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Viewing changes to mandos-monitor

Bug fix: mandos-client needs GnuPG but lacked a dependency on it.  The
Mandos server, on the other hand, did not need GnuPG but declared an
incorrect dependency on it.

* debian/control (Package: mandos/Depends): Removed "gnupg (< 2)".
  (Package: mandos-client/Depends): Added "gnupg (<< 2)".

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Lines of Context:
1
 
#!/usr/bin/python3 -bb
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
7
import os
36
 
import warnings
 
8
import signal
 
9
 
37
10
import datetime
38
11
 
39
12
import urwid.curses_display
40
13
import urwid
41
14
 
42
15
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
16
import gobject
44
17
 
45
18
import dbus
46
19
 
 
20
import UserList
 
21
 
47
22
import locale
48
23
 
49
 
import logging
50
 
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
24
locale.setlocale(locale.LC_ALL, u'')
57
25
 
58
26
# Some useful constants
59
 
domain = 'se.recompile'
 
27
domain = 'se.bsnet.fukt'
60
28
server_interface = domain + '.Mandos'
61
29
client_interface = domain + '.Mandos.Client'
62
 
version = "1.8.9"
63
 
 
64
 
try:
65
 
    dbus.OBJECT_MANAGER_IFACE
66
 
except AttributeError:
67
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
68
 
 
69
 
 
70
 
def isoformat_to_datetime(iso):
71
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
72
 
    if not iso:
73
 
        return None
74
 
    d, t = iso.split("T", 1)
75
 
    year, month, day = d.split("-", 2)
76
 
    hour, minute, second = t.split(":", 2)
77
 
    second, fraction = divmod(float(second), 1)
78
 
    return datetime.datetime(int(year),
79
 
                             int(month),
80
 
                             int(day),
81
 
                             int(hour),
82
 
                             int(minute),
83
 
                             int(second),            # Whole seconds
84
 
                             int(fraction*1000000))  # Microseconds
85
 
 
 
30
version = "1.0.14"
 
31
 
 
32
# Always run in monochrome mode
 
33
urwid.curses_display.curses.has_colors = lambda : False
 
34
 
 
35
# Urwid doesn't support blinking, but we want it.  Since we have no
 
36
# use for underline on its own, we make underline also always blink.
 
37
urwid.curses_display.curses.A_UNDERLINE |= (
 
38
    urwid.curses_display.curses.A_BLINK)
86
39
 
87
40
class MandosClientPropertyCache(object):
88
41
    """This wraps a Mandos Client D-Bus proxy object, caches the
89
42
    properties and calls a hook function when any of them are
90
43
    changed.
91
44
    """
92
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
93
 
        self.proxy = proxy_object  # Mandos Client proxy object
94
 
        self.properties = dict() if properties is None else properties
95
 
        self.property_changed_match = (
96
 
            self.proxy.connect_to_signal("PropertiesChanged",
97
 
                                         self.properties_changed,
98
 
                                         dbus.PROPERTIES_IFACE,
99
 
                                         byte_arrays=True))
100
 
 
101
 
        if properties is None:
102
 
            self.properties.update(self.proxy.GetAll(
103
 
                client_interface,
104
 
                dbus_interface=dbus.PROPERTIES_IFACE))
105
 
 
106
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
107
 
 
108
 
    def properties_changed(self, interface, properties, invalidated):
109
 
        """This is called whenever we get a PropertiesChanged signal
110
 
        It updates the changed properties in the "properties" dict.
 
45
    def __init__(self, proxy_object=None, *args, **kwargs):
 
46
        self.proxy = proxy_object # Mandos Client proxy object
 
47
        
 
48
        self.properties = dict()
 
49
        self.proxy.connect_to_signal(u"PropertyChanged",
 
50
                                     self.property_changed,
 
51
                                     client_interface,
 
52
                                     byte_arrays=True)
 
53
 
 
54
        self.properties.update(
 
55
            self.proxy.GetAll(client_interface,
 
56
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
57
        super(MandosClientPropertyCache, self).__init__(
 
58
            proxy_object=proxy_object, *args, **kwargs)
 
59
    
 
60
    def property_changed(self, property=None, value=None):
 
61
        """This is called whenever we get a PropertyChanged signal
 
62
        It updates the changed property in the "properties" dict.
111
63
        """
112
64
        # Update properties dict with new value
113
 
        if interface == client_interface:
114
 
            self.properties.update(properties)
115
 
 
116
 
    def delete(self):
117
 
        self.property_changed_match.remove()
 
