow, focus=False):
232
230
        """How many rows this widget will occupy might depend on
233
231
        whether we have focus or not.
234
232
        This overrides the method from urwid.FlowWidget"""
235
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
236
 
 
 
234
    
237
235
    def current_widget(self, focus=False):
238
236
        if focus or self.opened:
239
237
            return self._focus_widget
240
238
        return self._widget
241
 
 
 
239
    
242
240
    def update(self):
243
241
        "Called when what is visible on the screen should be updated."
244
242
        # How to add standout mode to a style
245
 
        with_standout = {"normal": "standout",
246
 
                         "bold": "bold-standout",
247
 
                         "underline-blink":
248
 
                         "underline-blink-standout",
249
 
                         "bold-underline-blink":
250
 
                         "bold-underline-blink-standout",
251
 
                         }
252
 
 
 
243
        with_standout = { "normal": "standout",
 
244
                          "bold": "bold-standout",
 
245
                          "underline-blink":
 
246
                              "underline-blink-standout",
 
247
                          "bold-underline-blink":
 
248
                              "bold-underline-blink-standout",
 
249
                          }
 
250
        
253
251
        # Rebuild focus and non-focus widgets using current properties
254
 
 
 
252
        
255
253
        # Base part of a client. Name!
256
 
        base = "{name}: ".format(name=self.properties["Name"])
 
254
        base = '{name}: '.format(name=self.properties["Name"])
257
255
        if not self.properties["Enabled"]:
258
256
            message = "DISABLED"
259
257
            self.using_timer(False)
260
258
        elif self.properties["ApprovalPending"]:
261
 
            timeout = datetime.timedelta(
262
 
                milliseconds=self.properties["ApprovalDelay"])
 
259
            timeout = datetime.timedelta(milliseconds
 
260
                                         = self.properties
 
261
                                         ["ApprovalDelay"])
263
262
            last_approval_request = isoformat_to_datetime(
264
263
                self.properties["LastApprovalRequest"])
265
264
            if last_approval_request is not None:
281
280
                timer = datetime.timedelta(0)
282
281
            else:
283
282
                expires = (datetime.datetime.strptime
284
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
283
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
285
284
                timer = max(expires - datetime.datetime.utcnow(),
286
285
                            datetime.timedelta())
287
 
            message = ("A checker has failed! Time until client"
288
 
                       " gets disabled: {}"
 
286
            message = ('A checker has failed! Time until client'
 
287
                       ' gets disabled: {}'
289
288
                       .format(str(timer).rsplit(".", 1)[0]))
290
289
            self.using_timer(True)
291
290
        else:
292
291
            message = "enabled"
293
292
            self.using_timer(False)
294
293
        self._text = "{}{}".format(base, message)
295
 
 
 
294
        
296
295
        if not urwid.supports_unicode():
297
296
            self._text = self._text.encode("ascii", "replace")
298
297
        textlist = [("normal", self._text)]
308
307
        # Run update hook, if any
309
308
        if self.update_hook is not None:
310
309
            self.update_hook()
311
 
 
 
310
    
312
311
    def update_timer(self):
313
 
        """called by GLib. Will indefinitely loop until
314
 
        GLib.source_remove() on tag is called
315
 
        """
 
312
        """called by GObject. Will indefinitely loop until
 
313
        GObject.source_remove() on tag is called"""
316
314
        self.update()
317
315
        return True             # Keep calling this
318
 
 
 
316
    
319
317
    def delete(self, **kwargs):
320
318
        if self._update_timer_callback_tag is not None:
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
319
            GObject.source_remove(self._update_timer_callback_tag)
322
320
            self._update_timer_callback_tag = None
323
321
        for match in self.match_objects:
324
322
            match.remove()
326
324
        if self.delete_hook is not None:
327
325
            self.delete_hook(self)
328
326
        return super(MandosClientWidget, self).delete(**kwargs)
329
 
 
 
