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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 © 2009-2012 Teddy Hogeborn
7
 
# Copyright © 2009-2012 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
 
# 
 
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 = "1.5.3"
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
 
        
 
135
 
135
136
        # The widget shown normally
136
137
        self._text_widget = urwid.Text("")
137
138
        # The widget shown when we have focus
138
139
        self._focus_text_widget = urwid.Text("")
139
 
        super(MandosClientWidget, self).__init__(
140
 
            update_hook=update_hook, delete_hook=delete_hook,
141
 
            *args, **kwargs)
 
140
        super(MandosClientWidget, self).__init__(**kwargs)
142
141
        self.update()
143
142
        self.opened = False
144
 
        
145
 
        last_checked_ok = isoformat_to_datetime(self.properties
146
 
                                                ["LastCheckedOK"])
147
 
        
148
 
        if self.properties ["LastCheckerStatus"] != 0:
149
 
            self.using_timer(True)
150
 
        
151
 
        if self.need_approval:
152
 
            self.using_timer(True)
153
 
        
 
143
 
154
144
        self.match_objects = (
155
145
            self.proxy.connect_to_signal("CheckerCompleted",
156
146
                                         self.checker_completed,
172
162
                                         self.rejected,
173
163
                                         client_interface,
174
164
                                         byte_arrays=True))
175
 
        #self.logger('Created client {0}'
176
 
        #            .format(self.properties["Name"]))
177
 
    
178
 
    def property_changed(self, property=None, value=None):
179
 
        super(self, MandosClientWidget).property_changed(property,
180
 
                                                         value)
181
 
        if property == "ApprovalPending":
182
 
            using_timer(bool(value))
183
 
        if property == "LastCheckerStatus":
184
 
            using_timer(value != 0)
185
 
            #self.logger('Checker for client {0} (command "{1}") was '
186
 
            #            ' successful'.format(self.properties["Name"],
187
 
            #                                 command))
188
 
    
 
165
        self.logger('Created client {}'
 
166
                    .format(self.properties["Name"]), level=0)
 
167
 
189
168
    def using_timer(self, flag):
190
169
        """Call this method with True or False when timer should be
191
170
        activated or deactivated.
192
171
        """
193
 
        old = self._update_timer_callback_lock
194
 
        if flag:
195
 
            self._update_timer_callback_lock += 1
196
 
        else:
197
 
            self._update_timer_callback_lock -= 1
198
 
        if old == 0 and self._update_timer_callback_lock:
 
172
        if flag and self._update_timer_callback_tag is None:
199
173
            # Will update the shown timer value every second
200
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
174
            self._update_timer_callback_tag = (GLib.timeout_add
201
175
                                               (1000,
202
176
                                                self.update_timer))
203
 
        elif old and self._update_timer_callback_lock == 0:
204
 
            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)
205
179
            self._update_timer_callback_tag = None
206
 
    
 
180
 
207
181
    def checker_completed(self, exitstatus, condition, command):
208
182
        if exitstatus == 0:
 
183
            self.logger('Checker for client {} (command "{}")'
 
184
                        ' succeeded'.format(self.properties["Name"],
 
185
                                            command), level=0)
209
186
            self.update()
210
187
            return
211
188
        # Checker failed
212
189
        if os.WIFEXITED(condition):
213
 
            self.logger('Checker for client {0} (command "{1}")'
214
 
                        ' failed with exit code {2}'
 
190
            self.logger('Checker for client {} (command "{}") failed'
 
191
                        ' with exit code {}'
215
192
                        .format(self.properties["Name"], command,
216
193
                                os.WEXITSTATUS(condition)))
217
194
        elif os.WIFSIGNALED(condition):
218
 
            self.logger('Checker for client {0} (command "{1}") was'
219
 
                        ' killed by signal {2}'
 
195
            self.logger('Checker for client {} (command "{}") was'
 
