/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2017-08-20 14:41:20 UTC
  • Revision ID: teddy@recompile.se-20170820144120-ee0hsyhvo1geg8ms
Handle multiple lines better in cryptroot file.

* initramfs-tools-script: Avoid running plugin-runner more than once
  if the root file system device is specially marked in the cryptroot
  file.  Also never run plugin-runner for a resume (usually swap)
  device.

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Lines of Context:
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 © 2009-2012 Teddy Hogeborn
7
 
# Copyright © 2009-2012 Björn Påhlsson
8
 
# 
 
5
#
 
6
# Copyright © 2009-2017 Teddy Hogeborn
 
7
# Copyright © 2009-2017 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
 
# 
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
#
22
23
# Contact the authors at <mandos@recompile.se>.
23
 
# 
 
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 = "1.5.0"
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 = "1.7.15"
 
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
 
        """Server signals that a checker started. This could be useful
246
 
           to log in the future. """
247
 
        #self.logger('Client %s started checker "%s"'
248
 
        #            % (self.properties["Name"], unicode(command)))
249
 
        pass
250
 
    
 
202
        """Server signals that a checker started."""
 
203
        self.logger('Client {} started checker "{}"'
 
204
                    .format(self.properties["Name"],
 
205
                            command), level=0)
 
206
 
251
207
    def got_secret(self):
252
 
        self.last_checker_failed = False
253
 
        self.logger('Client %s received its secret'
254
 
                    % self.properties["Name"])
255
 
    
 
208
        self.logger('Client {} received its secret'
 
209
                    .format(self.properties["Name"]))
 
210
 
256
211
    def need_approval(self, timeout, default):
257
212
        if not default:
258
 
            message = 'Client %s needs approval within %s seconds'
 
213
            message = 'Client {} needs approval within {} seconds'
259
214
        else:
260
 
            message = 'Client %s will get its secret in %s seconds'
261
 
        self.logger(message
262
 
                    % (self.properties["Name"], timeout/1000))
263
 
        self.using_timer(True)
264
 
    
 
215
            message = 'Client {} will get its secret in {} seconds'
 
216
        self.logger(message.format(self.properties["Name"],
 
217
                                   timeout/1000))
 
218
 
265
219
    def rejected(self, reason):
266
 
        self.logger('Client %s was rejected; reason: %s'
267
 
                    % (self.properties["Name"], reason))
268
 
    
 
220
        self.logger('Client {} was rejected; reason: {}'
 
221
                    .format(self.properties["Name"], reason))
 
222
 
269
223
    def selectable(self):
270
224
        """Make this a "selectable" widget.
271
225
        This overrides the method from urwid.FlowWidget."""
272
226
        return True
273
 
    
 
227
 
274
228
    def rows(self, maxcolrow, focus=False):
275
229
        """How many rows this widget will occupy might depend on
276
230
        whether we have focus or not.
277
231
        This overrides the method from urwid.FlowWidget"""
278
232
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
279
 
    
 
233
 
280
234
    def current_widget(self, focus=False):
281
235
        if focus or self.opened:
282
236
            return self._focus_widget
283
237
        return self._widget
284
 
    
 
238
 
285
239
    def update(self):
286
240
        "Called when what is visible on the screen should be updated."
287
241
        # How to add standout mode to a style
288
 
        with_standout = { "normal": "standout",
289
 
                          "bold": "bold-standout",
290
 
                          "underline-blink":
291
 
                              "underline-blink-standout",
292
 
                          "bold-underline-blink":
293
 
                              "bold-underline-blink-standout",
294
 
                          }
 
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
                         }
295
249
 
296
250
        # Rebuild focus and non-focus widgets using current properties
297
251
 
298
252
        # Base part of a client. Name!
299
 
        base = ('%(name)s: '
300
 
                      % {"name": self.properties["Name"]})
 
253
        base = '{name}: '.format(name=self.properties["Name"])
301
254
        if not self.properties["Enabled"]:
302
255
            message = "DISABLED"
 
256
            self.using_timer(False)
303
257
        elif self.properties["ApprovalPending"]:
304
 
            timeout = datetime.timedelta(milliseconds
305
 
                                         = self.properties
306
 
                                         ["ApprovalDelay"])
 