327
    
330
328
    def render(self, maxcolrow, focus=False):
331
329
        """Render differently if we have focus.
332
330
        This overrides the method from urwid.FlowWidget"""
333
331
        return self.current_widget(focus).render(maxcolrow,
334
332
                                                 focus=focus)
335
 
 
 
333
    
336
334
    def keypress(self, maxcolrow, key):
337
335
        """Handle keys.
338
336
        This overrides the method from urwid.FlowWidget"""
339
337
        if key == "+":
340
338
            self.proxy.Set(client_interface, "Enabled",
341
 
                           dbus.Boolean(True), ignore_reply=True,
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
339
                           dbus.Boolean(True), ignore_reply = True,
 
340
                           dbus_interface = dbus.PROPERTIES_IFACE)
343
341
        elif key == "-":
344
342
            self.proxy.Set(client_interface, "Enabled", False,
345
 
                           ignore_reply=True,
346
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
343
                           ignore_reply = True,
 
344
                           dbus_interface = dbus.PROPERTIES_IFACE)
347
345
        elif key == "a":
348
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
349
 
                               dbus_interface=client_interface,
 
347
                               dbus_interface = client_interface,
350
348
                               ignore_reply=True)
351
349
        elif key == "d":
352
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
353
 
                               dbus_interface=client_interface,
 
351
                                  dbus_interface = client_interface,
354
352
                               ignore_reply=True)
355
353
        elif key == "R" or key == "_" or key == "ctrl k":
356
354
            self.server_proxy_object.RemoveClient(self.proxy
358
356
                                                  ignore_reply=True)
359
357
        elif key == "s":
360
358
            self.proxy.Set(client_interface, "CheckerRunning",
361
 
                           dbus.Boolean(True), ignore_reply=True,
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
359
                           dbus.Boolean(True), ignore_reply = True,
 
360
                           dbus_interface = dbus.PROPERTIES_IFACE)
363
361
        elif key == "S":
364
362
            self.proxy.Set(client_interface, "CheckerRunning",
365
 
                           dbus.Boolean(False), ignore_reply=True,
366
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
363
                           dbus.Boolean(False), ignore_reply = True,
 
364
                           dbus_interface = dbus.PROPERTIES_IFACE)
367
365
        elif key == "C":
368
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
366
            self.proxy.CheckedOK(dbus_interface = client_interface,
369
367
                                 ignore_reply=True)
370
368
        # xxx
371
369
#         elif key == "p" or key == "=":
376
374
#             self.open()
377
375
        else:
378
376
            return key
379
 
 
 
377
    
380
378
    def properties_changed(self, interface, properties, invalidated):
381
379
        """Call self.update() if any properties changed.
382
380
        This overrides the method from MandosClientPropertyCache"""
383
 
        old_values = {key: self.properties.get(key)
384
 
                      for key in properties.keys()}
 
381
        old_values = { key: self.properties.get(key)
 
382
                       for key in properties.keys() }
385
383
        super(MandosClientWidget, self).properties_changed(
386
384
            interface, properties, invalidated)
387
385
        if any(old_values[key] != self.properties.get(key)
389
387
            self.update()
390
388
 
391
389
 
392
 
def glib_safely(func, retval=True):
393
 
    def safe_func(*args, **kwargs):
394
 
        try:
395
 
            return func(*args, **kwargs)
396
 
        except Exception:
397
 
            log.exception("")
398
 
            return retval
399
 
    return safe_func
400
 
 
401
 
 
402
390
class ConstrainedListBox(urwid.ListBox):
403
391
    """Like a normal urwid.ListBox, but will consume all "up" or
404
392
    "down" key presses, thus not allowing any containing widgets to
405
393
    use them as an excuse to shift focus away from this widget.
406
394
    """
407
395
    def keypress(self, *args, **kwargs):
408
 
        ret = (super(ConstrainedListBox, self)
409
 
               .keypress(*args, **kwargs))
 
