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Viewing changes to mandos-monitor

  • Committer: Teddy Hogeborn
  • Date: 2017-02-21 21:42:08 UTC
  • Revision ID: teddy@recompile.se-20170221214208-09wu1p4l2hjhqfoj
Use "read -r" in shell scripts to avoid backslash escapes

* initramfs-tools-hook: Use "read -r" to read filenames from network
  hook given the "files" argument.
* initramfs-tools-script: Use "read -e" when parsing
  "/conf/conf.d/cryptroot".
* mandos-keygen (keygen): Use "read -r" when reading passphrase.

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mandos-monitor
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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 © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 Björn Påhlsson
8
 
# 
 
5
#
 
6
# Copyright © 2009-2016 Teddy Hogeborn
 
7
# Copyright © 2009-2016 Björn Påhlsson
 
8
#
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
11
11
# the Free Software Foundation, either version 3 of the License, or
15
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
16
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
17
#     GNU General Public License for more details.
18
 
# 
 
18
#
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21
 
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
23
 
# 
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
#
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
#
24
25
 
25
26
from __future__ import (division, absolute_import, print_function,
26
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
27
32
 
28
33
import sys
29
34
import os
30
 
import signal
31
35
 
32
36
import datetime
33
37
 
35
39
import urwid
36
40
 
37
41
from dbus.mainloop.glib import DBusGMainLoop
38
 
import gobject
 
42
from gi.repository import GLib
39
43
 
40
44
import dbus
41
45
 
42
 
import UserList
43
 
 
44
46
import locale
45
47
 
 
48
import logging
 
49
 
 
50
if sys.version_info.major == 2:
 
51
    str = unicode
 
52
 
46
53
locale.setlocale(locale.LC_ALL, '')
47
54
 
48
 
import logging
49
55
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
50
56
 
51
57
# Some useful constants
52
58
domain = 'se.recompile'
53
59
server_interface = domain + '.Mandos'
54
60
client_interface = domain + '.Mandos.Client'
55
 
version = "1.3.1"
56
 
 
57
 
# Always run in monochrome mode
58
 
urwid.curses_display.curses.has_colors = lambda : False
59
 
 
60
 
# Urwid doesn't support blinking, but we want it.  Since we have no
61
 
# use for underline on its own, we make underline also always blink.
62
 
urwid.curses_display.curses.A_UNDERLINE |= (
63
 
    urwid.curses_display.curses.A_BLINK)
 
61
version = "1.7.14"
 
62
 
 
63
try:
 
64
    dbus.OBJECT_MANAGER_IFACE
 
65
except AttributeError:
 
66
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
67
 
64
68
 
65
69
def isoformat_to_datetime(iso):
66
70
    "Parse an ISO 8601 date string to a datetime.datetime()"
75
79
                             int(day),
76
80
                             int(hour),
77
81
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
 
82
                             int(second),            # Whole seconds
 
83
                             int(fraction*1000000))  # Microseconds
 
84
 
80
85
 
81
86
class MandosClientPropertyCache(object):
82
87
    """This wraps a Mandos Client D-Bus proxy object, caches the
83
88
    properties and calls a hook function when any of them are
84
89
    changed.
85
90
    """
86
 
    def __init__(self, proxy_object=None, *args, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
91
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
92
        self.proxy = proxy_object  # Mandos Client proxy object
 
93
        self.properties = dict() if properties is None else properties
90
94
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
93
 
                                         client_interface,
 
95
            self.proxy.connect_to_signal("PropertiesChanged",
 
96
                                         self.properties_changed,
 
97
                                         dbus.PROPERTIES_IFACE,
94
98
                                         byte_arrays=True))
95
 
        
96
 
        self.properties.update(
97
 
            self.proxy.GetAll(client_interface,
98
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
99
 
 
100
 
        #XXX This breaks good super behaviour
101
 
#        super(MandosClientPropertyCache, self).__init__(
102
 
#            *args, **kwargs)
103
 
    
104
 
    def property_changed(self, property=None, value=None):
105
 
        """This is called whenever we get a PropertyChanged signal
106
 
        It updates the changed property in the "properties" dict.
 
