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  • 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
 
domain = 'se.bsnet.fukt'
 
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:
203
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
172
        if flag and self._update_timer_callback_tag is None:
 
173
            # Will update the shown timer value every second
 
174
            self._update_timer_callback_tag = (GLib.timeout_add
204
175
                                               (1000,
205
176
                                                self.update_timer))
206
 
        elif old and self._update_timer_callback_lock == 0:
207
 
            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)
208
179
            self._update_timer_callback_tag = None
209
 
    
 
180
 
210
181
    def checker_completed(self, exitstatus, condition, command):
211
182
        if exitstatus == 0:
212
 
            if self.last_checker_failed:
213
 
                self.last_checker_failed = False
214
 
                self.using_timer(False)
215
 
            #self.logger('Checker for client %s (command "%s")'
216
 
            #            ' was successful'
217
 
            #            % (self.properties["Name"], command))
 
183
            self.logger('Checker for client {} (command "{}")'
 
184
                        ' succeeded'.format(self.properties["Name"],
 
185
                                            command), level=0)
218
186
            self.update()
219
187
            return
220
188
        # Checker failed
221
 
        if not self.last_checker_failed:
222
 
            self.last_checker_failed = True
223
 
            self.using_timer(True)
224
189
        if os.WIFEXITED(condition):
225
 
            self.logger('Checker for client %s (command "%s")'
226
 
                        ' failed with exit code %s'
227
 
                        % (self.properties["Name"], command,
228
 
                           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)))
229
194
        elif os.WIFSIGNALED(condition):
230
 
            self.logger('Checker for client %s (command "%s")'
231
 
                        ' was killed by signal %s'
232
 
                        % (self.properties["Name"], command,
233
 
                           os.WTERMSIG(condition)))
234
 
        elif os.WCOREDUMP(condition):
235
 
            self.logger('Checker for client %s (command "%s")'
236
 
                        ' dumped core'
237
 
                        % (self.properties["Name"], command))
238
 
        else:
239
 
            self.logger('Checker for client %s completed'
240
 
                        ' mysteriously')
 
195
            self.logger('Checker for client {} (command "{}") was'
 
196
                        ' killed by signal {}'
 
197
                        .format(self.properties["Name"], command,
 
198
                                os.WTERMSIG(condition)))
241
199
        self.update()
242
 
    
 
200
 
243
201
    def checker_started(self, command):
244
 
        #self.logger('Client %s started checker "%s"'
245
 
        #            % (self.properties["Name"], unicode(command)))
246
 
        pass
247
 
    
 
202
        """Server signals that a checker started."""
 
203
        self.logger('Client {} started checker "{}"'
 
204
                    .format(self.properties["Name"],
 
205
                            command), level=0)
 
206
 
248
207
    def got_secret(self):
249
 
        self.last_checker_failed = False
250
 
        self.logger('Client %s received its secret'
251
 
                    % self.properties["Name"])
252
 
    
 
208
        self.logger('Client {} received its secret'
 
209
                    .format(self.properties["Name"]))
 
210
 
253
211
    def need_approval(self, timeout, default):
254
212
        if not default:
255
 
            message = 'Client %s needs approval within %s seconds'
 
213
            message = 'Client {} needs approval within {} seconds'
256
214
        else:
257
 
            message = 'Client %s will get its secret in %s seconds'
258
 
        self.logger(message
259
 
                    % (self.properties["Name"], timeout/1000))
260
 
        self.using_timer(True)
261
 
    
 
215
            message = 'Client {} will get its secret in {} seconds'
 
216
        self.logger(message.format(self.properties["Name"],
 
217
                                   timeout/1000))
 
218
 
262
219
    def rejected(self, reason):
263
 
        self.logger('Client %s was rejected; reason: %s'
264
 
                    % (self.properties["Name"], reason))
265
 
    
 
220
        self.logger('Client {} was rejected; reason: {}'
 
221
                    .format(self.properties["Name"], reason))
 
222
 
266
223
    def selectable(self):
267
224
        """Make this a "selectable" widget.
268
225
        This overrides the method from urwid.FlowWidget."""
269
226
        return True
270
 
    
 
227
 
271
228
    def rows(self, maxcolrow, focus=False):
272
229
        """How many rows this widget will occupy might depend on
273
230
        whether we have focus or not.
274
231
        This overrides the method from urwid.FlowWidget"""
275
232
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
276
 