65
        self.properties[property] = value
118
66
 
119
67
 
120
68
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
121
69
    """A Mandos Client which is visible on the screen.
122
70
    """
123
 
 
 
71
    
124
72
    def __init__(self, server_proxy_object=None, update_hook=None,
125
 
                 delete_hook=None, logger=None, **kwargs):
 
73
                 delete_hook=None, logger=None, *args, **kwargs):
126
74
        # Called on update
127
75
        self.update_hook = update_hook
128
76
        # Called on delete
131
79
        self.server_proxy_object = server_proxy_object
132
80
        # Logger
133
81
        self.logger = logger
134
 
 
135
 
        self._update_timer_callback_tag = None
136
 
 
 
82
        
137
83
        # The widget shown normally
138
 
        self._text_widget = urwid.Text("")
 
84
        self._text_widget = urwid.Text(u"")
139
85
        # The widget shown when we have focus
140
 
        self._focus_text_widget = urwid.Text("")
141
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
86
        self._focus_text_widget = urwid.Text(u"")
 
87
        super(MandosClientWidget, self).__init__(
 
88
            update_hook=update_hook, delete_hook=delete_hook,
 
89
            *args, **kwargs)
142
90
        self.update()
143
91
        self.opened = False
144
 
 
145
 
        self.match_objects = (
146
 
            self.proxy.connect_to_signal("CheckerCompleted",
147
 
                                         self.checker_completed,
148
 
                                         client_interface,
149
 
                                         byte_arrays=True),
150
 
            self.proxy.connect_to_signal("CheckerStarted",
151
 
                                         self.checker_started,
152
 
                                         client_interface,
153
 
                                         byte_arrays=True),
154
 
            self.proxy.connect_to_signal("GotSecret",
155
 
                                         self.got_secret,
156
 
                                         client_interface,
157
 
                                         byte_arrays=True),
158
 
            self.proxy.connect_to_signal("NeedApproval",
159
 
                                         self.need_approval,
160
 
                                         client_interface,
161
 
                                         byte_arrays=True),
162
 
            self.proxy.connect_to_signal("Rejected",
163
 
                                         self.rejected,
164
 
                                         client_interface,
165
 
                                         byte_arrays=True))
166
 
        self.logger('Created client {}'
167
 
                    .format(self.properties["Name"]), level=0)
168
 
 
169
 
    def using_timer(self, flag):
170
 
        """Call this method with True or False when timer should be
171
 
        activated or deactivated.
172
 
        """
173
 
        if flag and self._update_timer_callback_tag is None:
174
 
            # Will update the shown timer value every second
175
 
            self._update_timer_callback_tag = (GLib.timeout_add
176
 
                                               (1000,
177
 
                                                self.update_timer))
178
 
        elif not (flag or self._update_timer_callback_tag is None):
179
 
            GLib.source_remove(self._update_timer_callback_tag)
180
 
            self._update_timer_callback_tag = None
181
 
 
 
92
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
93
                                     self.checker_completed,
 
94
                                     client_interface,
 
95
                                     byte_arrays=True)
 
96
        self.proxy.connect_to_signal(u"CheckerStarted",
 
97
                                     self.checker_started,
 
98
                                     client_interface,
 
99
                                     byte_arrays=True)
 
100
        self.proxy.connect_to_signal(u"GotSecret",
 
101
                                     self.got_secret,
 
102
                                     client_interface,
 
103
                                     byte_arrays=True)
 
104
        self.proxy.connect_to_signal(u"Rejected",
 
105
                                     self.rejected,
 
106
                                     client_interface,
 
107
                                     byte_arrays=True)
 
108
    
182
109
    def checker_completed(self, exitstatus, condition, command):
183
110
        if exitstatus == 0:
184
 
            self.logger('Checker for client {} (command "{}")'
185
 
                        ' succeeded'.format(self.properties["Name"],
186
 
                                            command), level=0)
187
 
            self.update()
 
111
            self.logger(u'Checker for client %s (command "%s")'
 
112
                        u' was successful'
 
113
                        % (self.properties[u"name"], command))
188
114
            return
189
 
        # Checker failed
190
115
        if os.WIFEXITED(condition):
191
 
            self.logger('Checker for client {} (command "{}") failed'
192
 
                        ' with exit code {}'
193
 
                        .format(self.properties["Name"], command,
194
 
                                os.WEXITSTATUS(condition)))
195
 
        elif os.WIFSIGNALED(condition):
196
 
            self.logger('Checker for client {} (command "{}") was'
197
 
                        ' killed by signal {}'
198
 
                        .format(self.properties["Name"], command,
199
 
                                os.WTERMSIG(condition)))
200
 
        self.update()
201
 
 
 