396
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
410
397
        if ret in ("up", "down"):
411
398
            return
412
399
        return ret
413
400
 
414
401
 
415
 
class UserInterface:
 
402
class UserInterface(object):
416
403
    """This is the entire user interface - the whole screen
417
404
    with boxes, lists of client widgets, etc.
418
405
    """
419
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
420
407
        DBusGMainLoop(set_as_default=True)
421
 
 
 
408
        
422
409
        self.screen = urwid.curses_display.Screen()
423
 
 
 
410
        
424
411
        self.screen.register_palette((
425
412
                ("normal",
426
413
                 "default", "default", None),
431
418
                ("standout",
432
419
                 "standout", "default", "standout"),
433
420
                ("bold-underline-blink",
434
 
                 "bold,underline,blink", "default",
435
 
                 "bold,underline,blink"),
 
421
                 "bold,underline,blink", "default", "bold,underline,blink"),
436
422
                ("bold-standout",
437
423
                 "bold,standout", "default", "bold,standout"),
438
424
                ("underline-blink-standout",
442
428
                 "bold,underline,blink,standout", "default",
443
429
                 "bold,underline,blink,standout"),
444
430
                ))
445
 
 
 
431
        
446
432
        if urwid.supports_unicode():
447
 
            self.divider = "─"  # \u2500
 
433
            self.divider = "─" # \u2500
 
434
            #self.divider = "━" # \u2501
448
435
        else:
449
 
            self.divider = "_"  # \u005f
450
 
 
 
436
            #self.divider = "-" # \u002d
 
437
            self.divider = "_" # \u005f
 
438
        
451
439
        self.screen.start()
452
 
 
 
440
        
453
441
        self.size = self.screen.get_cols_rows()
454
 
 
 
442
        
455
443
        self.clients = urwid.SimpleListWalker([])
456
444
        self.clients_dict = {}
457
 
 
 
445
        
458
446
        # We will add Text widgets to this list
459
 
        self.log = urwid.SimpleListWalker([])
 
447
        self.log = []
460
448
        self.max_log_length = max_log_length
461
 
 
 
449
        
 
450
        self.log_level = log_level
 
451
        
462
452
        # We keep a reference to the log widget so we can remove it
463
453
        # from the ListWalker without it getting destroyed
464
454
        self.logbox = ConstrainedListBox(self.log)
465
 
 
 
455
        
466
456
        # This keeps track of whether self.uilist currently has
467
457
        # self.logbox in it or not
468
458
        self.log_visible = True
469
459
        self.log_wrap = "any"
470
 
 
471
 
        self.loghandler = UILogHandler(self)
472
 
 
 
460
        
473
461
        self.rebuild()
474
 
        self.add_log_line(("bold",
475
 
                           "Mandos Monitor version " + version))
476
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
477
 
 
478
 
        self.busname = domain + ".Mandos"
479
 
        self.main_loop = GLib.MainLoop()
480
 
 
481
 
    def client_not_found(self, key_id, address):
482
 
        log.info("Client with address %s and key ID %s could"
483
 
                 " not be found", address, key_id)
484
 
 
 
462
        self.log_message_raw(("bold",
 
463
                              "Mandos Monitor version " + version))
 
464
        self.log_message_raw(("bold",
 
465
                              "q: Quit  ?: Help"))
 
466
        
 
467
        self.busname = domain + '.Mandos'
 
468
        self.main_loop = GObject.MainLoop()
 
469
    
 
470
    def client_not_found(self, fingerprint, address):
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
 
474
    
485
475
    def rebuild(self):
486
476
        """This rebuilds the User Interface.
487
477
        Call this when the widget layout needs to change"""
488
478
        self.uilist = []
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
479
        #self.uilist.append(urwid.ListBox(self.clients))
490
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
491
481
                                                          clients),
492
 