196
                        ' killed by signal {}'
220
197
                        .format(self.properties["Name"], command,
221
198
                                os.WTERMSIG(condition)))
222
 
        elif os.WCOREDUMP(condition):
223
 
            self.logger('Checker for client {0} (command "{1}")'
224
 
                        ' dumped core'
225
 
                        .format(self.properties["Name"], command))
226
 
        else:
227
 
            self.logger('Checker for client {0} completed'
228
 
                        ' mysteriously'
229
 
                        .format(self.properties["Name"]))
230
199
        self.update()
231
 
    
 
200
 
232
201
    def checker_started(self, command):
233
 
        """Server signals that a checker started. This could be useful
234
 
           to log in the future. """
235
 
        #self.logger('Client {0} started checker "{1}"'
236
 
        #            .format(self.properties["Name"],
237
 
        #                    unicode(command)))
238
 
        pass
239
 
    
 
202
        """Server signals that a checker started."""
 
203
        self.logger('Client {} started checker "{}"'
 
204
                    .format(self.properties["Name"],
 
205
                            command), level=0)
 
206
 
240
207
    def got_secret(self):
241
 
        self.logger('Client {0} received its secret'
 
208
        self.logger('Client {} received its secret'
242
209
                    .format(self.properties["Name"]))
243
 
    
 
210
 
244
211
    def need_approval(self, timeout, default):
245
212
        if not default:
246
 
            message = 'Client {0} needs approval within {1} seconds'
 
213
            message = 'Client {} needs approval within {} seconds'
247
214
        else:
248
 
            message = 'Client {0} will get its secret in {1} seconds'
 
215
            message = 'Client {} will get its secret in {} seconds'
249
216
        self.logger(message.format(self.properties["Name"],
250
217
                                   timeout/1000))
251
 
        self.using_timer(True)
252
 
    
 
218
 
253
219
    def rejected(self, reason):
254
 
        self.logger('Client {0} was rejected; reason: {1}'
 
220
        self.logger('Client {} was rejected; reason: {}'
255
221
                    .format(self.properties["Name"], reason))
256
 
    
 
222
 
257
223
    def selectable(self):
258
224
        """Make this a "selectable" widget.
259
225
        This overrides the method from urwid.FlowWidget."""
260
226
        return True
261
 
    
 
227
 
262
228
    def rows(self, maxcolrow, focus=False):
263
229
        """How many rows this widget will occupy might depend on
264
230
        whether we have focus or not.
265
231
        This overrides the method from urwid.FlowWidget"""
266
232
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
267
 
    
 
233
 
268
234
    def current_widget(self, focus=False):
269
235
        if focus or self.opened:
270
236
            return self._focus_widget
271
237
        return self._widget
272
 
    
 
238
 
273
239
    def update(self):
274
240
        "Called when what is visible on the screen should be updated."
275
241
        # How to add standout mode to a style
276
 
        with_standout = { "normal": "standout",
277
 
                          "bold": "bold-standout",
278
 
                          "underline-blink":
279
 
                              "underline-blink-standout",
280
 
                          "bold-underline-blink":
281
 
                              "bold-underline-blink-standout",
282
 
                          }
 
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
                         }
283
249
 
284
250
        # Rebuild focus and non-focus widgets using current properties
285
251
 
287
253
        base = '{name}: '.format(name=self.properties["Name"])
288
254
        if not self.properties["Enabled"]:
289
255
            message = "DISABLED"
 
256
            self.using_timer(False)
290
257
        elif self.properties["ApprovalPending"]:
291
 
            timeout = datetime.timedelta(milliseconds
292
 
                                         = self.properties
293
 
                                         ["ApprovalDelay"])
 
258
            timeout = datetime.timedelta(
 
259
                milliseconds=self.properties["ApprovalDelay"])
294
260
            last_approval_request = isoformat_to_datetime(
295
261
                self.properties["LastApprovalRequest"])
296
262
            if last_approval_request is not None:
297
 
                timer = timeout - (datetime.datetime.utcnow()
298
 
                                   - last_approval_request)
 
263
                timer = max(timeout - (datetime.datetime.utcnow()
 
264
                                       - last_approval_request),
 
265
                            datetime.timedelta())
299
266
            else:
300
267
                timer = datetime.timedelta()
301
268
            if self.properties["ApprovedByDefault"]:
302
 
                message = "Approval in {0}. (d)eny?"
 