99
 
 
100
        if properties is None:
 
101
            self.properties.update(self.proxy.GetAll(
 
102
                client_interface,
 
103
                dbus_interface=dbus.PROPERTIES_IFACE))
 
104
 
 
105
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
106
 
 
107
    def properties_changed(self, interface, properties, invalidated):
 
108
        """This is called whenever we get a PropertiesChanged signal
 
109
        It updates the changed properties in the "properties" dict.
107
110
        """
108
111
        # Update properties dict with new value
109
 
        self.properties[property] = value
110
 
    
111
 
    def delete(self, *args, **kwargs):
 
112
        if interface == client_interface:
 
113
            self.properties.update(properties)
 
114
 
 
115
    def delete(self):
112
116
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
117
 
116
118
 
117
119
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
118
120
    """A Mandos Client which is visible on the screen.
119
121
    """
120
 
    
 
122
 
121
123
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
124
                 delete_hook=None, logger=None, **kwargs):
123
125
        # Called on update
124
126
        self.update_hook = update_hook
125
127
        # Called on delete
128
130
        self.server_proxy_object = server_proxy_object
129
131
        # Logger
130
132
        self.logger = logger
131
 
        
 
133
 
132
134
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
 
        
 
135
 
136
136
        # The widget shown normally
137
137
        self._text_widget = urwid.Text("")
138
138
        # The widget shown when we have focus
139
139
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
140
        super(MandosClientWidget, self).__init__(**kwargs)
143
141
        self.update()
144
142
        self.opened = False
145
 
        
146
 
        last_checked_ok = isoformat_to_datetime(self.properties
147
 
                                                ["LastCheckedOK"])
148
 
        if last_checked_ok is None:
149
 
            self.last_checker_failed = True
150
 
        else:
151
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
152
 
                                         - last_checked_ok)
153
 
                                        > datetime.timedelta
154
 
                                        (milliseconds=
155
 
                                         self.properties
156
 
                                         ["Interval"]))
157
 
        
158
 
        if self.last_checker_failed:
159
 
            self.using_timer(True)
160
 
        
161
 
        if self.need_approval:
162
 
            self.using_timer(True)
163
 
        
 
143
 
164
144
        self.match_objects = (
165
145
            self.proxy.connect_to_signal("CheckerCompleted",
166
146
                                         self.checker_completed,
182
162
                                         self.rejected,
183
163
                                         client_interface,
184
164
                                         byte_arrays=True))
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
186
 
    
187
 
    def property_changed(self, property=None, value=None):
188
 
        super(self, MandosClientWidget).property_changed(property,
189
 
                                                         value)
190
 
        if property == "ApprovalPending":
191
 
            using_timer(bool(value))
192
 
        
 
165
        self.logger('Created client {}'
 
166
                    .format(self.properties["Name"]), level=0)
 
167
 
193
168
    def using_timer(self, flag):
194
169
        """Call this method with True or False when timer should be
195
170
        activated or deactivated.
196
171
        """
197
 
        old = self._update_timer_callback_lock
198
 
        if flag:
199
 
            self._update_timer_callback_lock += 1
200
 
        else:
201
 
            self._update_timer_callback_lock -= 1
202
 
        if old == 0 and self._update_timer_callback_lock:
 
172
        if flag and self._update_timer_callback_tag is None:
203
173
            # Will update the shown timer value every second
204
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
174
            self._update_timer_callback_tag = (GLib.timeout_add
205
175
                                               (1000,
206
176
                                                self.update_timer))
207
 
        elif old and self._update_timer_callback_lock == 0:
208
 
            gobject.source_remove(self._update_timer_callback_tag)
 
177
        elif not (flag or self._update_timer_callback_tag is None):
 
178
            GLib.source_remove(self._update_timer_callback_tag)
209
179
            self._update_timer_callback_tag = None
210
 
    
 
180
 
211
181
    def checker_completed(self, exitstatus, condition, command):
212
182
        if exitstatus == 0:
213
 
            if self.last_checker_failed:
214
 
                self.last_checker_failed = False
215
 
                self.using_timer(False)
216
 
            #self.logger('Checker for client %s (command "%s")'
217
 
            #            ' was successful'
218
 
            #            % (self.properties["Name"], command))
 
183
            self.logger('Checker for client {} (command "{}")'
 
184
                        ' succeeded'.format(self.properties["Name"],
 
185
                                            command), level=0)
219
186
            self.update()
220
187
            return
221
188
        # Checker failed
222
 
        if not self.last_checker_failed:
223
 
            self.last_checker_failed = True
224
 
            self.using_timer(True)
225
189
        if os.WIFEXITED(condition):
226
 
            self.logger('Checker for client %s (command "%s")'
227
 
                        ' failed with exit code %s'
228
 
                        % (self.properties["Name"], command,
229
 
                           os.WEXITSTATUS(condition)))
 
190
            self.logger('Checker for client {} (command "{}") failed'
 
191
                        ' with exit code {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                os.WEXITSTATUS(condition)))
230
194
        elif os.WIFSIGNALED(condition):
231
 
            self.logger('Checker for client %s (command "%s")'
232
 
                        ' was killed by signal %s'
233
 
                        % (self.properties["Name"], command,
234
 
                           os.WTERMSIG(condition)))
235
 
        elif os.WCOREDUMP(condition):
236
 
            self.logger('Checker for client %s (command "%s")'
237
 
                        ' dumped core'
238
 
                        % (self.properties["Name"], command))
239
 
        else:
240
 
            self.logger('Checker for client %s completed'
241
 
                        ' mysteriously')
 
195
            self.logger('Checker for client {} (command "{}") was'
 
196
                        ' killed by signal {}'
 
197
                        .format(self.properties["Name"], command,
 
198
                                os.WTERMSIG(condition)))
242
199
        self.update()
243
 
    
 
200
 
244
201
    def checker_started(self, command):
245
 
        #self.logger('Client %s started checker "%s"'
246
 
        #            % (self.properties["Name"], unicode(command)))
247
 
        pass
248
 
    
 
202
        """Server signals that a checker started."""
 