116
            self.logger(u'Checker for client %s (command "%s")'
 
117
                        u' failed with exit code %s'
 
118
                        % (self.properties[u"name"], command,
 
119
                           os.WEXITSTATUS(condition)))
 
120
            return
 
121
        if os.WIFSIGNALED(condition):
 
122
            self.logger(u'Checker for client %s (command "%s")'
 
123
                        u' was killed by signal %s'
 
124
                        % (self.properties[u"name"], command,
 
125
                           os.WTERMSIG(condition)))
 
126
            return
 
127
        if os.WCOREDUMP(condition):
 
128
            self.logger(u'Checker for client %s (command "%s")'
 
129
                        u' dumped core'
 
130
                        % (self.properties[u"name"], command))
 
131
        self.logger(u'Checker for client %s completed mysteriously')
 
132
    
202
133
    def checker_started(self, command):
203
 
        """Server signals that a checker started."""
204
 
        self.logger('Client {} started checker "{}"'
205
 
                    .format(self.properties["Name"],
206
 
                            command), level=0)
207
 
 
 
134
        self.logger(u'Client %s started checker "%s"'
 
135
                    % (self.properties[u"name"], unicode(command)))
 
136
    
208
137
    def got_secret(self):
209
 
        self.logger('Client {} received its secret'
210
 
                    .format(self.properties["Name"]))
211
 
 
212
 
    def need_approval(self, timeout, default):
213
 
        if not default:
214
 
            message = 'Client {} needs approval within {} seconds'
215
 
        else:
216
 
            message = 'Client {} will get its secret in {} seconds'
217
 
        self.logger(message.format(self.properties["Name"],
218
 
                                   timeout/1000))
219
 
 
220
 
    def rejected(self, reason):
221
 
        self.logger('Client {} was rejected; reason: {}'
222
 
                    .format(self.properties["Name"], reason))
223
 
 
 
138
        self.logger(u'Client %s received its secret'
 
139
                    % self.properties[u"name"])
 
140
    
 
141
    def rejected(self):
 
142
        self.logger(u'Client %s was rejected'
 
143
                    % self.properties[u"name"])
 
144
    
224
145
    def selectable(self):
225
146
        """Make this a "selectable" widget.
226
147
        This overrides the method from urwid.FlowWidget."""
227
148
        return True
228
 
 
229
 
    def rows(self, maxcolrow, focus=False):
 
149
    
 
150
    def rows(self, (maxcol,), focus=False):
230
151
        """How many rows this widget will occupy might depend on
231
152
        whether we have focus or not.
232
153
        This overrides the method from urwid.FlowWidget"""
233
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
234
 
 
 
154
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
155
    
235
156
    def current_widget(self, focus=False):
236
157
        if focus or self.opened:
237
158
            return self._focus_widget
238
159
        return self._widget
239
 
 
 
160
    
240
161
    def update(self):
241
162
        "Called when what is visible on the screen should be updated."
242
163
        # How to add standout mode to a style
243
 
        with_standout = {"normal": "standout",
244
 
                         "bold": "bold-standout",
245
 
                         "underline-blink":
246
 
                         "underline-blink-standout",
247
 
                         "bold-underline-blink":
248
 
                         "bold-underline-blink-standout",
249
 
                         }
250
 
 
 
164
        with_standout = { u"normal": u"standout",
 
165
                          u"bold": u"bold-standout",
 
166
                          u"underline-blink":
 
167
                              u"underline-blink-standout",
 
168
                          u"bold-underline-blink":
 
169
                              u"bold-underline-blink-standout",
 
170
                          }
 
171
        
251
172
        # Rebuild focus and non-focus widgets using current properties
252
 
 
253
 
        # Base part of a client. Name!
254
 
        base = '{name}: '.format(name=self.properties["Name"])
255
 
        if not self.properties["Enabled"]:
256
 
            message = "DISABLED"
257
 
            self.using_timer(False)
258
 
        elif self.properties["ApprovalPending"]:
259
 
            timeout = datetime.timedelta(
260
 
                milliseconds=self.properties["ApprovalDelay"])
261
 
            last_approval_request = isoformat_to_datetime(
262
 
                self.properties["LastApprovalRequest"])
263
 
            if last_approval_request is not None:
264
 
                timer = max(timeout - (datetime.datetime.utcnow()
265
 
                                       - last_approval_request),
266
 
                            datetime.timedelta())
267
 
            else:
268
 
                timer = datetime.timedelta()
269
 
            if self.properties["ApprovedByDefault"]:
270
 
                message = "Approval in {}. (d)eny?"
271
 
            else:
272
 
                message = "Denial in {}. (a)pprove?"
273
 
            message = message.format(str(timer).rsplit(".", 1)[0])
274
 
            self.using_timer(True)
275
 
        elif self.properties["LastCheckerStatus"] != 0:
276
 
            # When checker has failed, show timer until client expires
277
 
            expires = self.properties["Expires"]
278
 
            if expires == "":
279
 
                timer = datetime.timedelta(0)
280
 
            else:
281
 
                expires = (datetime.datetime.strptime
282
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
283
 