    
 
233
 
277
234
    def current_widget(self, focus=False):
278
235
        if focus or self.opened:
279
236
            return self._focus_widget
280
237
        return self._widget
281
 
    
 
238
 
282
239
    def update(self):
283
240
        "Called when what is visible on the screen should be updated."
284
241
        # How to add standout mode to a style
285
 
        with_standout = { "normal": "standout",
286
 
                          "bold": "bold-standout",
287
 
                          "underline-blink":
288
 
                              "underline-blink-standout",
289
 
                          "bold-underline-blink":
290
 
                              "bold-underline-blink-standout",
291
 
                          }
 
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
                         }
292
249
 
293
250
        # Rebuild focus and non-focus widgets using current properties
294
251
 
295
252
        # Base part of a client. Name!
296
 
        base = ('%(name)s: '
297
 
                      % {"name": self.properties["Name"]})
 
253
        base = '{name}: '.format(name=self.properties["Name"])
298
254
        if not self.properties["Enabled"]:
299
255
            message = "DISABLED"
 
256
            self.using_timer(False)
300
257
        elif self.properties["ApprovalPending"]:
301
 
            timeout = datetime.timedelta(milliseconds
302
 
                                         = self.properties
303
 
                                         ["ApprovalDelay"])
 
258
            timeout = datetime.timedelta(
 
259
                milliseconds=self.properties["ApprovalDelay"])
304
260
            last_approval_request = isoformat_to_datetime(
305
261
                self.properties["LastApprovalRequest"])
306
262
            if last_approval_request is not None:
307
 
                timer = timeout - (datetime.datetime.utcnow()
308
 
                                   - last_approval_request)
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
                                       - last_approval_request),
 
265
                            datetime.timedelta())
309
266
            else:
310
267
                timer = datetime.timedelta()
311
268
            if self.properties["ApprovedByDefault"]:
312
 
                message = "Approval in %s. (d)eny?"
313
 
            else:
314
 
                message = "Denial in %s. (a)pprove?"
315
 
            message = message % unicode(timer).rsplit(".", 1)[0]
316
 
        elif self.last_checker_failed:
317
 
            timeout = datetime.timedelta(milliseconds
318
 
                                         = self.properties
319
 
                                         ["Timeout"])
320
 
            last_ok = isoformat_to_datetime(
321
 
                max((self.properties["LastCheckedOK"]
322
 
                     or self.properties["Created"]),
323
 
                    self.properties["LastEnabled"]))
324
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
269
                message = "Approval in {}. (d)eny?"
 
270
            else:
 
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
 
276
            expires = self.properties["Expires"]
 
277
            if expires == "":
 
278
                timer = datetime.timedelta(0)
 
279
            else:
 
280
                expires = (datetime.datetime.strptime
 
281
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
282
                timer = max(expires - datetime.datetime.utcnow(),
 
283
                            datetime.timedelta())
325
284
            message = ('A checker has failed! Time until client'
326
 
                       ' gets disabled: %s'
327
 
                           % unicode(timer).rsplit(".", 1)[0])
 
285
                       ' gets disabled: {}'
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
            self.using_timer(True)
328
288
        else:
329
289
            message = "enabled"
330
 
        self._text = "%s%s" % (base, message)
331
 
            
 
290
            self.using_timer(False)
 
291
        self._text = "{}{}".format(base, message)
 
292
 
332
293
        if not urwid.supports_unicode():
333
294
            self._text = self._text.encode("ascii", "replace")
334
295
        textlist = [("normal", self._text)]
344
305
        # Run update hook, if any
345
306
        if self.update_hook is not None:
346
307
            self.update_hook()
347
 
    
 
308
 
348
309
    def update_timer(self):
349
 
        "called by gobject"
 
310
        """called by GLib. Will indefinitely loop until
 
311
        GLib.source_remove() on tag is called
 
312
        """
350
313
        self.update()
351
314
        return True             # Keep calling this
352
 
    
353
 
    def delete(self, *args, **kwargs):
 
315
 
 
316
    def delete(self, **kwargs):
354
317
        if self._update_timer_callback_tag is not None:
355
 
            gobject.source_remove(self._update_timer_callback_tag)
 