203
        self.logger('Client {} started checker "{}"'
 
204
                    .format(self.properties["Name"],
 
205
                            command), level=0)
 
206
 
249
207
    def got_secret(self):
250
 
        self.last_checker_failed = False
251
 
        self.logger('Client %s received its secret'
252
 
                    % self.properties["Name"])
253
 
    
 
208
        self.logger('Client {} received its secret'
 
209
                    .format(self.properties["Name"]))
 
210
 
254
211
    def need_approval(self, timeout, default):
255
212
        if not default:
256
 
            message = 'Client %s needs approval within %s seconds'
 
213
            message = 'Client {} needs approval within {} seconds'
257
214
        else:
258
 
            message = 'Client %s will get its secret in %s seconds'
259
 
        self.logger(message
260
 
                    % (self.properties["Name"], timeout/1000))
261
 
        self.using_timer(True)
262
 
    
 
215
            message = 'Client {} will get its secret in {} seconds'
 
216
        self.logger(message.format(self.properties["Name"],
 
217
                                   timeout/1000))
 
218
 
263
219
    def rejected(self, reason):
264
 
        self.logger('Client %s was rejected; reason: %s'
265
 
                    % (self.properties["Name"], reason))
266
 
    
 
220
        self.logger('Client {} was rejected; reason: {}'
 
221
                    .format(self.properties["Name"], reason))
 
222
 
267
223
    def selectable(self):
268
224
        """Make this a "selectable" widget.
269
225
        This overrides the method from urwid.FlowWidget."""
270
226
        return True
271
 
    
 
227
 
272
228
    def rows(self, maxcolrow, focus=False):
273
229
        """How many rows this widget will occupy might depend on
274
230
        whether we have focus or not.
275
231
        This overrides the method from urwid.FlowWidget"""
276
232
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
277
 
    
 
233
 
278
234
    def current_widget(self, focus=False):
279
235
        if focus or self.opened:
280
236
            return self._focus_widget
281
237
        return self._widget
282
 
    
 
238
 
283
239
    def update(self):
284
240
        "Called when what is visible on the screen should be updated."
285
241
        # How to add standout mode to a style
286
 
        with_standout = { "normal": "standout",
287
 
                          "bold": "bold-standout",
288
 
                          "underline-blink":
289
 
                              "underline-blink-standout",
290
 
                          "bold-underline-blink":
291
 
                              "bold-underline-blink-standout",
292
 
                          }
 
242
        with_standout = {"normal": "standout",
 
243
                         "bold": "bold-standout",
 
244
                         "underline-blink":
 
245
                         "underline-blink-standout",
 
246
                         "bold-underline-blink":
 
247
                         "bold-underline-blink-standout",
 
248
                         }
293
249
 
294
250
        # Rebuild focus and non-focus widgets using current properties
295
251
 
296
252
        # Base part of a client. Name!
297
 
        base = ('%(name)s: '
298
 
                      % {"name": self.properties["Name"]})
 
253
        base = '{name}: '.format(name=self.properties["Name"])
299
254
        if not self.properties["Enabled"]:
300
255
            message = "DISABLED"
 
256
            self.using_timer(False)
301
257
        elif self.properties["ApprovalPending"]:
302
 
            timeout = datetime.timedelta(milliseconds
303
 
                                         = self.properties
304
 
                                         ["ApprovalDelay"])
 
258
            timeout = datetime.timedelta(
 
259
                milliseconds=self.properties["ApprovalDelay"])
305
260
            last_approval_request = isoformat_to_datetime(
306
261
                self.properties["LastApprovalRequest"])
307
262
            if last_approval_request is not None:
308
 
                timer = timeout - (datetime.datetime.utcnow()
309
 
                                   - last_approval_request)
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
                                       - last_approval_request),
 
265
                            datetime.timedelta())
310
266
            else:
311
267
                timer = datetime.timedelta()
312
268
            if self.properties["ApprovedByDefault"]:
313
 
                message = "Approval in %s. (d)eny?"
 