                timer = max(expires - datetime.datetime.utcnow(),
284
 
                            datetime.timedelta())
285
 
            message = ('A checker has failed! Time until client'
286
 
                       ' gets disabled: {}'
287
 
                       .format(str(timer).rsplit(".", 1)[0]))
288
 
            self.using_timer(True)
289
 
        else:
290
 
            message = "enabled"
291
 
            self.using_timer(False)
292
 
        self._text = "{}{}".format(base, message)
293
 
 
 
173
        self._text = (u'%(name)s: %(enabled)s'
 
174
                      % { u"name": self.properties[u"name"],
 
175
                          u"enabled":
 
176
                              (u"enabled"
 
177
                               if self.properties[u"enabled"]
 
178
                               else u"DISABLED")})
294
179
        if not urwid.supports_unicode():
295
180
            self._text = self._text.encode("ascii", "replace")
296
 
        textlist = [("normal", self._text)]
 
181
        textlist = [(u"normal", self._text)]
297
182
        self._text_widget.set_text(textlist)
298
183
        self._focus_text_widget.set_text([(with_standout[text[0]],
299
184
                                           text[1])
306
191
        # Run update hook, if any
307
192
        if self.update_hook is not None:
308
193
            self.update_hook()
309
 
 
310
 
    def update_timer(self):
311
 
        """called by GLib. Will indefinitely loop until
312
 
        GLib.source_remove() on tag is called
313
 
        """
314
 
        self.update()
315
 
        return True             # Keep calling this
316
 
 
317
 
    def delete(self, **kwargs):
318
 
        if self._update_timer_callback_tag is not None:
319
 
            GLib.source_remove(self._update_timer_callback_tag)
320
 
            self._update_timer_callback_tag = None
321
 
        for match in self.match_objects:
322
 
            match.remove()
323
 
        self.match_objects = ()
 
194
    
 
195
    def delete(self):
324
196
        if self.delete_hook is not None:
325
197
            self.delete_hook(self)
326
 
        return super(MandosClientWidget, self).delete(**kwargs)
327
 
 
328
 
    def render(self, maxcolrow, focus=False):
 
198
    
 
199
    def render(self, (maxcol,), focus=False):
329
200
        """Render differently if we have focus.
330
201
        This overrides the method from urwid.FlowWidget"""
331
 
        return self.current_widget(focus).render(maxcolrow,
 
202
        return self.current_widget(focus).render((maxcol,),
332
203
                                                 focus=focus)
333
 
 
334
 
    def keypress(self, maxcolrow, key):
 
204
    
 
205
    def keypress(self, (maxcol,), key):
335
206
        """Handle keys.
336
207
        This overrides the method from urwid.FlowWidget"""
337
 
        if key == "+":
338
 
            self.proxy.Set(client_interface, "Enabled",
339
 
                           dbus.Boolean(True), ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
341
 
        elif key == "-":
342
 
            self.proxy.Set(client_interface, "Enabled", False,
343
 
                           ignore_reply=True,
344
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
345
 
        elif key == "a":
346
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface=client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "d":
350
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
 
                               dbus_interface=client_interface,
352
 
                               ignore_reply=True)
353
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
208
        if key == u"e" or key == u"+":
 
209
            self.proxy.Enable()
 
210
        elif key == u"d" or key == u"-":
 
211
            self.proxy.Disable()
 
212
        elif key == u"r" or key == u"_" or key == u"ctrl k":
354
213
            self.server_proxy_object.RemoveClient(self.proxy
355
 
                                                  .object_path,
356
 
                                                  ignore_reply=True)
357
 
        elif key == "s":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(True), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
361
 
        elif key == "S":
362
 
            self.proxy.Set(client_interface, "CheckerRunning",
363
 
                           dbus.Boolean(False), ignore_reply=True,
364
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
365
 
        elif key == "C":
366
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
367
 
                                 ignore_reply=True)
 