258
            timeout = datetime.timedelta(
 
259
                milliseconds=self.properties["ApprovalDelay"])
307
260
            last_approval_request = isoformat_to_datetime(
308
261
                self.properties["LastApprovalRequest"])
309
262
            if last_approval_request is not None:
310
 
                timer = timeout - (datetime.datetime.utcnow()
311
 
                                   - last_approval_request)
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
                                       - last_approval_request),
 
265
                            datetime.timedelta())
312
266
            else:
313
267
                timer = datetime.timedelta()
314
268
            if self.properties["ApprovedByDefault"]:
315
 
                message = "Approval in %s. (d)eny?"
 
269
                message = "Approval in {}. (d)eny?"
316
270
            else:
317
 
                message = "Denial in %s. (a)pprove?"
318
 
            message = message % unicode(timer).rsplit(".", 1)[0]
319
 
        elif self.last_checker_failed:
320
 
            # 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
321
276
            expires = self.properties["Expires"]
322
277
            if expires == "":
323
278
                timer = datetime.timedelta(0)
324
279
            else:
325
 
                expires = datetime.datetime.strptime(expires,
326
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
327
 
                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())
328
284
            message = ('A checker has failed! Time until client'
329
 
                       ' gets disabled: %s'
330
 
                           % unicode(timer).rsplit(".", 1)[0])
 
285
                       ' gets disabled: {}'
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
            self.using_timer(True)
331
288
        else:
332
289
            message = "enabled"
333
 
        self._text = "%s%s" % (base, message)
334
 
            
 
290
            self.using_timer(False)
 
291
        self._text = "{}{}".format(base, message)
 
292
 
335
293
        if not urwid.supports_unicode():
336
294
            self._text = self._text.encode("ascii", "replace")
337
295
        textlist = [("normal", self._text)]
347
305
        # Run update hook, if any
348
306
        if self.update_hook is not None:
349
307
            self.update_hook()
350
 
    
 
308
 
351
309
    def update_timer(self):
352
 
        """called by gobject. Will indefinitely loop until
353
 
        gobject.source_remove() on tag is called"""
 
310
        """called by GLib. Will indefinitely loop until
 
311
        GLib.source_remove() on tag is called
 
312
        """
354
313
        self.update()
355
314
        return True             # Keep calling this
356
 
    
357
 
    def delete(self, *args, **kwargs):
 
315
 
 
316
    def delete(self, **kwargs):
358
317
        if self._update_timer_callback_tag is not None:
359
 
            gobject.source_remove(self._update_timer_callback_tag)
 
318
            GLib.source_remove(self._update_timer_callback_tag)
360
319
            self._update_timer_callback_tag = None
361
320
        for match in self.match_objects:
362
321
            match.remove()
363
322
        self.match_objects = ()
364
323
        if self.delete_hook is not None:
365
324
            self.delete_hook(self)
366
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
367
 
    
 
325
        return super(MandosClientWidget, self).delete(**kwargs)
 
326
 
368
327
    def render(self, maxcolrow, focus=False):
369
328
        """Render differently if we have focus.
370
329
        This overrides the method from urwid.FlowWidget"""
371
330
        return self.current_widget(focus).render(maxcolrow,
372
331
                                                 focus=focus)
373
 
    
 
332
 
374
333
    def keypress(self, maxcolrow, key):
375
334
        """Handle keys.
376
335
        This overrides the method from urwid.FlowWidget"""
377
336
        if key == "+":
378
 
            self.proxy.Enable(dbus_interface = client_interface,
379
 
                              ignore_reply=True)
 
337
            self.proxy.Set(client_interface, "Enabled",
 
338
                           dbus.Boolean(True), ignore_reply=True,
 
339
                           dbus_interface=dbus.PROPERTIES_IFACE)
380
340
        elif key == "-":
381
 
            self.proxy.Disable(dbus_interface = client_interface,
382
 
                               ignore_reply=True)
 
341
            self.proxy.Set(client_interface, "Enabled", False,
 
342
                           ignore_reply=True,
 
343
                           dbus_interface=dbus.PROPERTIES_IFACE)
383
344
        elif key == "a":
384
345
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
385
 