269
                message = "Approval in {}. (d)eny?"
314
270
            else:
315
 
                message = "Denial in %s. (a)pprove?"
316
 
            message = message % unicode(timer).rsplit(".", 1)[0]
317
 
        elif self.last_checker_failed:
318
 
            # When checker has failed, print a timer until client expires
 
271
                message = "Denial in {}. (a)pprove?"
 
272
            message = message.format(str(timer).rsplit(".", 1)[0])
 
273
            self.using_timer(True)
 
274
        elif self.properties["LastCheckerStatus"] != 0:
 
275
            # When checker has failed, show timer until client expires
319
276
            expires = self.properties["Expires"]
320
277
            if expires == "":
321
278
                timer = datetime.timedelta(0)
322
279
            else:
323
 
                expires = datetime.datetime.strptime(expires,
324
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
325
 
                timer = expires - datetime.datetime.utcnow()
 
280
                expires = (datetime.datetime.strptime
 
281
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
282
                timer = max(expires - datetime.datetime.utcnow(),
 
283
                            datetime.timedelta())
326
284
            message = ('A checker has failed! Time until client'
327
 
                       ' gets disabled: %s'
328
 
                           % unicode(timer).rsplit(".", 1)[0])
 
285
                       ' gets disabled: {}'
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
            self.using_timer(True)
329
288
        else:
330
289
            message = "enabled"
331
 
        self._text = "%s%s" % (base, message)
332
 
            
 
290
            self.using_timer(False)
 
291
        self._text = "{}{}".format(base, message)
 
292
 
333
293
        if not urwid.supports_unicode():
334
294
            self._text = self._text.encode("ascii", "replace")
335
295
        textlist = [("normal", self._text)]
345
305
        # Run update hook, if any
346
306
        if self.update_hook is not None:
347
307
            self.update_hook()
348
 
    
 
308
 
349
309
    def update_timer(self):
350
 
        """called by gobject. Will indefinitely loop until
351
 
        gobject.source_remove() on tag is called"""
 
310
        """called by GLib. Will indefinitely loop until
 
311
        GLib.source_remove() on tag is called
 
312
        """
352
313
        self.update()
353
314
        return True             # Keep calling this
354
 
    
355
 
    def delete(self, *args, **kwargs):
 
315
 
 
316
    def delete(self, **kwargs):
356
317
        if self._update_timer_callback_tag is not None:
357
 
            gobject.source_remove(self._update_timer_callback_tag)
 
318
            GLib.source_remove(self._update_timer_callback_tag)
358
319
            self._update_timer_callback_tag = None
359
320
        for match in self.match_objects:
360
321
            match.remove()
361
322
        self.match_objects = ()
362
323
        if self.delete_hook is not None:
363
324
            self.delete_hook(self)
364
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
365
 
    
 
325
        return super(MandosClientWidget, self).delete(**kwargs)
 
326
 
366
327
    def render(self, maxcolrow, focus=False):
367
328
        """Render differently if we have focus.
368
329
        This overrides the method from urwid.FlowWidget"""
369
330
        return self.current_widget(focus).render(maxcolrow,
370
331
                                                 focus=focus)
371
 
    
 
332
 
372
333
    def keypress(self, maxcolrow, key):
373
334
        """Handle keys.
374
335
        This overrides the method from urwid.FlowWidget"""
375
336
        if key == "+":
376
 
            self.proxy.Enable(dbus_interface = client_interface,
377
 
                              ignore_reply=True)
 
337
            self.proxy.Set(client_interface, "Enabled",
 
338
                           dbus.Boolean(True), ignore_reply=True,
 
339
                           dbus_interface=dbus.PROPERTIES_IFACE)
378
340
        elif key == "-":
379
 
            self.proxy.Disable(dbus_interface = client_interface,
380
 
                               ignore_reply=True)
 
341
            self.proxy.Set(client_interface, "Enabled", False,
 
342
                           ignore_reply=True,
 
343
                           dbus_interface=dbus.PROPERTIES_IFACE)
381
344
        elif key == "a":
382
345
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
383
 
                               dbus_interface = client_interface,
 
346
                               dbus_interface=client_interface,
384
347
                               ignore_reply=True)
385
348
        elif key == "d":
386
349
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
387
 
                                  dbus_interface = client_interface,
 
350
                               dbus_interface=client_interface,
388
351
                               ignore_reply=True)
389
352
        elif key == "R" or key == "_" or key == "ctrl k":
390
353
            self.server_proxy_object.RemoveClient(self.proxy
391
354
                                                  .object_path,
392
355
                                                  ignore_reply=True)
393
356
        elif key == "s":
394
 
            self.proxy.StartChecker(dbus_interface = client_interface,
395
 
                                    ignore_reply=True)
 
357
            self.proxy.Set(client_interface, "CheckerRunning",
 
358
                           dbus.Boolean(True), ignore_reply=True,
 
359
                           dbus_interface=dbus.PROPERTIES_IFACE)
396
360
        elif key == "S":
397
 
            self.proxy.StopChecker(dbus_interface = client_interface,
398
 
                                   ignore_reply=True)
 