214
                                                  .object_path)
 
215
        elif key == u"s":
 
216
            self.proxy.StartChecker()
 
217
        elif key == u"S":
 
218
            self.proxy.StopChecker()
 
219
        elif key == u"C":
 
220
            self.proxy.CheckedOK()
368
221
        # xxx
369
 
#         elif key == "p" or key == "=":
 
222
#         elif key == u"p" or key == "=":
370
223
#             self.proxy.pause()
371
 
#         elif key == "u" or key == ":":
 
224
#         elif key == u"u" or key == ":":
372
225
#             self.proxy.unpause()
373
 
#         elif key == "RET":
 
226
#         elif key == u"RET":
374
227
#             self.open()
375
228
        else:
376
229
            return key
377
 
 
378
 
    def properties_changed(self, interface, properties, invalidated):
379
 
        """Call self.update() if any properties changed.
 
230
    
 
231
    def property_changed(self, property=None, value=None,
 
232
                         *args, **kwargs):
 
233
        """Call self.update() if old value is not new value.
380
234
        This overrides the method from MandosClientPropertyCache"""
381
 
        old_values = {key: self.properties.get(key)
382
 
                      for key in properties.keys()}
383
 
        super(MandosClientWidget, self).properties_changed(
384
 
            interface, properties, invalidated)
385
 
        if any(old_values[key] != self.properties.get(key)
386
 
               for key in old_values):
 
235
        property_name = unicode(property)
 
236
        old_value = self.properties.get(property_name)
 
237
        super(MandosClientWidget, self).property_changed(
 
238
            property=property, value=value, *args, **kwargs)
 
239
        if self.properties.get(property_name) != old_value:
387
240
            self.update()
388
241
 
389
242
 
392
245
    "down" key presses, thus not allowing any containing widgets to
393
246
    use them as an excuse to shift focus away from this widget.
394
247
    """
395
 
    def keypress(self, *args, **kwargs):
396
 
        ret = (super(ConstrainedListBox, self)
397
 
               .keypress(*args, **kwargs))
398
 
        if ret in ("up", "down"):
 
248
    def keypress(self, (maxcol, maxrow), key):
 
249
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
250
        if ret in (u"up", u"down"):
399
251
            return
400
252
        return ret
401
253
 
404
256
    """This is the entire user interface - the whole screen
405
257
    with boxes, lists of client widgets, etc.
406
258
    """
407
 
    def __init__(self, max_log_length=1000, log_level=1):
 
259
    def __init__(self, max_log_length=1000):
408
260
        DBusGMainLoop(set_as_default=True)
409
 
 
 
261
        
410
262
        self.screen = urwid.curses_display.Screen()
411
 
 
 
263
        
412
264
        self.screen.register_palette((
413
 
                ("normal",
414
 
                 "default", "default", None),
415
 
                ("bold",
416
 
                 "bold", "default", "bold"),
417
 
                ("underline-blink",
418
 
                 "underline,blink", "default", "underline,blink"),
419
 
                ("standout",
420
 
                 "standout", "default", "standout"),
421
 
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default",
423
 
                 "bold,underline,blink"),
424
 
                ("bold-standout",
425
 
                 "bold,standout", "default", "bold,standout"),
426
 
                ("underline-blink-standout",
427
 
                 "underline,blink,standout", "default",
428
 
                 "underline,blink,standout"),
429
 
                ("bold-underline-blink-standout",
430
 
                 "bold,underline,blink,standout", "default",
431
 
                 "bold,underline,blink,standout"),
 
265
                (u"normal",
 
266
                 u"default", u"default", None),
 
267
                (u"bold",
 
268
                 u"default", u"default", u"bold"),
 
269
                (u"underline-blink",
 
270
                 u"default", u"default", u"underline"),
 
271
                (u"standout",
 
272
                 u"default", u"default", u"standout"),
 
273
                (u"bold-underline-blink",
 
274
                 u"default", u"default", (u"bold", u"underline")),
 
275
                (u"bold-standout",
 
276
                 u"default", u"default", (u"bold", u"standout")),
 
277
                (u"underline-blink-standout",
 
278
                 u"default", u"default", (u"underline", u"standout")),
 
279
                (u"bold-underline-blink-standout",
 
280
                 u"default", u"default", (u"bold", u"underline",
 
281
                                          u"standout")),
432
282
                ))
433
 
 
 
283
        
434
284
        if urwid.supports_unicode():
435
 
            self.divider = "─"  # \u2500
 
285
            self.divider = u"─" # \u2500
 
286
            #self.divider = u"━" # \u2501
436
287
        else:
437
 
            self.divider = "_"  # \u005f
438
 
 
 