                               dbus_interface = client_interface,
 
346
                               dbus_interface=client_interface,
386
347
                               ignore_reply=True)
387
348
        elif key == "d":
388
349
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
389
 
                                  dbus_interface = client_interface,
 
350
                               dbus_interface=client_interface,
390
351
                               ignore_reply=True)
391
352
        elif key == "R" or key == "_" or key == "ctrl k":
392
353
            self.server_proxy_object.RemoveClient(self.proxy
393
354
                                                  .object_path,
394
355
                                                  ignore_reply=True)
395
356
        elif key == "s":
396
 
            self.proxy.StartChecker(dbus_interface = client_interface,
397
 
                                    ignore_reply=True)
 
357
            self.proxy.Set(client_interface, "CheckerRunning",
 
358
                           dbus.Boolean(True), ignore_reply=True,
 
359
                           dbus_interface=dbus.PROPERTIES_IFACE)
398
360
        elif key == "S":
399
 
            self.proxy.StopChecker(dbus_interface = client_interface,
400
 
                                   ignore_reply=True)
 
361
            self.proxy.Set(client_interface, "CheckerRunning",
 
362
                           dbus.Boolean(False), ignore_reply=True,
 
363
                           dbus_interface=dbus.PROPERTIES_IFACE)
401
364
        elif key == "C":
402
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
            self.proxy.CheckedOK(dbus_interface=client_interface,
403
366
                                 ignore_reply=True)
404
367
        # xxx
405
368
#         elif key == "p" or key == "=":
410
373
#             self.open()
411
374
        else:
412
375
            return key
413
 
    
414
 
    def property_changed(self, property=None, value=None,
415
 
                         *args, **kwargs):
416
 
        """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.
417
379
        This overrides the method from MandosClientPropertyCache"""
418
 
        property_name = unicode(property)
419
 
        old_value = self.properties.get(property_name)
420
 
        super(MandosClientWidget, self).property_changed(
421
 
            property=property, value=value, *args, **kwargs)
422
 
        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):
423
386
            self.update()
424
387
 
425
388
 
428
391
    "down" key presses, thus not allowing any containing widgets to
429
392
    use them as an excuse to shift focus away from this widget.
430
393
    """
431
 
    def keypress(self, maxcolrow, key):
432
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
394
    def keypress(self, *args, **kwargs):
 
395
        ret = (super(ConstrainedListBox, self)
 
396
               .keypress(*args, **kwargs))
433
397
        if ret in ("up", "down"):
434
398
            return
435
399
        return ret
439
403
    """This is the entire user interface - the whole screen
440
404
    with boxes, lists of client widgets, etc.
441
405
    """
442
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
443
407
        DBusGMainLoop(set_as_default=True)
444
 
        
 
408
 
445
409
        self.screen = urwid.curses_display.Screen()
446
 
        
 
410
 
447
411
        self.screen.register_palette((
448
412
                ("normal",
449
413
                 "default", "default", None),
450
414
                ("bold",
451
 
                 "default", "default", "bold"),
 
415
                 "bold", "default", "bold"),
452
416
                ("underline-blink",
453
 
                 "default", "default", "underline"),
 
417
                 "underline,blink", "default", "underline,blink"),
454
418
                ("standout",
455
 
                 "default", "default", "standout"),
 
419
                 "standout", "default", "standout"),
456
420
                ("bold-underline-blink",
457
 
                 "default", "default", ("bold", "underline")),
 
421
                 "bold,underline,blink", "default",
 
422
                 "bold,underline,blink"),
458
423
                ("bold-standout",
459
 
                 "default", "default", ("bold", "standout")),
 
424
                 "bold,standout", "default", "bold,standout"),
460
425
                ("underline-blink-standout",
461
 
                 "default", "default", ("underline", "standout")),
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
462
428
                ("bold-underline-blink-standout",
463
 
                 "default", "default", ("bold", "underline",
464
 
                                          "standout")),
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
465
431
                ))
466
 
        
 