269
                message = "Approval in {}. (d)eny?"
303
270
            else:
304
 
                message = "Denial in {0}. (a)pprove?"
305
 
            message = message.format(unicode(timer).rsplit(".", 1)[0])
 
271
                message = "Denial in {}. (a)pprove?"
 
272
            message = message.format(str(timer).rsplit(".", 1)[0])
 
273
            self.using_timer(True)
306
274
        elif self.properties["LastCheckerStatus"] != 0:
307
 
            # When checker has failed, print a timer until client expires
 
275
            # When checker has failed, show timer until client expires
308
276
            expires = self.properties["Expires"]
309
277
            if expires == "":
310
278
                timer = datetime.timedelta(0)
311
279
            else:
312
 
                expires = datetime.datetime.strptime(expires,
313
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
314
 
                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())
315
284
            message = ('A checker has failed! Time until client'
316
 
                       ' gets disabled: {0}'
317
 
                       .format(unicode(timer).rsplit(".", 1)[0]))
 
285
                       ' gets disabled: {}'
 
286
                       .format(str(timer).rsplit(".", 1)[0]))
 
287
            self.using_timer(True)
318
288
        else:
319
289
            message = "enabled"
320
 
        self._text = "{0}{1}".format(base, message)
321
 
            
 
290
            self.using_timer(False)
 
291
        self._text = "{}{}".format(base, message)
 
292
 
322
293
        if not urwid.supports_unicode():
323
294
            self._text = self._text.encode("ascii", "replace")
324
295
        textlist = [("normal", self._text)]
334
305
        # Run update hook, if any
335
306
        if self.update_hook is not None:
336
307
            self.update_hook()
337
 
    
 
308
 
338
309
    def update_timer(self):
339
 
        """called by gobject. Will indefinitely loop until
340
 
        gobject.source_remove() on tag is called"""
 
310
        """called by GLib. Will indefinitely loop until
 
311
        GLib.source_remove() on tag is called
 
312
        """
341
313
        self.update()
342
314
        return True             # Keep calling this
343
 
    
344
 
    def delete(self, *args, **kwargs):
 
315
 
 
316
    def delete(self, **kwargs):
345
317
        if self._update_timer_callback_tag is not None:
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
318
            GLib.source_remove(self._update_timer_callback_tag)
347
319
            self._update_timer_callback_tag = None
348
320
        for match in self.match_objects:
349
321
            match.remove()
350
322
        self.match_objects = ()
351
323
        if self.delete_hook is not None:
352
324
            self.delete_hook(self)
353
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
354
 
    
 
325
        return super(MandosClientWidget, self).delete(**kwargs)
 
326
 
355
327
    def render(self, maxcolrow, focus=False):
356
328
        """Render differently if we have focus.
357
329
        This overrides the method from urwid.FlowWidget"""
358
330
        return self.current_widget(focus).render(maxcolrow,
359
331
                                                 focus=focus)
360
 
    
 
332
 
361
333
    def keypress(self, maxcolrow, key):
362
334
        """Handle keys.
363
335
        This overrides the method from urwid.FlowWidget"""
364
336
        if key == "+":
365
 
            self.proxy.Enable(dbus_interface = client_interface,
366
 
                              ignore_reply=True)
 
337
            self.proxy.Set(client_interface, "Enabled",
 
338
                           dbus.Boolean(True), ignore_reply=True,
 
339
                           dbus_interface=dbus.PROPERTIES_IFACE)
367
340
        elif key == "-":
368
 
            self.proxy.Disable(dbus_interface = client_interface,
369
 
                               ignore_reply=True)
 
341
            self.proxy.Set(client_interface, "Enabled", False,
 
342
                           ignore_reply=True,
 
343
                           dbus_interface=dbus.PROPERTIES_IFACE)
370
344
        elif key == "a":
371
345
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
372
 
                               dbus_interface = client_interface,
 
346
                               dbus_interface=client_interface,
373
347
                               ignore_reply=True)
374
348
        elif key == "d":
375
349
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
376
 