288
            #self.divider = u"-" # \u002d
 
289
            self.divider = u"_" # \u005f
 
290
        
439
291
        self.screen.start()
440
 
 
 
292
        
441
293
        self.size = self.screen.get_cols_rows()
442
 
 
 
294
        
443
295
        self.clients = urwid.SimpleListWalker([])
444
296
        self.clients_dict = {}
445
 
 
 
297
        
446
298
        # We will add Text widgets to this list
447
 
        self.log = urwid.SimpleListWalker([])
 
299
        self.log = []
448
300
        self.max_log_length = max_log_length
449
 
 
450
 
        self.log_level = log_level
451
 
 
 
301
        
452
302
        # We keep a reference to the log widget so we can remove it
453
303
        # from the ListWalker without it getting destroyed
454
304
        self.logbox = ConstrainedListBox(self.log)
455
 
 
 
305
        
456
306
        # This keeps track of whether self.uilist currently has
457
307
        # self.logbox in it or not
458
308
        self.log_visible = True
459
 
        self.log_wrap = "any"
460
 
 
 
309
        self.log_wrap = u"any"
 
310
        
461
311
        self.rebuild()
462
 
        self.log_message_raw(("bold",
463
 
                              "Mandos Monitor version " + version))
464
 
        self.log_message_raw(("bold",
465
 
                              "q: Quit  ?: Help"))
466
 
 
 
312
        self.log_message_raw((u"bold",
 
313
                              u"Mandos Monitor version " + version))
 
314
        self.log_message_raw((u"bold",
 
315
                              u"q: Quit  ?: Help"))
 
316
        
467
317
        self.busname = domain + '.Mandos'
468
 
        self.main_loop = GLib.MainLoop()
469
 
 
470
 
    def client_not_found(self, key_id, address):
471
 
        self.log_message("Client with address {} and key ID {} could"
472
 
                         " not be found".format(address, key_id))
473
 
 
 
318
        self.main_loop = gobject.MainLoop()
 
319
        self.bus = dbus.SystemBus()
 
320
        mandos_dbus_objc = self.bus.get_object(
 
321
            self.busname, u"/", follow_name_owner_changes=True)
 
322
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
323
                                          dbus_interface
 
324
                                          = server_interface)
 
325
        try:
 
326
            mandos_clients = (self.mandos_serv
 
327
                              .GetAllClientsWithProperties())
 
328
        except dbus.exceptions.DBusException:
 
329
            mandos_clients = dbus.Dictionary()
 
330
        
 
331
        (self.mandos_serv
 
332
         .connect_to_signal(u"ClientRemoved",
 
333
                            self.find_and_remove_client,
 
334
                            dbus_interface=server_interface,
 
335
                            byte_arrays=True))
 
336
        (self.mandos_serv
 
337
         .connect_to_signal(u"ClientAdded",
 
338
                            self.add_new_client,
 
339
                            dbus_interface=server_interface,
 
340
                            byte_arrays=True))
 
341
        (self.mandos_serv
 
342
         .connect_to_signal(u"ClientNotFound",
 
343
                            self.client_not_found,
 
344
                            dbus_interface=server_interface,
 
345
                            byte_arrays=True))
 
346
        for path, client in mandos_clients.iteritems():
 
347
            client_proxy_object = self.bus.get_object(self.busname,
 
348
                                                      path)
 
349
            self.add_client(MandosClientWidget(server_proxy_object
 
350
                                               =self.mandos_serv,
 
351
                                               proxy_object
 
352
                                               =client_proxy_object,
 
353
                                               properties=client,
 
354
                                               update_hook
 
355
                                               =self.refresh,
 
356
                                               delete_hook
 
357
                                               =self.remove_client,
 
358
                                               logger
 
359
                                               =self.log_message),
 
360
                            path=path)
 
361
    
 
362
    def client_not_found(self, fingerprint, address):
 
363
        self.log_message((u"Client with address %s and fingerprint %s"
 
364
                          u" could not be found" % (address,
 
365
                                                    fingerprint)))
 
366
    
474
367
    def rebuild(self):
475
368
        """This rebuilds the User Interface.
476
369
        Call this when the widget layout needs to change"""
477
370
        self.uilist = []
478
 
        # self.uilist.append(urwid.ListBox(self.clients))
479
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
480
 
                                                          clients),
481
 
                                       # header=urwid.Divider(),
 
371
        #self.uilist.append(urwid.ListBox(self.clients))
 