432
 
467
433
        if urwid.supports_unicode():
468
 
            self.divider = "─" # \u2500
469
 
            #self.divider = "━" # \u2501
 
434
            self.divider = "─"  # \u2500
470
435
        else:
471
 
            #self.divider = "-" # \u002d
472
 
            self.divider = "_" # \u005f
473
 
        
 
436
            self.divider = "_"  # \u005f
 
437
 
474
438
        self.screen.start()
475
 
        
 
439
 
476
440
        self.size = self.screen.get_cols_rows()
477
 
        
 
441
 
478
442
        self.clients = urwid.SimpleListWalker([])
479
443
        self.clients_dict = {}
480
 
        
 
444
 
481
445
        # We will add Text widgets to this list
482
446
        self.log = []
483
447
        self.max_log_length = max_log_length
484
 
        
 
448
 
 
449
        self.log_level = log_level
 
450
 
485
451
        # We keep a reference to the log widget so we can remove it
486
452
        # from the ListWalker without it getting destroyed
487
453
        self.logbox = ConstrainedListBox(self.log)
488
 
        
 
454
 
489
455
        # This keeps track of whether self.uilist currently has
490
456
        # self.logbox in it or not
491
457
        self.log_visible = True
492
458
        self.log_wrap = "any"
493
 
        
 
459
 
494
460
        self.rebuild()
495
461
        self.log_message_raw(("bold",
496
462
                              "Mandos Monitor version " + version))
497
463
        self.log_message_raw(("bold",
498
464
                              "q: Quit  ?: Help"))
499
 
        
 
465
 
500
466
        self.busname = domain + '.Mandos'
501
 
        self.main_loop = gobject.MainLoop()
502
 
    
 
467
        self.main_loop = GLib.MainLoop()
 
468
 
503
469
    def client_not_found(self, fingerprint, address):
504
 
        self.log_message(("Client with address %s and fingerprint %s"
505
 
                          " could not be found" % (address,
506
 
                                                    fingerprint)))
507
 
    
 
470
        self.log_message("Client with address {} and fingerprint {}"
 
471
                         " could not be found"
 
472
                         .format(address, fingerprint))
 
473
 
508
474
    def rebuild(self):
509
475
        """This rebuilds the User Interface.
510
476
        Call this when the widget layout needs to change"""
511
477
        self.uilist = []
512
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
513
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
514
480
                                                          clients),
515
 
                                       #header=urwid.Divider(),
 
481
                                       # header=urwid.Divider(),
516
482
                                       header=None,
517
 
                                       footer=
518
 
                                       urwid.Divider(div_char=
519
 
                                                     self.divider)))
 
483
                                       footer=urwid.Divider(
 
484
                                           div_char=self.divider)))
520
485
        if self.log_visible:
521
486
            self.uilist.append(self.logbox)
522
487
        self.topwidget = urwid.Pile(self.uilist)
523
 
    
524
 
    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
525
493
        timestamp = datetime.datetime.now().isoformat()
526
 
        self.log_message_raw(timestamp + ": " + message)
527
 
    
528
 
    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):
529
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
530
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
531
 
        if (self.max_log_length
532
 
            and len(self.log) > self.max_log_length):
533
 
            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]
534
505
        self.logbox.set_focus(len(self.logbox.body.contents),
535
506
                              coming_from="above")
536
507
        self.refresh()
537
 
    
 
508
 
538
509
    def toggle_log_display(self):
539
510
        """Toggle visibility of the log buffer."""
540
511
        self.log_visible = not self.log_visible
541
512
        self.rebuild()
542
 
        #self.log_message("Log visibility changed to: "
543
 
        #                 + unicode(self.log_visible))
544
 
    
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
 
515
 
545
516
    def change_log_display(self):
546
517
        """Change type of log display.
547
518
        Currently, this toggles wrapping of text lines."""
551
522
            self.log_wrap = "clip"
552
523
        for textwidget in self.log:
553
524
            textwidget.set_wrap_mode(self.log_wrap)
554
 
        #self.log_message("Wrap mode: " + self.log_wrap)
555
 
    
556
 
    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):
557
529
        """Find a client by its object path and remove it.
558
 