                                  dbus_interface = client_interface,
 
350
                               dbus_interface=client_interface,
377
351
                               ignore_reply=True)
378
352
        elif key == "R" or key == "_" or key == "ctrl k":
379
353
            self.server_proxy_object.RemoveClient(self.proxy
380
354
                                                  .object_path,
381
355
                                                  ignore_reply=True)
382
356
        elif key == "s":
383
 
            self.proxy.StartChecker(dbus_interface = client_interface,
384
 
                                    ignore_reply=True)
 
357
            self.proxy.Set(client_interface, "CheckerRunning",
 
358
                           dbus.Boolean(True), ignore_reply=True,
 
359
                           dbus_interface=dbus.PROPERTIES_IFACE)
385
360
        elif key == "S":
386
 
            self.proxy.StopChecker(dbus_interface = client_interface,
387
 
                                   ignore_reply=True)
 
361
            self.proxy.Set(client_interface, "CheckerRunning",
 
362
                           dbus.Boolean(False), ignore_reply=True,
 
363
                           dbus_interface=dbus.PROPERTIES_IFACE)
388
364
        elif key == "C":
389
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
            self.proxy.CheckedOK(dbus_interface=client_interface,
390
366
                                 ignore_reply=True)
391
367
        # xxx
392
368
#         elif key == "p" or key == "=":
397
373
#             self.open()
398
374
        else:
399
375
            return key
400
 
    
401
 
    def property_changed(self, property=None, value=None,
402
 
                         *args, **kwargs):
403
 
        """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.
404
379
        This overrides the method from MandosClientPropertyCache"""
405
 
        property_name = unicode(property)
406
 
        old_value = self.properties.get(property_name)
407
 
        super(MandosClientWidget, self).property_changed(
408
 
            property=property, value=value, *args, **kwargs)
409
 
        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):
410
386
            self.update()
411
387
 
412
388
 
415
391
    "down" key presses, thus not allowing any containing widgets to
416
392
    use them as an excuse to shift focus away from this widget.
417
393
    """
418
 
    def keypress(self, maxcolrow, key):
419
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
394
    def keypress(self, *args, **kwargs):
 
395
        ret = (super(ConstrainedListBox, self)
 
396
               .keypress(*args, **kwargs))
420
397
        if ret in ("up", "down"):
421
398
            return
422
399
        return ret
426
403
    """This is the entire user interface - the whole screen
427
404
    with boxes, lists of client widgets, etc.
428
405
    """
429
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
430
407
        DBusGMainLoop(set_as_default=True)
431
 
        
 
408
 
432
409
        self.screen = urwid.curses_display.Screen()
433
 
        
 
410
 
434
411
        self.screen.register_palette((
435
412
                ("normal",
436
413
                 "default", "default", None),
437
414
                ("bold",
438
 
                 "default", "default", "bold"),
 
415
                 "bold", "default", "bold"),
439
416
                ("underline-blink",
440
 
                 "default", "default", "underline"),
 
417
                 "underline,blink", "default", "underline,blink"),
441
418
                ("standout",
442
 
                 "default", "default", "standout"),
 
419
                 "standout", "default", "standout"),
443
420
                ("bold-underline-blink",
444
 
                 "default", "default", ("bold", "underline")),
 
421
                 "bold,underline,blink", "default",
 
422
                 "bold,underline,blink"),
445
423
                ("bold-standout",
446
 
                 "default", "default", ("bold", "standout")),
 
424
                 "bold,standout", "default", "bold,standout"),
447
425
                ("underline-blink-standout",
448
 
                 "default", "default", ("underline", "standout")),
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
449
428
                ("bold-underline-blink-standout",
450
 
                 "default", "default", ("bold", "underline",
451
 
                                          "standout")),
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
452
431
                ))
453
 
        
 
432
 
454
433
        if urwid.supports_unicode():
455
 
            self.divider = "─" # \u2500
456
 
            #self.divider = "━" # \u2501
 
434
            self.divider = "─"  # \u2500
457
435
        else:
458
 
            #self.divider = "-" # \u002d
459
 
            self.divider = "_" # \u005f
460
 
        
 