372
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
373
                                       #header=urwid.Divider(),
482
374
                                       header=None,
483
 
                                       footer=urwid.Divider(
484
 
                                           div_char=self.divider)))
 
375
                                       footer=urwid.Divider(div_char=self.divider)))
485
376
        if self.log_visible:
486
377
            self.uilist.append(self.logbox)
 
378
            pass
487
379
        self.topwidget = urwid.Pile(self.uilist)
488
 
 
489
 
    def log_message(self, message, level=1):
490
 
        """Log message formatted with timestamp"""
491
 
        if level < self.log_level:
492
 
            return
 
380
    
 
381
    def log_message(self, message):
493
382
        timestamp = datetime.datetime.now().isoformat()
494
 
        self.log_message_raw("{}: {}".format(timestamp, message),
495
 
                             level=level)
496
 
 
497
 
    def log_message_raw(self, markup, level=1):
 
383
        self.log_message_raw(timestamp + u": " + message)
 
384
    
 
385
    def log_message_raw(self, markup):
498
386
        """Add a log message to the log buffer."""
499
 
        if level < self.log_level:
500
 
            return
501
387
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
502
 
        if self.max_log_length:
503
 
            if len(self.log) > self.max_log_length:
504
 
                del self.log[0:len(self.log)-self.max_log_length-1]
505
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
506
 
                              coming_from="above")
 
388
        if (self.max_log_length
 
389
            and len(self.log) > self.max_log_length):
 
390
            del self.log[0:len(self.log)-self.max_log_length-1]
 
391
        self.logbox.set_focus(len(self.logbox.body.contents),
 
392
                              coming_from=u"above")
507
393
        self.refresh()
508
 
 
 
394
    
509
395
    def toggle_log_display(self):
510
396
        """Toggle visibility of the log buffer."""
511
397
        self.log_visible = not self.log_visible
512
398
        self.rebuild()
513
 
        self.log_message("Log visibility changed to: {}"
514
 
                         .format(self.log_visible), level=0)
515
 
 
 
399
        self.log_message(u"Log visibility changed to: "
 
400
                         + unicode(self.log_visible))
 
401
    
516
402
    def change_log_display(self):
517
403
        """Change type of log display.
518
404
        Currently, this toggles wrapping of text lines."""
519
 
        if self.log_wrap == "clip":
520
 
            self.log_wrap = "any"
 
405
        if self.log_wrap == u"clip":
 
406
            self.log_wrap = u"any"
521
407
        else:
522
 
            self.log_wrap = "clip"
 
408
            self.log_wrap = u"clip"
523
409
        for textwidget in self.log:
524
410
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
526
 
                         level=0)
527
 
 
528
 
    def find_and_remove_client(self, path, interfaces):
529
 
        """Find a client by its object path and remove it.
530
 
 
531
 
        This is connected to the InterfacesRemoved signal from the
 
411
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
412
    
 
413
    def find_and_remove_client(self, path, name):
 
414
        """Find an client from its object path and remove it.
 
415
        
 
416
        This is connected to the ClientRemoved signal from the
532
417
        Mandos server object."""
533
 
        if client_interface not in interfaces:
534
 
            # Not a Mandos client object; ignore
535
 
            return
536
418
        try:
537
419
            client = self.clients_dict[path]
538
420
        except KeyError:
539
421
            # not found?
540
 
            self.log_message("Unknown client {!r} removed"
541
 
                             .format(path))
542
 
            return
543
 
        client.delete()
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
 
422
            return
 
423
        self.remove_client(client, path)
 
424
    
 
425
    def add_new_client(self, path):
554
426
        client_proxy_object = self.bus.get_object(self.busname, path)
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])),
 
427
        self.add_client(MandosClientWidget(server_proxy_object
 
428
                                           =self.mandos_serv,
 
429
                                           proxy_object
 
430
                                           =client_proxy_object,
 
431
                                           update_hook
 
432
                                           =self.refresh,
 
433
                                           delete_hook
 
434
                                           =self.remove_client,
 
435
                                           logger
 
436
                                           =self.log_message),
562
437
                        path=path)
563
 
 
 
438
    
564
439
    def add_client(self, client, path=None):
565
440
        self.clients.append(client)
566
441
        if path is None:
567
442
            path = client.proxy.object_path
568
443
        self.clients_dict[path] = client
569
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
444
        self.clients.sort(None, lambda c: c.properties[u"name"])
570
445
        self.refresh()
571
 
 
 
446
    
572
447
    def remove_client(self, client, path=None):
573
448
        self.clients.remove(client)
574
449
        if path is None:
575
450
            path = client.proxy.object_path
576
451
        del self.clients_dict[path]
 
452
        if not self.clients_dict:
 
453
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
454
            # is completely emptied, we need to recreate it.
 