        
559
 
        This is connected to the ClientRemoved signal from the
 
530
 
 
531
        This is connected to the InterfacesRemoved signal from the
560
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
561
536
        try:
562
537
            client = self.clients_dict[path]
563
538
        except KeyError:
564
539
            # not found?
565
 
            self.log_message("Unknown client %r (%r) removed", name,
566
 
                             path)
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
567
542
            return
568
543
        client.delete()
569
 
    
570
 
    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
571
554
        client_proxy_object = self.bus.get_object(self.busname, path)
572
 
        self.add_client(MandosClientWidget(server_proxy_object
573
 
                                           =self.mandos_serv,
574
 
                                           proxy_object
575
 
                                           =client_proxy_object,
576
 
                                           update_hook
577
 
                                           =self.refresh,
578
 
                                           delete_hook
579
 
                                           =self.remove_client,
580
 
                                           logger
581
 
                                           =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])),
582
562
                        path=path)
583
 
    
 
563
 
584
564
    def add_client(self, client, path=None):
585
565
        self.clients.append(client)
586
566
        if path is None:
587
567
            path = client.proxy.object_path
588
568
        self.clients_dict[path] = client
589
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
590
570
        self.refresh()
591
 
    
 
571
 
592
572
    def remove_client(self, client, path=None):
593
573
        self.clients.remove(client)
594
574
        if path is None:
595
575
            path = client.proxy.object_path
596
576
        del self.clients_dict[path]
597
 
        if not self.clients_dict:
598
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
599
 
            # is completely emptied, we need to recreate it.
600
 
            self.clients = urwid.SimpleListWalker([])
601
 
            self.rebuild()
602
577
        self.refresh()
603
 
    
 
578
 
604
579
    def refresh(self):
605
580
        """Redraw the screen"""
606
581
        canvas = self.topwidget.render(self.size, focus=True)
607
582
        self.screen.draw_screen(self.size, canvas)
608
 
    
 
583
 
609
584
    def run(self):
610
585
        """Start the main loop and exit when it's done."""
611
586
        self.bus = dbus.SystemBus()
612
587
        mandos_dbus_objc = self.bus.get_object(
613
588
            self.busname, "/", follow_name_owner_changes=True)
614
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
615
 
                                          dbus_interface
616
 
                                          = server_interface)
 
589
        self.mandos_serv = dbus.Interface(
 
590
            mandos_dbus_objc, dbus_interface=server_interface)
617
591
        try:
618
592
            mandos_clients = (self.mandos_serv
619
593
                              .GetAllClientsWithProperties())
 
594
            if not mandos_clients:
 
595
                self.log_message_raw(("bold",
 
596
                                      "Note: Server has no clients."))
620
597
        except dbus.exceptions.DBusException:
 
598
            self.log_message_raw(("bold",
 
599
                                  "Note: No Mandos server running."))
621
600
            mandos_clients = dbus.Dictionary()
622
 
        
 
601
 
623
602
        (self.mandos_serv
624
 
         .connect_to_signal("ClientRemoved",
 
603
         .connect_to_signal("InterfacesRemoved",
625
604
                            self.find_and_remove_client,
626
 
                            dbus_interface=server_interface,
 
605
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
627
606
                            byte_arrays=True))
628
607
        (self.mandos_serv
629
 
         .connect_to_signal("ClientAdded",
 
608
         .connect_to_signal("InterfacesAdded",
630
609
                            self.add_new_client,
631
 
                            dbus_interface=server_interface,
 
610
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
632
611
                            byte_arrays=True))
633
612
        (self.mandos_serv
634
613
         .connect_to_signal("ClientNotFound",
635
614
                            self.client_not_found,
636
615
                            dbus_interface=server_interface,
637
616
                            byte_arrays=True))
638
 
        for path, client in mandos_clients.iteritems():
 
617
        for path, client in mandos_clients.items():
639
618
            client_proxy_object = self.bus.get_object(self.busname,
640
619
                                                      path)
641
 
            self.add_client(MandosClientWidget(server_proxy_object
642
 
                                               =self.mandos_serv,
643
 
                                               proxy_object
644
 
                                               =client_proxy_object,
645
 
                                               properties=client,
646
 
                                               update_hook
647
 
                                               =self.refresh,
648
 
                                               delete_hook
649
 
                                               =self.remove_client,
650
 
                                               logger
651
 
                                               =self.log_message),
 
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),
652
627
                            path=path)
653
628
 