436
            self.divider = "_"  # \u005f
 
437
 
461
438
        self.screen.start()
462
 
        
 
439
 
463
440
        self.size = self.screen.get_cols_rows()
464
 
        
 
441
 
465
442
        self.clients = urwid.SimpleListWalker([])
466
443
        self.clients_dict = {}
467
 
        
 
444
 
468
445
        # We will add Text widgets to this list
469
446
        self.log = []
470
447
        self.max_log_length = max_log_length
471
 
        
 
448
 
 
449
        self.log_level = log_level
 
450
 
472
451
        # We keep a reference to the log widget so we can remove it
473
452
        # from the ListWalker without it getting destroyed
474
453
        self.logbox = ConstrainedListBox(self.log)
475
 
        
 
454
 
476
455
        # This keeps track of whether self.uilist currently has
477
456
        # self.logbox in it or not
478
457
        self.log_visible = True
479
458
        self.log_wrap = "any"
480
 
        
 
459
 
481
460
        self.rebuild()
482
461
        self.log_message_raw(("bold",
483
462
                              "Mandos Monitor version " + version))
484
463
        self.log_message_raw(("bold",
485
464
                              "q: Quit  ?: Help"))
486
 
        
 
465
 
487
466
        self.busname = domain + '.Mandos'
488
 
        self.main_loop = gobject.MainLoop()
489
 
    
 
467
        self.main_loop = GLib.MainLoop()
 
468
 
490
469
    def client_not_found(self, fingerprint, address):
491
 
        self.log_message("Client with address {0} and fingerprint"
492
 
                         " {1} could not be found"
 
470
        self.log_message("Client with address {} and fingerprint {}"
 
471
                         " could not be found"
493
472
                         .format(address, fingerprint))
494
 
    
 
473
 
495
474
    def rebuild(self):
496
475
        """This rebuilds the User Interface.
497
476
        Call this when the widget layout needs to change"""
498
477
        self.uilist = []
499
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
500
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
501
480
                                                          clients),
502
 
                                       #header=urwid.Divider(),
 
481
                                       # header=urwid.Divider(),
503
482
                                       header=None,
504
 
                                       footer=
505
 
                                       urwid.Divider(div_char=
506
 
                                                     self.divider)))
 
483
                                       footer=urwid.Divider(
 
484
                                           div_char=self.divider)))
507
485
        if self.log_visible:
508
486
            self.uilist.append(self.logbox)
509
487
        self.topwidget = urwid.Pile(self.uilist)
510
 
    
511
 
    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
512
493
        timestamp = datetime.datetime.now().isoformat()
513
 
        self.log_message_raw(timestamp + ": " + message)
514
 
    
515
 
    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):
516
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
517
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
518
 
        if (self.max_log_length
519
 
            and len(self.log) > self.max_log_length):
520
 
            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]
521
505
        self.logbox.set_focus(len(self.logbox.body.contents),
522
506
                              coming_from="above")
523
507
        self.refresh()
524
 
    
 
508
 
525
509
    def toggle_log_display(self):
526
510
        """Toggle visibility of the log buffer."""
527
511
        self.log_visible = not self.log_visible
528
512
        self.rebuild()
529
 
        #self.log_message("Log visibility changed to: "
530
 
        #                 + unicode(self.log_visible))
531
 
    
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
 
515
 
532
516
    def change_log_display(self):
533
517
        """Change type of log display.
534
518
        Currently, this toggles wrapping of text lines."""
538
522
            self.log_wrap = "clip"
539
523
        for textwidget in self.log:
540
524
            textwidget.set_wrap_mode(self.log_wrap)
541
 
        #self.log_message("Wrap mode: " + self.log_wrap)
542
 
    
543
 
    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):
544
529
        """Find a client by its object path and remove it.
545
 