361
            self.proxy.Set(client_interface, "CheckerRunning",
 
362
                           dbus.Boolean(False), ignore_reply=True,
 
363
                           dbus_interface=dbus.PROPERTIES_IFACE)
399
364
        elif key == "C":
400
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
            self.proxy.CheckedOK(dbus_interface=client_interface,
401
366
                                 ignore_reply=True)
402
367
        # xxx
403
368
#         elif key == "p" or key == "=":
408
373
#             self.open()
409
374
        else:
410
375
            return key
411
 
    
412
 
    def property_changed(self, property=None, value=None,
413
 
                         *args, **kwargs):
414
 
        """Call self.update() if old value is not new value.
 
376
 
 
377
    def properties_changed(self, interface, properties, invalidated):
 
378
        """Call self.update() if any properties changed.
415
379
        This overrides the method from MandosClientPropertyCache"""
416
 
        property_name = unicode(property)
417
 
        old_value = self.properties.get(property_name)
418
 
        super(MandosClientWidget, self).property_changed(
419
 
            property=property, value=value, *args, **kwargs)
420
 
        if self.properties.get(property_name) != old_value:
 
380
        old_values = {key: self.properties.get(key)
 
381
                      for key in properties.keys()}
 
382
        super(MandosClientWidget, self).properties_changed(
 
383
            interface, properties, invalidated)
 
384
        if any(old_values[key] != self.properties.get(key)
 
385
               for key in old_values):
421
386
            self.update()
422
387
 
423
388
 
426
391
    "down" key presses, thus not allowing any containing widgets to
427
392
    use them as an excuse to shift focus away from this widget.
428
393
    """
429
 
    def keypress(self, maxcolrow, key):
430
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
394
    def keypress(self, *args, **kwargs):
 
395
        ret = (super(ConstrainedListBox, self)
 
396
               .keypress(*args, **kwargs))
431
397
        if ret in ("up", "down"):
432
398
            return
433
399
        return ret
437
403
    """This is the entire user interface - the whole screen
438
404
    with boxes, lists of client widgets, etc.
439
405
    """
440
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
441
407
        DBusGMainLoop(set_as_default=True)
442
 
        
 
408
 
443
409
        self.screen = urwid.curses_display.Screen()
444
 
        
 
410
 
445
411
        self.screen.register_palette((
446
412
                ("normal",
447
413
                 "default", "default", None),
448
414
                ("bold",
449
 
                 "default", "default", "bold"),
 
415
                 "bold", "default", "bold"),
450
416
                ("underline-blink",
451
 
                 "default", "default", "underline"),
 
417
                 "underline,blink", "default", "underline,blink"),
452
418
                ("standout",
453
 
                 "default", "default", "standout"),
 
419
                 "standout", "default", "standout"),
454
420
                ("bold-underline-blink",
455
 
                 "default", "default", ("bold", "underline")),
 
421
                 "bold,underline,blink", "default",
 
422
                 "bold,underline,blink"),
456
423
                ("bold-standout",
457
 
                 "default", "default", ("bold", "standout")),
 
424
                 "bold,standout", "default", "bold,standout"),
458
425
                ("underline-blink-standout",
459
 
                 "default", "default", ("underline", "standout")),
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
460
428
                ("bold-underline-blink-standout",
461
 
                 "default", "default", ("bold", "underline",
462
 
                                          "standout")),
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
463
431
                ))
464
 
        
 
432
 
465
433
        if urwid.supports_unicode():
466
 
            self.divider = "─" # \u2500
467
 
            #self.divider = "━" # \u2501
 
434
            self.divider = "─"  # \u2500
468
435
        else:
469
 
            #self.divider = "-" # \u002d
470
 
            self.divider = "_" # \u005f
471
 
        
 
436
            self.divider = "_"  # \u005f
 
437
 
472
438
        self.screen.start()
473
 
        
 
439
 
474
440
        self.size = self.screen.get_cols_rows()
475
 
        
 
441
 
476
442
        self.clients = urwid.SimpleListWalker([])
477
443
        self.clients_dict = {}
478
 
        
 
444
 
479
445
        # We will add Text widgets to this list
480
446
        self.log = []
481
447
        self.max_log_length = max_log_length
482
 
        
 
448
 
 
449
        self.log_level = log_level
 
450
 
483
451
        # We keep a reference to the log widget so we can remove it
484
452
        # from the ListWalker without it getting destroyed
485
453
        self.logbox = ConstrainedListBox(self.log)
486
 
        
 
454
 
487
455
        # This keeps track of whether self.uilist currently has
488
456
        # self.logbox in it or not
489
457
        self.log_visible = True
490
458
        self.log_wrap = "any"
491
 