654
629
        self.refresh()
655
 
        self._input_callback_tag = (gobject.io_add_watch
 
630
        self._input_callback_tag = (GLib.io_add_watch
656
631
                                    (sys.stdin.fileno(),
657
 
                                     gobject.IO_IN,
 
632
                                     GLib.IO_IN,
658
633
                                     self.process_input))
659
634
        self.main_loop.run()
660
635
        # Main loop has finished, we should close everything now
661
 
        gobject.source_remove(self._input_callback_tag)
 
636
        GLib.source_remove(self._input_callback_tag)
662
637
        self.screen.stop()
663
 
    
 
638
 
664
639
    def stop(self):
665
640
        self.main_loop.quit()
666
 
    
 
641
 
667
642
    def process_input(self, source, condition):
668
643
        keys = self.screen.get_input()
669
 
        translations = { "ctrl n": "down",      # Emacs
670
 
                         "ctrl p": "up",        # Emacs
671
 
                         "ctrl v": "page down", # Emacs
672
 
                         "meta v": "page up",   # Emacs
673
 
                         " ": "page down",      # less
674
 
                         "f": "page down",      # less
675
 
                         "b": "page up",        # less
676
 
                         "j": "down",           # vi
677
 
                         "k": "up",             # vi
678
 
                         }
 
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
                        }
679
654
        for key in keys:
680
655
            try:
681
656
                key = translations[key]
682
657
            except KeyError:    # :-)
683
658
                pass
684
 
            
 
659
 
685
660
            if key == "q" or key == "Q":
686
661
                self.stop()
687
662
                break
688
663
            elif key == "window resize":
689
664
                self.size = self.screen.get_cols_rows()
690
665
                self.refresh()
691
 
            elif key == "\f":  # Ctrl-L
 
666
            elif key == "ctrl l":
 
667
                self.screen.clear()
692
668
                self.refresh()
693
669
            elif key == "l" or key == "D":
694
670
                self.toggle_log_display()
706
682
                                            "?: Help",
707
683
                                            "l: Log window toggle",
708
684
                                            "TAB: Switch window",
709
 
                                            "w: Wrap (log)"))))
 
685
                                            "w: Wrap (log lines)",
 
686
                                            "v: Toggle verbose log",
 
687
                                            ))))
710
688
                self.log_message_raw(("bold",
711
689
                                      "  "
712
690
                                      .join(("Clients:",
725
703
                else:
726
704
                    self.topwidget.set_focus(self.logbox)
727
705
                self.refresh()
728
 
            #elif (key == "end" or key == "meta >" or key == "G"
729
 
            #      or key == ">"):
730
 
            #    pass            # xxx end-of-buffer
731
 
            #elif (key == "home" or key == "meta <" or key == "g"
732
 
            #      or key == "<"):
733
 
            #    pass            # xxx beginning-of-buffer
734
 
            #elif key == "ctrl e" or key == "$":
735
 
            #    pass            # xxx move-end-of-line
736
 
            #elif key == "ctrl a" or key == "^":
737
 
            #    pass            # xxx move-beginning-of-line
738
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
739
 
            #    pass            # xxx left
740
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
741
 
            #    pass            # xxx right
742
 
            #elif key == "a":
743
 
            #    pass            # scroll up log
744
 
            #elif key == "z":
745
 
            #    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
746
731
            elif self.topwidget.selectable():
747
732
                self.topwidget.keypress(self.size, key)
748
733
                self.refresh()
749
734
        return True
750
735
 
 
736
 
751
737
ui = UserInterface()
752
738
try:
753
739
    ui.run()
754
740
except KeyboardInterrupt:
755
741
    ui.screen.stop()
756
 
except Exception, e:
757
 
    ui.log_message(unicode(e))
 
742
except Exception as e:
 
743
    ui.log_message(str(e))
758
744
    ui.screen.stop()
759
745
    raise