                                       # header=urwid.Divider(),
 
482
                                       #header=urwid.Divider(),
493
483
                                       header=None,
494
 
                                       footer=urwid.Divider(
495
 
                                           div_char=self.divider)))
 
484
                                       footer=
 
485
                                       urwid.Divider(div_char=
 
486
                                                     self.divider)))
496
487
        if self.log_visible:
497
488
            self.uilist.append(self.logbox)
498
489
        self.topwidget = urwid.Pile(self.uilist)
499
 
 
500
 
    def add_log_line(self, markup):
 
490
    
 
491
    def log_message(self, message, level=1):
 
492
        """Log message formatted with timestamp"""
 
493
        if level < self.log_level:
 
494
            return
 
495
        timestamp = datetime.datetime.now().isoformat()
 
496
        self.log_message_raw("{}: {}".format(timestamp, message),
 
497
                             level=level)
 
498
    
 
499
    def log_message_raw(self, markup, level=1):
 
500
        """Add a log message to the log buffer."""
 
501
        if level < self.log_level:
 
502
            return
501
503
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if self.max_log_length:
503
 
            if len(self.log) > self.max_log_length:
504
 
                del self.log[0:(len(self.log) - self.max_log_length)]
505
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
504
        if (self.max_log_length
 
505
            and len(self.log) > self.max_log_length):
 
506
            del self.log[0:len(self.log)-self.max_log_length-1]
 
507
        self.logbox.set_focus(len(self.logbox.body.contents),
506
508
                              coming_from="above")
507
509
        self.refresh()
508
 
 
 
510
    
509
511
    def toggle_log_display(self):
510
512
        """Toggle visibility of the log buffer."""
511
513
        self.log_visible = not self.log_visible
512
514
        self.rebuild()
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
514
 
 
 
515
        self.log_message("Log visibility changed to: {}"
 
516
                         .format(self.log_visible), level=0)
 
517
    
515
518
    def change_log_display(self):
516
519
        """Change type of log display.
517
520
        Currently, this toggles wrapping of text lines."""
521
524
            self.log_wrap = "clip"
522
525
        for textwidget in self.log:
523
526
            textwidget.set_wrap_mode(self.log_wrap)
524
 
        log.debug("Wrap mode: %s", self.log_wrap)
525
 
 
 
527
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
528
                         level=0)
 
529
    
526
530
    def find_and_remove_client(self, path, interfaces):
527
531
        """Find a client by its object path and remove it.
528
 
 
 
532
        
529
533
        This is connected to the InterfacesRemoved signal from the
530
534
        Mandos server object."""
531
535
        if client_interface not in interfaces:
535
539
            client = self.clients_dict[path]
536
540
        except KeyError:
537
541
            # not found?
538
 
            log.warning("Unknown client %s removed", path)
 
542
            self.log_message("Unknown client {!r} removed"
 
543
                             .format(path))
539
544
            return
540
545
        client.delete()
541
 
 
 
546
    
542
547
    def add_new_client(self, path, ifs_and_props):
543
548
        """Find a client by its object path and remove it.
544
 
 
 
549
        
545
550
        This is connected to the InterfacesAdded signal from the
546
551
        Mandos server object.
547
552
        """
549
554
            # Not a Mandos client object; ignore
550
555
            return
551
556
        client_proxy_object = self.bus.get_object(self.busname, path)
552
 
        self.add_client(MandosClientWidget(
553
 
            server_proxy_object=self.mandos_serv,
554
 
            proxy_object=client_proxy_object,
555
 
            update_hook=self.refresh,
556
 
            delete_hook=self.remove_client,
557
 
            properties=dict(ifs_and_props[client_interface])),
 
557
        self.add_client(MandosClientWidget(server_proxy_object
 
558
                                           =self.mandos_serv,
 
559
                                           proxy_object
 
560
                                           =client_proxy_object,
 
561
                                           update_hook
 
562
                                           =self.refresh,
 
563
                                           delete_hook
 
564
                                           =self.remove_client,
 
565
                                           logger
 
566
                                           =self.log_message,
 
567
                                           properties
 
568
                                           = dict(ifs_and_props[
 
569
                                               client_interface])),
558
570
                        path=path)
559
 