        
 
459
 
492
460
        self.rebuild()
493
461
        self.log_message_raw(("bold",
494
462
                              "Mandos Monitor version " + version))
495
463
        self.log_message_raw(("bold",
496
464
                              "q: Quit  ?: Help"))
497
 
        
 
465
 
498
466
        self.busname = domain + '.Mandos'
499
 
        self.main_loop = gobject.MainLoop()
500
 
        self.bus = dbus.SystemBus()
501
 
        mandos_dbus_objc = self.bus.get_object(
502
 
            self.busname, "/", follow_name_owner_changes=True)
503
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
504
 
                                          dbus_interface
505
 
                                          = server_interface)
506
 
        try:
507
 
            mandos_clients = (self.mandos_serv
508
 
                              .GetAllClientsWithProperties())
509
 
        except dbus.exceptions.DBusException:
510
 
            mandos_clients = dbus.Dictionary()
511
 
        
512
 
        (self.mandos_serv
513
 
         .connect_to_signal("ClientRemoved",
514
 
                            self.find_and_remove_client,
515
 
                            dbus_interface=server_interface,
516
 
                            byte_arrays=True))
517
 
        (self.mandos_serv
518
 
         .connect_to_signal("ClientAdded",
519
 
                            self.add_new_client,
520
 
                            dbus_interface=server_interface,
521
 
                            byte_arrays=True))
522
 
        (self.mandos_serv
523
 
         .connect_to_signal("ClientNotFound",
524
 
                            self.client_not_found,
525
 
                            dbus_interface=server_interface,
526
 
                            byte_arrays=True))
527
 
        for path, client in mandos_clients.iteritems():
528
 
            client_proxy_object = self.bus.get_object(self.busname,
529
 
                                                      path)
530
 
            self.add_client(MandosClientWidget(server_proxy_object
531
 
                                               =self.mandos_serv,
532
 
                                               proxy_object
533
 
                                               =client_proxy_object,
534
 
                                               properties=client,
535
 
                                               update_hook
536
 
                                               =self.refresh,
537
 
                                               delete_hook
538
 
                                               =self.remove_client,
539
 
                                               logger
540
 
                                               =self.log_message),
541
 
                            path=path)
542
 
    
 
467
        self.main_loop = GLib.MainLoop()
 
468
 
543
469
    def client_not_found(self, fingerprint, address):
544
 
        self.log_message(("Client with address %s and fingerprint %s"
545
 
                          " could not be found" % (address,
546
 
                                                    fingerprint)))
547
 
    
 
470
        self.log_message("Client with address {} and fingerprint {}"
 
471
                         " could not be found"
 
472
                         .format(address, fingerprint))
 
473
 
548
474
    def rebuild(self):
549
475
        """This rebuilds the User Interface.
550
476
        Call this when the widget layout needs to change"""
551
477
        self.uilist = []
552
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
553
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
554
480
                                                          clients),
555
 
                                       #header=urwid.Divider(),
 
481
                                       # header=urwid.Divider(),
556
482
                                       header=None,
557
 
                                       footer=
558
 
                                       urwid.Divider(div_char=
559
 
                                                     self.divider)))
 
483
                                       footer=urwid.Divider(
 
484
                                           div_char=self.divider)))
560
485
        if self.log_visible:
561
486
            self.uilist.append(self.logbox)
562
 
            pass
563
487
        self.topwidget = urwid.Pile(self.uilist)
564
 
    
565
 
    def log_message(self, message):
 
488
 
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
566
493
        timestamp = datetime.datetime.now().isoformat()
567
 
        self.log_message_raw(timestamp + ": " + message)
568
 
    
569
 
    def log_message_raw(self, markup):
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
495
                             level=level)
 
496
 
 
497
    def log_message_raw(self, markup, level=1):
570
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
571
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
572
 
        if (self.max_log_length
573
 
            and len(self.log) > self.max_log_length):
574
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
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-1]
575
505
        self.logbox.set_focus(len(self.logbox.body.contents),
576
506
                              coming_from="above")
577
507
        self.refresh()
578
 
    
 
508
 
579
509
    def toggle_log_display(self):
580
510
        """Toggle visibility of the log buffer."""
581
511
        self.log_visible = not self.log_visible
582
512
        self.rebuild()
583
 
        #self.log_message("Log visibility changed to: "
584
 
        #                 + unicode(self.log_visible))
585
 
    
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
 
515
 
586
516
    def change_log_display(self):
587
517
        """Change type of log display.
588
518
        Currently, this toggles wrapping of text lines."""
592
522
            self.log_wrap = "clip"
593
523
        for textwidget in self.log:
594
524
            textwidget.set_wrap_mode(self.log_wrap)
595
 