318
            GLib.source_remove(self._update_timer_callback_tag)
356
319
            self._update_timer_callback_tag = None
357
320
        for match in self.match_objects:
358
321
            match.remove()
359
322
        self.match_objects = ()
360
323
        if self.delete_hook is not None:
361
324
            self.delete_hook(self)
362
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
363
 
    
 
325
        return super(MandosClientWidget, self).delete(**kwargs)
 
326
 
364
327
    def render(self, maxcolrow, focus=False):
365
328
        """Render differently if we have focus.
366
329
        This overrides the method from urwid.FlowWidget"""
367
330
        return self.current_widget(focus).render(maxcolrow,
368
331
                                                 focus=focus)
369
 
    
 
332
 
370
333
    def keypress(self, maxcolrow, key):
371
334
        """Handle keys.
372
335
        This overrides the method from urwid.FlowWidget"""
373
336
        if key == "+":
374
 
            self.proxy.Enable(dbus_interface = client_interface,
375
 
                              ignore_reply=True)
 
337
            self.proxy.Set(client_interface, "Enabled",
 
338
                           dbus.Boolean(True), ignore_reply=True,
 
339
                           dbus_interface=dbus.PROPERTIES_IFACE)
376
340
        elif key == "-":
377
 
            self.proxy.Disable(dbus_interface = client_interface,
378
 
                               ignore_reply=True)
 
341
            self.proxy.Set(client_interface, "Enabled", False,
 
342
                           ignore_reply=True,
 
343
                           dbus_interface=dbus.PROPERTIES_IFACE)
379
344
        elif key == "a":
380
345
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
381
 
                               dbus_interface = client_interface,
 
346
                               dbus_interface=client_interface,
382
347
                               ignore_reply=True)
383
348
        elif key == "d":
384
349
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
385
 
                                  dbus_interface = client_interface,
 
350
                               dbus_interface=client_interface,
386
351
                               ignore_reply=True)
387
352
        elif key == "R" or key == "_" or key == "ctrl k":
388
353
            self.server_proxy_object.RemoveClient(self.proxy
389
354
                                                  .object_path,
390
355
                                                  ignore_reply=True)
391
356
        elif key == "s":
392
 
            self.proxy.StartChecker(dbus_interface = client_interface,
393
 
                                    ignore_reply=True)
 
357
            self.proxy.Set(client_interface, "CheckerRunning",
 
358
                           dbus.Boolean(True), ignore_reply=True,
 
359
                           dbus_interface=dbus.PROPERTIES_IFACE)
394
360
        elif key == "S":
395
 
            self.proxy.StopChecker(dbus_interface = client_interface,
396
 
                                   ignore_reply=True)
 
361
            self.proxy.Set(client_interface, "CheckerRunning",
 
362
                           dbus.Boolean(False), ignore_reply=True,
 
363
                           dbus_interface=dbus.PROPERTIES_IFACE)
397
364
        elif key == "C":
398
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
            self.proxy.CheckedOK(dbus_interface=client_interface,
399
366
                                 ignore_reply=True)
400
367
        # xxx
401
368
#         elif key == "p" or key == "=":
406
373
#             self.open()
407
374
        else:
408
375
            return key
409
 
    
410
 
    def property_changed(self, property=None, value=None,
411
 
                         *args, **kwargs):
412
 
        """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.
413
379
        This overrides the method from MandosClientPropertyCache"""
414
 
        property_name = unicode(property)
415
 
        old_value = self.properties.get(property_name)
416
 
        super(MandosClientWidget, self).property_changed(
417
 
            property=property, value=value, *args, **kwargs)
418
 
        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):
419
386
            self.update()
420
387
 
421
388
 
424
391
    "down" key presses, thus not allowing any containing widgets to
425
392
    use them as an excuse to shift focus away from this widget.
426
393
    """
427
 
    def keypress(self, maxcolrow, key):
428
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
394
    def keypress(self, *args, **kwargs):
 
395
        ret = (super(ConstrainedListBox, self)
 
396
               .keypress(*args, **kwargs))
429
397
        if ret in ("up", "down"):
430
398
            return
431
399
        return ret
435
403
    """This is the entire user interface - the whole screen
436
404
    with boxes, lists of client widgets, etc.
437
405
    """
438
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
439
407
        DBusGMainLoop(set_as_default=True)
440
 
        
 
408
 
441
409
        self.screen = urwid.curses_display.Screen()
442
 
        
 