        
546
 
        This is connected to the ClientRemoved signal from the
 
530
 
 
531
        This is connected to the InterfacesRemoved signal from the
547
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
548
536
        try:
549
537
            client = self.clients_dict[path]
550
538
        except KeyError:
551
539
            # not found?
552
 
            self.log_message("Unknown client {0!r} ({1!r}) removed"
553
 
                             .format(name, path))
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
554
542
            return
555
543
        client.delete()
556
 
    
557
 
    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
558
554
        client_proxy_object = self.bus.get_object(self.busname, path)
559
 
        self.add_client(MandosClientWidget(server_proxy_object
560
 
                                           =self.mandos_serv,
561
 
                                           proxy_object
562
 
                                           =client_proxy_object,
563
 
                                           update_hook
564
 
                                           =self.refresh,
565
 
                                           delete_hook
566
 
                                           =self.remove_client,
567
 
                                           logger
568
 
                                           =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])),
569
562
                        path=path)
570
 
    
 
563
 
571
564
    def add_client(self, client, path=None):
572
565
        self.clients.append(client)
573
566
        if path is None:
574
567
            path = client.proxy.object_path
575
568
        self.clients_dict[path] = client
576
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
577
570
        self.refresh()
578
 
    
 
571
 
579
572
    def remove_client(self, client, path=None):
580
573
        self.clients.remove(client)
581
574
        if path is None:
582
575
            path = client.proxy.object_path
583
576
        del self.clients_dict[path]
584
 
        if not self.clients_dict:
585
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
586
 
            # is completely emptied, we need to recreate it.
587
 
            self.clients = urwid.SimpleListWalker([])
588
 
            self.rebuild()
589
577
        self.refresh()
590
 
    
 
578
 
591
579
    def refresh(self):
592
580
        """Redraw the screen"""
593
581
        canvas = self.topwidget.render(self.size, focus=True)
594
582
        self.screen.draw_screen(self.size, canvas)
595
 
    
 
583
 
596
584
    def run(self):
597
585
        """Start the main loop and exit when it's done."""
598
586
        self.bus = dbus.SystemBus()
599
587
        mandos_dbus_objc = self.bus.get_object(
600
588
            self.busname, "/", follow_name_owner_changes=True)
601
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
602
 
                                          dbus_interface
603
 
                                          = server_interface)
 
589
        self.mandos_serv = dbus.Interface(
 
590
            mandos_dbus_objc, dbus_interface=server_interface)
604
591
        try:
605
592
            mandos_clients = (self.mandos_serv
606
593
                              .GetAllClientsWithProperties())
 
594
            if not mandos_clients:
 
595
                self.log_message_raw(("bold",
 
596
                                      "Note: Server has no clients."))
607
597
        except dbus.exceptions.DBusException:
 
598
            self.log_message_raw(("bold",
 
599
                                  "Note: No Mandos server running."))
608
600
            mandos_clients = dbus.Dictionary()
609
 
        
 
601
 
610
602
        (self.mandos_serv
611
 
         .connect_to_signal("ClientRemoved",
 
603
         .connect_to_signal("InterfacesRemoved",
612
604
                            self.find_and_remove_client,
613
 
                            dbus_interface=server_interface,
 
605
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
614
606
                            byte_arrays=True))
615
607
        (self.mandos_serv
616
 
         .connect_to_signal("ClientAdded",
 
608
         .connect_to_signal("InterfacesAdded",
617
609
                            self.add_new_client,
618
 
                            dbus_interface=server_interface,
 
610
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
619
611
                            byte_arrays=True))
620
612
        (self.mandos_serv
621
613
         .connect_to_signal("ClientNotFound",
622
614
                            self.client_not_found,
623
615
                            dbus_interface=server_interface,
624
616
                            byte_arrays=True))
625
 
        for path, client in mandos_clients.iteritems():
 
617
        for path, client in mandos_clients.items():
626
618
            client_proxy_object = self.bus.get_object(self.busname,
627
619
                                                      path)
628
 
            self.add_client(MandosClientWidget(server_proxy_object
629
 
                                               =self.mandos_serv,
630
 
                                               proxy_object
631
 
                                               =client_proxy_object,
632
 
                                               properties=client,
633
 
                                               update_hook
634
 
                                               =self.refresh,
635
 
                                               delete_hook
636
 
                                               =self.remove_client,
637
 
                                               logger
638
 
                                               =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),
639
627
                            path=path)
640
628
 