        #self.log_message("Wrap mode: " + self.log_wrap)
596
 
    
597
 
    def find_and_remove_client(self, path, name):
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
 
527
 
 
528
    def find_and_remove_client(self, path, interfaces):
598
529
        """Find a client by its object path and remove it.
599
 
        
600
 
        This is connected to the ClientRemoved signal from the
 
530
 
 
531
        This is connected to the InterfacesRemoved signal from the
601
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
602
536
        try:
603
537
            client = self.clients_dict[path]
604
538
        except KeyError:
605
539
            # not found?
606
 
            self.log_message("Unknown client %r (%r) removed", name,
607
 
                             path)
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
608
542
            return
609
543
        client.delete()
610
 
    
611
 
    def add_new_client(self, path):
 
544
 
 
545
    def add_new_client(self, path, ifs_and_props):
 
546
        """Find a client by its object path and remove it.
 
547
 
 
548
        This is connected to the InterfacesAdded signal from the
 
549
        Mandos server object.
 
550
        """
 
551
        if client_interface not in ifs_and_props:
 
552
            # Not a Mandos client object; ignore
 
553
            return
612
554
        client_proxy_object = self.bus.get_object(self.busname, path)
613
 
        self.add_client(MandosClientWidget(server_proxy_object
614
 
                                           =self.mandos_serv,
615
 
                                           proxy_object
616
 
                                           =client_proxy_object,
617
 
                                           update_hook
618
 
                                           =self.refresh,
619
 
                                           delete_hook
620
 
                                           =self.remove_client,
621
 
                                           logger
622
 
                                           =self.log_message),
 
555
        self.add_client(MandosClientWidget(
 
556
            server_proxy_object=self.mandos_serv,
 
557
            proxy_object=client_proxy_object,
 
558
            update_hook=self.refresh,
 
559
            delete_hook=self.remove_client,
 
560
            logger=self.log_message,
 
561
            properties=dict(ifs_and_props[client_interface])),
623
562
                        path=path)
624
 
    
 
563
 
625
564
    def add_client(self, client, path=None):
626
565
        self.clients.append(client)
627
566
        if path is None:
628
567
            path = client.proxy.object_path
629
568
        self.clients_dict[path] = client
630
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
631
570
        self.refresh()
632
 
    
 
571
 
633
572
    def remove_client(self, client, path=None):
634
573
        self.clients.remove(client)
635
574
        if path is None:
636
575
            path = client.proxy.object_path
637
576
        del self.clients_dict[path]
638
 
        if not self.clients_dict:
639
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
640
 
            # is completely emptied, we need to recreate it.
641
 
            self.clients = urwid.SimpleListWalker([])
642
 
            self.rebuild()
643
577
        self.refresh()
644
 
    
 
578
 
645
579
    def refresh(self):
646
580
        """Redraw the screen"""
647
581
        canvas = self.topwidget.render(self.size, focus=True)
648
582
        self.screen.draw_screen(self.size, canvas)
649
 
    
 
583
 
650
584
    def run(self):
651
585
        """Start the main loop and exit when it's done."""
 
586
        self.bus = dbus.SystemBus()
 
587
        mandos_dbus_objc = self.bus.get_object(
 
588
            self.busname, "/", follow_name_owner_changes=True)
 
589
        self.mandos_serv = dbus.Interface(
 
590
            mandos_dbus_objc, dbus_interface=server_interface)
 
591
        try:
 
592
            mandos_clients = (self.mandos_serv
 
593
                              .GetAllClientsWithProperties())
 
594
            if not mandos_clients:
 
595
                self.log_message_raw(("bold",
 
596
                                      "Note: Server has no clients."))
 
597
        except dbus.exceptions.DBusException:
 
598
            self.log_message_raw(("bold",
 
599
                                  "Note: No Mandos server running."))
 
600
            mandos_clients = dbus.Dictionary()
 
601
 
 
602
        (self.mandos_serv
 
603
         .connect_to_signal("InterfacesRemoved",
 
604
                            self.find_and_remove_client,
 
605
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
606
                            byte_arrays=True))
 
607
        (self.mandos_serv
 
608
         .connect_to_signal("InterfacesAdded",
 
609
                            self.add_new_client,
 
610
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
611
                            byte_arrays=True))
 
612
        (self.mandos_serv
 
613
         .connect_to_signal("ClientNotFound",
 
614
                            self.client_not_found,
 
615
                            dbus_interface=server_interface,
 
616
                            byte_arrays=True))
 
617
        for path, client in mandos_clients.items():
 
618
            client_proxy_object = self.bus.get_object(self.busname,
 
619
                                                      path)
 
620
            self.add_client(MandosClientWidget(
 
621
                server_proxy_object=self.mandos_serv,
 
622
                proxy_object=client_proxy_object,
 
623
                properties=client,
 
624
                update_hook=self.refresh,
 
625
                delete_hook=self.remove_client,
 
626
                logger=self.log_message),
 
627
                            path=path)
 