 
 
571
    
560
572
    def add_client(self, client, path=None):
561
573
        self.clients.append(client)
562
574
        if path is None:
564
576
        self.clients_dict[path] = client
565
577
        self.clients.sort(key=lambda c: c.properties["Name"])
566
578
        self.refresh()
567
 
 
 
579
    
568
580
    def remove_client(self, client, path=None):
569
581
        self.clients.remove(client)
570
582
        if path is None:
571
583
            path = client.proxy.object_path
572
584
        del self.clients_dict[path]
573
585
        self.refresh()
574
 
 
 
586
    
575
587
    def refresh(self):
576
588
        """Redraw the screen"""
577
589
        canvas = self.topwidget.render(self.size, focus=True)
578
590
        self.screen.draw_screen(self.size, canvas)
579
 
 
 
591
    
580
592
    def run(self):
581
593
        """Start the main loop and exit when it's done."""
582
 
        log.addHandler(self.loghandler)
583
 
        self.orig_log_propagate = log.propagate
584
 
        log.propagate = False
585
 
        self.orig_log_level = log.level
586
 
        log.setLevel("INFO")
587
594
        self.bus = dbus.SystemBus()
588
595
        mandos_dbus_objc = self.bus.get_object(
589
596
            self.busname, "/", follow_name_owner_changes=True)
590
 
        self.mandos_serv = dbus.Interface(
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
597
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
598
                                          dbus_interface
 
599
                                          = server_interface)
592
600
        try:
593
601
            mandos_clients = (self.mandos_serv
594
602
                              .GetAllClientsWithProperties())
595
603
            if not mandos_clients:
596
 
                log.warning("Note: Server has no clients.")
 
604
                self.log_message_raw(("bold", "Note: Server has no clients."))
597
605
        except dbus.exceptions.DBusException:
598
 
            log.warning("Note: No Mandos server running.")
 
606
            self.log_message_raw(("bold", "Note: No Mandos server running."))
599
607
            mandos_clients = dbus.Dictionary()
600
 
 
 
608
        
601
609
        (self.mandos_serv
602
610
         .connect_to_signal("InterfacesRemoved",
603
611
                            self.find_and_remove_client,
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
612
                            dbus_interface
 
613
                            = dbus.OBJECT_MANAGER_IFACE,
605
614
                            byte_arrays=True))
606
615
        (self.mandos_serv
607
616
         .connect_to_signal("InterfacesAdded",
608
617
                            self.add_new_client,
609
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
618
                            dbus_interface
 
619
                            = dbus.OBJECT_MANAGER_IFACE,
610
620
                            byte_arrays=True))
611
621
        (self.mandos_serv
612
622
         .connect_to_signal("ClientNotFound",
616
626
        for path, client in mandos_clients.items():
617
627
            client_proxy_object = self.bus.get_object(self.busname,
618
628
                                                      path)
619
 
            self.add_client(MandosClientWidget(
620
 
                server_proxy_object=self.mandos_serv,
621
 
                proxy_object=client_proxy_object,
622
 
                properties=client,
623
 
                update_hook=self.refresh,
624
 
                delete_hook=self.remove_client),
 
629
            self.add_client(MandosClientWidget(server_proxy_object
 
630
                                               =self.mandos_serv,
 
631
                                               proxy_object
 
632
                                               =client_proxy_object,
 
633
                                               properties=client,
 
634
                                               update_hook
 
635
                                               =self.refresh,
 
636
                                               delete_hook
 
637
                                               =self.remove_client,
 
638
                                               logger
 
639
                                               =self.log_message),
625
640
                            path=path)
626
 
 
 