410
 
443
411
        self.screen.register_palette((
444
412
                ("normal",
445
413
                 "default", "default", None),
446
414
                ("bold",
447
 
                 "default", "default", "bold"),
 
415
                 "bold", "default", "bold"),
448
416
                ("underline-blink",
449
 
                 "default", "default", "underline"),
 
417
                 "underline,blink", "default", "underline,blink"),
450
418
                ("standout",
451
 
                 "default", "default", "standout"),
 
419
                 "standout", "default", "standout"),
452
420
                ("bold-underline-blink",
453
 
                 "default", "default", ("bold", "underline")),
 
421
                 "bold,underline,blink", "default",
 
422
                 "bold,underline,blink"),
454
423
                ("bold-standout",
455
 
                 "default", "default", ("bold", "standout")),
 
424
                 "bold,standout", "default", "bold,standout"),
456
425
                ("underline-blink-standout",
457
 
                 "default", "default", ("underline", "standout")),
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
458
428
                ("bold-underline-blink-standout",
459
 
                 "default", "default", ("bold", "underline",
460
 
                                          "standout")),
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
461
431
                ))
462
 
        
 
432
 
463
433
        if urwid.supports_unicode():
464
 
            self.divider = "─" # \u2500
465
 
            #self.divider = "━" # \u2501
 
434
            self.divider = "─"  # \u2500
466
435
        else:
467
 
            #self.divider = "-" # \u002d
468
 
            self.divider = "_" # \u005f
469
 
        
 
436
            self.divider = "_"  # \u005f
 
437
 
470
438
        self.screen.start()
471
 
        
 
439
 
472
440
        self.size = self.screen.get_cols_rows()
473
 
        
 
441
 
474
442
        self.clients = urwid.SimpleListWalker([])
475
443
        self.clients_dict = {}
476
 
        
 
444
 
477
445
        # We will add Text widgets to this list
478
446
        self.log = []
479
447
        self.max_log_length = max_log_length
480
 
        
 
448
 
 
449
        self.log_level = log_level
 
450
 
481
451
        # We keep a reference to the log widget so we can remove it
482
452
        # from the ListWalker without it getting destroyed
483
453
        self.logbox = ConstrainedListBox(self.log)
484
 
        
 
454
 
485
455
        # This keeps track of whether self.uilist currently has
486
456
        # self.logbox in it or not
487
457
        self.log_visible = True
488
458
        self.log_wrap = "any"
489
 
        
 
459
 
490
460
        self.rebuild()
491
461
        self.log_message_raw(("bold",
492
462
                              "Mandos Monitor version " + version))
493
463
        self.log_message_raw(("bold",
494
464
                              "q: Quit  ?: Help"))
495
 
        
 
465
 
496
466
        self.busname = domain + '.Mandos'
497
 
        self.main_loop = gobject.MainLoop()
498
 
        self.bus = dbus.SystemBus()
499
 
        mandos_dbus_objc = self.bus.get_object(
500
 
            self.busname, "/", follow_name_owner_changes=True)
501
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
502
 
                                          dbus_interface
503
 
                                          = server_interface)
504
 
        try:
505
 
            mandos_clients = (self.mandos_serv
506
 
                              .GetAllClientsWithProperties())
507
 
        except dbus.exceptions.DBusException:
508
 
            mandos_clients = dbus.Dictionary()
509
 
        
510
 
        (self.mandos_serv
511
 
         .connect_to_signal("ClientRemoved",
512
 
                            self.find_and_remove_client,
513
 
                            dbus_interface=server_interface,
514
 
                            byte_arrays=True))
515
 
        (self.mandos_serv
516
 
         .connect_to_signal("ClientAdded",
517
 
                            self.add_new_client,
518
 
                            dbus_interface=server_interface,
519
 
                            byte_arrays=True))
520
 
        (self.mandos_serv
521
 
         .connect_to_signal("ClientNotFound",
522
 
                            self.client_not_found,
523
 
                            dbus_interface=server_interface,
524
 
                            byte_arrays=True))
525
 
        for path, client in mandos_clients.iteritems():
526
 
            client_proxy_object = self.bus.get_object(self.busname,
527
 
                                                      path)
528
 
            self.add_client(MandosClientWidget(server_proxy_object
529
 
                                               =self.mandos_serv,
530
 
                                               proxy_object
531
 
                                               =client_proxy_object,
532
 
                                               properties=client,
533
 
                                               update_hook
534
 
                                               =self.refresh,
535
 
                                               delete_hook
536
 
                                               =self.remove_client,
537
 
                                               logger
538
 
                                               =self.log_message),
539
 
                            path=path)
540
 
    
 