628
 
652
629
        self.refresh()
653
 
        self._input_callback_tag = (gobject.io_add_watch
 
630
        self._input_callback_tag = (GLib.io_add_watch
654
631
                                    (sys.stdin.fileno(),
655
 
                                     gobject.IO_IN,
 
632
                                     GLib.IO_IN,
656
633
                                     self.process_input))
657
634
        self.main_loop.run()
658
635
        # Main loop has finished, we should close everything now
659
 
        gobject.source_remove(self._input_callback_tag)
 
636
        GLib.source_remove(self._input_callback_tag)
660
637
        self.screen.stop()
661
 
    
 
638
 
662
639
    def stop(self):
663
640
        self.main_loop.quit()
664
 
    
 
641
 
665
642
    def process_input(self, source, condition):
666
643
        keys = self.screen.get_input()
667
 
        translations = { "ctrl n": "down",      # Emacs
668
 
                         "ctrl p": "up",        # Emacs
669
 
                         "ctrl v": "page down", # Emacs
670
 
                         "meta v": "page up",   # Emacs
671
 
                         " ": "page down",      # less
672
 
                         "f": "page down",      # less
673
 
                         "b": "page up",        # less
674
 
                         "j": "down",           # vi
675
 
                         "k": "up",             # vi
676
 
                         }
 
644
        translations = {"ctrl n": "down",       # Emacs
 
645
                        "ctrl p": "up",         # Emacs
 
646
                        "ctrl v": "page down",  # Emacs
 
647
                        "meta v": "page up",    # Emacs
 
648
                        " ": "page down",       # less
 
649
                        "f": "page down",       # less
 
650
                        "b": "page up",         # less
 
651
                        "j": "down",            # vi
 
652
                        "k": "up",              # vi
 
653
                        }
677
654
        for key in keys:
678
655
            try:
679
656
                key = translations[key]
680
657
            except KeyError:    # :-)
681
658
                pass
682
 
            
 
659
 
683
660
            if key == "q" or key == "Q":
684
661
                self.stop()
685
662
                break
686
663
            elif key == "window resize":
687
664
                self.size = self.screen.get_cols_rows()
688
665
                self.refresh()
689
 
            elif key == "\f":  # Ctrl-L
 
666
            elif key == "ctrl l":
 
667
                self.screen.clear()
690
668
                self.refresh()
691
669
            elif key == "l" or key == "D":
692
670
                self.toggle_log_display()
704
682
                                            "?: Help",
705
683
                                            "l: Log window toggle",
706
684
                                            "TAB: Switch window",
707
 
                                            "w: Wrap (log)"))))
 
685
                                            "w: Wrap (log lines)",
 
686
                                            "v: Toggle verbose log",
 
687
                                            ))))
708
688
                self.log_message_raw(("bold",
709
689
                                      "  "
710
690
                                      .join(("Clients:",
723
703
                else:
724
704
                    self.topwidget.set_focus(self.logbox)
725
705
                self.refresh()
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
 
706
            elif key == "v":
 
707
                if self.log_level == 0:
 
708
                    self.log_level = 1
 
709
                    self.log_message("Verbose mode: Off")
 
710
                else:
 
711
                    self.log_level = 0
 
712
                    self.log_message("Verbose mode: On")
 
713
            # elif (key == "end" or key == "meta >" or key == "G"
 
714
            #       or key == ">"):
 
715
            #     pass            # xxx end-of-buffer
 
716
            # elif (key == "home" or key == "meta <" or key == "g"
 
717
            #       or key == "<"):
 
718
            #     pass            # xxx beginning-of-buffer
 
719
            # elif key == "ctrl e" or key == "$":
 
720
            #     pass            # xxx move-end-of-line
 
721
            # elif key == "ctrl a" or key == "^":
 
722
            #     pass            # xxx move-beginning-of-line
 
723
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
724
            #     pass            # xxx left
 
725
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
726
            #     pass            # xxx right
 
727
            # elif key == "a":
 
728
            #     pass            # scroll up log
 
729
            # elif key == "z":
 
730
            #     pass            # scroll down log
744
731
            elif self.topwidget.selectable():
745
732
                self.topwidget.keypress(self.size, key)
746
733
                self.refresh()
747
734
        return True
748
735
 
 
736
 
749
737
ui = UserInterface()
750
738
try:
751
739
    ui.run()
752
740
except KeyboardInterrupt:
753
741
    ui.screen.stop()
754
 
except Exception, e:
755
 
    ui.log_message(unicode(e))
 
742
except Exception as e:
 
743
    ui.log_message(str(e))
756
744
    ui.screen.stop()
757
745
    raise