641
        
627
642
        self.refresh()
628
 
        self._input_callback_tag = (
629
 
            GLib.io_add_watch(
630
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
631
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
632
 
                glib_safely(self.process_input)))
 
643
        self._input_callback_tag = (GObject.io_add_watch
 
644
                                    (sys.stdin.fileno(),
 
645
                                     GObject.IO_IN,
 
646
                                     self.process_input))
633
647
        self.main_loop.run()
634
648
        # Main loop has finished, we should close everything now
635
 
        GLib.source_remove(self._input_callback_tag)
636
 
        with warnings.catch_warnings():
637
 
            warnings.simplefilter("ignore", BytesWarning)
638
 
            self.screen.stop()
639
 
 
 
649
        GObject.source_remove(self._input_callback_tag)
 
650
        self.screen.stop()
 
651
    
640
652
    def stop(self):
641
653
        self.main_loop.quit()
642
 
        log.removeHandler(self.loghandler)
643
 
        log.propagate = self.orig_log_propagate
644
 
 
 
654
    
645
655
    def process_input(self, source, condition):
646
656
        keys = self.screen.get_input()
647
 
        translations = {"ctrl n": "down",       # Emacs
648
 
                        "ctrl p": "up",         # Emacs
649
 
                        "ctrl v": "page down",  # Emacs
650
 
                        "meta v": "page up",    # Emacs
651
 
                        " ": "page down",       # less
652
 
                        "f": "page down",       # less
653
 
                        "b": "page up",         # less
654
 
                        "j": "down",            # vi
655
 
                        "k": "up",              # vi
656
 
                        }
 
657
        translations = { "ctrl n": "down",      # Emacs
 
658
                         "ctrl p": "up",        # Emacs
 
659
                         "ctrl v": "page down", # Emacs
 
660
                         "meta v": "page up",   # Emacs
 
661
                         " ": "page down",      # less
 
662
                         "f": "page down",      # less
 
663
                         "b": "page up",        # less
 
664
                         "j": "down",           # vi
 
665
                         "k": "up",             # vi
 
666
                         }
657
667
        for key in keys:
658
668
            try:
659
669
                key = translations[key]
660
670
            except KeyError:    # :-)
661
671
                pass
662
 
 
 
672
            
663
673
            if key == "q" or key == "Q":
664
674
                self.stop()
665
675
                break
679
689
                if not self.log_visible:
680
690
                    self.log_visible = True
681
691
                    self.rebuild()
682
 
                self.add_log_line(("bold",
683
 
                                   "  ".join(("q: Quit",
684
 
                                              "?: Help",
685
 
                                              "l: Log window toggle",
686
 
                                              "TAB: Switch window",
687
 
                                              "w: Wrap (log lines)",
688
 
                                              "v: Toggle verbose log",
689
 
                                   ))))
690
 
                self.add_log_line(("bold",
691
 
                                   "  ".join(("Clients:",
692
 
                                              "+: Enable",
693
 
                                              "-: Disable",
694
 
                                              "R: Remove",
695
 
                                              "s: Start new checker",
696
 
                                              "S: Stop checker",
697
 
                                              "C: Checker OK",
698
 
                                              "a: Approve",
699
 
                                              "d: Deny",
700
 
                                   ))))
 
692
                self.log_message_raw(("bold",
 
693
                                      "  ".
 
694
                                      join(("q: Quit",
 
695
                                            "?: Help",
 
696
                                            "l: Log window toggle",
 
697
                                            "TAB: Switch window",
 
698
                                            "w: Wrap (log lines)",
 
699
                                            "v: Toggle verbose log",
 
700
                                            ))))
 
701
                self.log_message_raw(("bold",
 
702
                                      "  "
 