467
        self.main_loop = GLib.MainLoop()
 
468
 
541
469
    def client_not_found(self, fingerprint, address):
542
 
        self.log_message(("Client with address %s and fingerprint %s"
543
 
                          " could not be found" % (address,
544
 
                                                    fingerprint)))
545
 
    
 
470
        self.log_message("Client with address {} and fingerprint {}"
 
471
                         " could not be found"
 
472
                         .format(address, fingerprint))
 
473
 
546
474
    def rebuild(self):
547
475
        """This rebuilds the User Interface.
548
476
        Call this when the widget layout needs to change"""
549
477
        self.uilist = []
550
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
551
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
552
480
                                                          clients),
553
 
                                       #header=urwid.Divider(),
 
481
                                       # header=urwid.Divider(),
554
482
                                       header=None,
555
 
                                       footer=
556
 
                                       urwid.Divider(div_char=
557
 
                                                     self.divider)))
 
483
                                       footer=urwid.Divider(
 
484
                                           div_char=self.divider)))
558
485
        if self.log_visible:
559
486
            self.uilist.append(self.logbox)
560
 
            pass
561
487
        self.topwidget = urwid.Pile(self.uilist)
562
 
    
563
 
    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
564
493
        timestamp = datetime.datetime.now().isoformat()
565
 
        self.log_message_raw(timestamp + ": " + message)
566
 
    
567
 
    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):
568
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
569
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
570
 
        if (self.max_log_length
571
 
            and len(self.log) > self.max_log_length):
572
 
            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]
573
505
        self.logbox.set_focus(len(self.logbox.body.contents),
574
506
                              coming_from="above")
575
507
        self.refresh()
576
 
    
 
508
 
577
509
    def toggle_log_display(self):
578
510
        """Toggle visibility of the log buffer."""
579
511
        self.log_visible = not self.log_visible
580
512
        self.rebuild()
581
 
        #self.log_message("Log visibility changed to: "
582
 
        #                 + unicode(self.log_visible))
583
 
    
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
 
515
 
584
516
    def change_log_display(self):
585
517
        """Change type of log display.
586
518
        Currently, this toggles wrapping of text lines."""
590
522
            self.log_wrap = "clip"
591
523
        for textwidget in self.log:
592
524
            textwidget.set_wrap_mode(self.log_wrap)
593
 
        #self.log_message("Wrap mode: " + self.log_wrap)
594
 
    
595
 
    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):
596
529
        """Find a client by its object path and remove it.
597
 
        
598
 
        This is connected to the ClientRemoved signal from the
 
530
 
 
531
        This is connected to the InterfacesRemoved signal from the
599
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
600
536
        try:
601
537
            client = self.clients_dict[path]
602
538
        except KeyError:
603
539
            # not found?
604
 
            self.log_message("Unknown client %r (%r) removed", name,
605
 
                             path)
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
606
542
            return
607
543
        client.delete()
608
 
    
609
 
    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
610
554
        client_proxy_object = self.bus.get_object(self.busname, path)
611
 
        self.add_client(MandosClientWidget(server_proxy_object
612
 
                                           =self.mandos_serv,
613
 
                                           proxy_object
614
 
                                           =client_proxy_object,
615
 
                                           update_hook
616
 
                                           =self.refresh,
617
 
                                           delete_hook
618
 
                                           =self.remove_client,
619
 
                                           logger
620
 
                                           =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])),
621
562
                        path=path)
622
 
    
 
563
 
623
564
    def add_client(self, client, path=None):
624
565
        self.clients.append(client)
625
566
        if path is None:
626
567
            path = client.proxy.object_path
627
568
        self.clients_dict[path] = client
628
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
629
570
        self.refresh()
630
 
    
 
571
 
631
572
    def remove_client(self, client, path=None):
632
573
        self.clients.remove(client)
633
574
        if path is None:
634
575
            path = client.proxy.object_path
635
576
        del self.clients_dict[path]
636
 
        if not self.clients_dict:
637
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
638
 