641
629
        self.refresh()
642
 
        self._input_callback_tag = (gobject.io_add_watch
 
630
        self._input_callback_tag = (GLib.io_add_watch
643
631
                                    (sys.stdin.fileno(),
644
 
                                     gobject.IO_IN,
 
632
                                     GLib.IO_IN,
645
633
                                     self.process_input))
646
634
        self.main_loop.run()
647
635
        # Main loop has finished, we should close everything now
648
 
        gobject.source_remove(self._input_callback_tag)
 
636
        GLib.source_remove(self._input_callback_tag)
649
637
        self.screen.stop()
650
 
    
 
638
 
651
639
    def stop(self):
652
640
        self.main_loop.quit()
653
 
    
 
641
 
654
642
    def process_input(self, source, condition):
655
643
        keys = self.screen.get_input()
656
 
        translations = { "ctrl n": "down",      # Emacs
657
 
                         "ctrl p": "up",        # Emacs
658
 
                         "ctrl v": "page down", # Emacs
659
 
                         "meta v": "page up",   # Emacs
660
 
                         " ": "page down",      # less
661
 
                         "f": "page down",      # less
662
 
                         "b": "page up",        # less
663
 
                         "j": "down",           # vi
664
 
                         "k": "up",             # vi
665
 
                         }
 
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
                        }
666
654
        for key in keys:
667
655
            try:
668
656
                key = translations[key]
669
657
            except KeyError:    # :-)
670
658
                pass
671
 
            
 
659
 
672
660
            if key == "q" or key == "Q":
673
661
                self.stop()
674
662
                break
675
663
            elif key == "window resize":
676
664
                self.size = self.screen.get_cols_rows()
677
665
                self.refresh()
678
 
            elif key == "\f":  # Ctrl-L
 
666
            elif key == "ctrl l":
 
667
                self.screen.clear()
679
668
                self.refresh()
680
669
            elif key == "l" or key == "D":
681
670
                self.toggle_log_display()
693
682
                                            "?: Help",
694
683
                                            "l: Log window toggle",
695
684
                                            "TAB: Switch window",
696
 
                                            "w: Wrap (log)"))))
 
685
                                            "w: Wrap (log lines)",
 
686
                                            "v: Toggle verbose log",
 
687
                                            ))))
697
688
                self.log_message_raw(("bold",
698
689
                                      "  "
699
690
                                      .join(("Clients:",
712
703
                else:
713
704
                    self.topwidget.set_focus(self.logbox)
714
705
                self.refresh()
715
 
            #elif (key == "end" or key == "meta >" or key == "G"
716
 
            #      or key == ">"):
717
 
            #    pass            # xxx end-of-buffer
718
 
            #elif (key == "home" or key == "meta <" or key == "g"
719
 
            #      or key == "<"):
720
 
            #    pass            # xxx beginning-of-buffer
721
 
            #elif key == "ctrl e" or key == "$":
722
 
            #    pass            # xxx move-end-of-line
723
 
            #elif key == "ctrl a" or key == "^":
724
 
            #    pass            # xxx move-beginning-of-line
725
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
726
 
            #    pass            # xxx left
727
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
728
 
            #    pass            # xxx right
729
 
            #elif key == "a":
730
 
            #    pass            # scroll up log
731
 
            #elif key == "z":
732
 
            #    pass            # scroll down log
 
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
733
731
            elif self.topwidget.selectable():
734
732
                self.topwidget.keypress(self.size, key)
735
733
                self.refresh()
736
734
        return True
737
735
 
 
736
 
738
737
ui = UserInterface()
739
738
try:
740
739
    ui.run()
741
740
except KeyboardInterrupt:
742
741
    ui.screen.stop()
743
 
except Exception, e:
744
 
    ui.log_message(unicode(e))
 
742
except Exception as e:
 
743
    ui.log_message(str(e))
745
744
    ui.screen.stop()
746
745
    raise