703
                                      .join(("Clients:",
 
704
                                             "+: Enable",
 
705
                                             "-: Disable",
 
706
                                             "R: Remove",
 
707
                                             "s: Start new checker",
 
708
                                             "S: Stop checker",
 
709
                                             "C: Checker OK",
 
710
                                             "a: Approve",
 
711
                                             "d: Deny"))))
701
712
                self.refresh()
702
713
            elif key == "tab":
703
714
                if self.topwidget.get_focus() is self.logbox:
706
717
                    self.topwidget.set_focus(self.logbox)
707
718
                self.refresh()
708
719
            elif key == "v":
709
 
                if log.level < logging.INFO:
710
 
                    log.setLevel(logging.INFO)
711
 
                    log.info("Verbose mode: Off")
 
720
                if self.log_level == 0:
 
721
                    self.log_level = 1
 
722
                    self.log_message("Verbose mode: Off")
712
723
                else:
713
 
                    log.setLevel(logging.NOTSET)
714
 
                    log.info("Verbose mode: On")
715
 
            # elif (key == "end" or key == "meta >" or key == "G"
716
 
            #       or key == ">"):
717
 
            #     pass            # xxx end-of-buffer
718
 
            # elif (key == "home" or key == "meta <" or key == "g"
719
 
            #       or key == "<"):
720
 
            #     pass            # xxx beginning-of-buffer
721
 
            # elif key == "ctrl e" or key == "$":
722
 
            #     pass            # xxx move-end-of-line
723
 
            # elif key == "ctrl a" or key == "^":
724
 
            #     pass            # xxx move-beginning-of-line
725
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
726
 
            #     pass            # xxx left
727
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
728
 
            #     pass            # xxx right
729
 
            # elif key == "a":
730
 
            #     pass            # scroll up log
731
 
            # elif key == "z":
732
 
            #     pass            # scroll down log
 
724
                    self.log_level = 0
 
725
                    self.log_message("Verbose mode: On")
 
726
            #elif (key == "end" or key == "meta >" or key == "G"
 
727
            #      or key == ">"):
 
728
            #    pass            # xxx end-of-buffer
 
729
            #elif (key == "home" or key == "meta <" or key == "g"
 
730
            #      or key == "<"):
 
731
            #    pass            # xxx beginning-of-buffer
 
732
            #elif key == "ctrl e" or key == "$":
 
733
            #    pass            # xxx move-end-of-line
 
734
            #elif key == "ctrl a" or key == "^":
 
735
            #    pass            # xxx move-beginning-of-line
 
736
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
737
            #    pass            # xxx left
 
738
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
739
            #    pass            # xxx right
 
740
            #elif key == "a":
 
741
            #    pass            # scroll up log
 
742
            #elif key == "z":
 
743
            #    pass            # scroll down log
733
744
            elif self.topwidget.selectable():
734
745
                self.topwidget.keypress(self.size, key)
735
746
                self.refresh()
736
747
        return True
737
748
 
738
 
 
739
 
class UILogHandler(logging.Handler):
740
 
    def __init__(self, ui, *args, **kwargs):
741
 
        self.ui = ui
742
 
        super(UILogHandler, self).__init__(*args, **kwargs)
743
 
        self.setFormatter(
744
 
            logging.Formatter("%(asctime)s: %(message)s"))
745
 
    def emit(self, record):
746
 
        msg = self.format(record)
747
 
        if record.levelno > logging.INFO:
748
 
            msg = ("bold", msg)
749
 
        self.ui.add_log_line(msg)
750
 
 
751
 
 
752
749
ui = UserInterface()
753
750
try:
754
751
    ui.run()
755
752
except KeyboardInterrupt:
756
 
    with warnings.catch_warnings():
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
758
 
        ui.screen.stop()
759
 
except Exception:
760
 
    with warnings.catch_warnings():
761
 
        warnings.filterwarnings("ignore", "", BytesWarning)
762
 
        ui.screen.stop()
 
753
    ui.screen.stop()
 
754
except Exception as e:
 
755
    ui.log_message(str(e))
 
756
    ui.screen.stop()
763
757
    raise