            # is completely emptied, we need to recreate it.
639
 
            self.clients = urwid.SimpleListWalker([])
640
 
            self.rebuild()
641
577
        self.refresh()
642
 
    
 
578
 
643
579
    def refresh(self):
644
580
        """Redraw the screen"""
645
581
        canvas = self.topwidget.render(self.size, focus=True)
646
582
        self.screen.draw_screen(self.size, canvas)
647
 
    
 
583
 
648
584
    def run(self):
649
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
 
650
629
        self.refresh()
651
 
        self._input_callback_tag = (gobject.io_add_watch
 
630
        self._input_callback_tag = (GLib.io_add_watch
652
631
                                    (sys.stdin.fileno(),
653
 
                                     gobject.IO_IN,
 
632
                                     GLib.IO_IN,
654
633
                                     self.process_input))
655
634
        self.main_loop.run()
656
635
        # Main loop has finished, we should close everything now
657
 
        gobject.source_remove(self._input_callback_tag)
 
636
        GLib.source_remove(self._input_callback_tag)
658
637
        self.screen.stop()
659
 
    
 
638
 
660
639
    def stop(self):
661
640
        self.main_loop.quit()
662
 
    
 
641
 
663
642
    def process_input(self, source, condition):
664
643
        keys = self.screen.get_input()
665
 
        translations = { "ctrl n": "down",      # Emacs
666
 
                         "ctrl p": "up",        # Emacs
667
 
                         "ctrl v": "page down", # Emacs
668
 
                         "meta v": "page up",   # Emacs
669
 
                         " ": "page down",      # less
670
 
                         "f": "page down",      # less
671
 
                         "b": "page up",        # less
672
 
                         "j": "down",           # vi
673
 
                         "k": "up",             # vi
674
 
                         }
 
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
                        }
675
654
        for key in keys:
676
655
            try:
677
656
                key = translations[key]
678
657
            except KeyError:    # :-)
679
658
                pass
680
 
            
 
659
 
681
660
            if key == "q" or key == "Q":
682
661
                self.stop()
683
662
                break
684
663
            elif key == "window resize":
685
664
                self.size = self.screen.get_cols_rows()
686
665
                self.refresh()
687
 
            elif key == "\f":  # Ctrl-L
 
666
            elif key == "ctrl l":
 
667
                self.screen.clear()
688
668
                self.refresh()
689
669
            elif key == "l" or key == "D":
690
670
                self.toggle_log_display()
702
682
                                            "?: Help",
703
683
                                            "l: Log window toggle",
704
684
                                            "TAB: Switch window",
705
 
                                            "w: Wrap (log)"))))
 
685
                                            "w: Wrap (log lines)",
 
686
                                            "v: Toggle verbose log",
 
687
                                            ))))
706
688
                self.log_message_raw(("bold",
707
689
                                      "  "
708
690
                                      .join(("Clients:",
721
703
                else:
722
704
                    self.topwidget.set_focus(self.logbox)
723
705
                self.refresh()
724
 
            #elif (key == "end" or key == "meta >" or key == "G"
725
 
            #      or key == ">"):
726
 
            #    pass            # xxx end-of-buffer
727
 
            #elif (key == "home" or key == "meta <" or key == "g"
728
 
            #      or key == "<"):
729
 
            #    pass            # xxx beginning-of-buffer
730
 
            #elif key == "ctrl e" or key == "$":
731
 
            #    pass            # xxx move-end-of-line
732
 
            #elif key == "ctrl a" or key == "^":
733
 
            #    pass            # xxx move-beginning-of-line
734
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
735
 
            #    pass            # xxx left
736
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
737
 
            #    pass            # xxx right
738
 
            #elif key == "a":
739
 
            #    pass            # scroll up log
740
 
            #elif key == "z":
741
 
            #    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
742
731
            elif self.topwidget.selectable():
743
732
                self.topwidget.keypress(self.size, key)
744
733
                self.refresh()
745
734
        return True
746
735
 
 
736
 
747
737
ui = UserInterface()
748
738
try:
749
739
    ui.run()
750
740
except KeyboardInterrupt:
751
741
    ui.screen.stop()
752
 
except Exception, e:
753
 
    ui.log_message(unicode(e))
 
742
except Exception as e:
 
743
    ui.log_message(str(e))
754
744
    ui.screen.stop()
755
745
    raise