455
            self.clients = urwid.SimpleListWalker([])
 
456
            self.rebuild()
577
457
        self.refresh()
578
 
 
 
458
    
579
459
    def refresh(self):
580
460
        """Redraw the screen"""
581
461
        canvas = self.topwidget.render(self.size, focus=True)
582
462
        self.screen.draw_screen(self.size, canvas)
583
 
 
 
463
    
584
464
    def run(self):
585
465
        """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
 
 
629
466
        self.refresh()
630
 
        self._input_callback_tag = (
631
 
            GLib.io_add_watch(
632
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
633
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
634
 
                self.process_input))
 
467
        self._input_callback_tag = (gobject.io_add_watch
 
468
                                    (sys.stdin.fileno(),
 
469
                                     gobject.IO_IN,
 
470
                                     self.process_input))
635
471
        self.main_loop.run()
636
472
        # Main loop has finished, we should close everything now
637
 
        GLib.source_remove(self._input_callback_tag)
638
 
        with warnings.catch_warnings():
639
 
            warnings.simplefilter("ignore", BytesWarning)
640
 
            self.screen.stop()
641
 
 
 
473
        gobject.source_remove(self._input_callback_tag)
 
474
        self.screen.stop()
 
475
    
642
476
    def stop(self):
643
477
        self.main_loop.quit()
644
 
 
 
478
    
645
479
    def process_input(self, source, condition):
646
480
        keys = self.screen.get_input()
647
 
        translations = {"ctrl n": "down",       # Emacs
648
 
                        "ctrl p": "up",         # Emacs
649
 
                        "ctrl v": "page down",  # Emacs
650
 
                        "meta v": "page up",    # Emacs
651
 
                        " ": "page down",       # less
652
 
                        "f": "page down",       # less
653
 
                        "b": "page up",         # less
654
 
                        "j": "down",            # vi
655
 
                        "k": "up",              # vi
656
 
                        }
 
481
        translations = { u"ctrl n": u"down",      # Emacs
 
482
                         u"ctrl p": u"up",        # Emacs
 
483
                         u"ctrl v": u"page down", # Emacs
 
484
                         u"meta v": u"page up",   # Emacs
 
485
                         u" ": u"page down",      # less
 
486
                         u"f": u"page down",      # less
 
487
                         u"b": u"page up",        # less
 
488
                         u"j": u"down",           # vi
 
489
                         u"k": u"up",             # vi
 
490
                         }
657
491
        for key in keys:
658
492
            try:
659
493
                key = translations[key]
660
494
            except KeyError:    # :-)
661
495
                pass
662
 
 
663
 
            if key == "q" or key == "Q":
 
496
            
 
497
            if key == u"q" or key == u"Q":
664
498
                self.stop()
665
499
                break
666
 
            elif key == "window resize":
 
500
            elif key == u"window resize":
667
501
                self.size = self.screen.get_cols_rows()
668
502
                self.refresh()
669
 
            elif key == "ctrl l":
670
 
                self.screen.clear()
 
503
            elif key == u"\f":  # Ctrl-L
671
504
                self.refresh()
672
 
            elif key == "l" or key == "D":
 
505
            elif key == u"l" or key == u"D":
673
506
                self.toggle_log_display()
674
507
                self.refresh()
675
 
            elif key == "w" or key == "i":
 
508
            elif key == u"w" or key == u"i":
676
509
                self.change_log_display()
677
510
                self.refresh()
678
 
            elif key == "?" or key == "f1" or key == "esc":
 
511
            elif key == u"?" or key == u"f1" or key == u"esc":
679
512
                if not self.log_visible:
680
513
                    self.log_visible = True
681
514
                    self.rebuild()
682
 
                self.log_message_raw(("bold",
683
 
                                      "  ".
684
 
                                      join(("q: Quit",
685
 
                                            "?: Help",
686
 
                                            "l: Log window toggle",
687
 
                                            "TAB: Switch window",
688
 
                                            "w: Wrap (log lines)",
689
 
                                            "v: Toggle verbose log",
690
 
                                            ))))
691
 
                self.log_message_raw(("bold",
692
 
                                      "  "
693
 
                                      .join(("Clients:",
694
 
                                             "+: Enable",
695
 
                                             "-: Disable",
696
 
                                             "R: Remove",
697
 
                                             "s: Start new checker",
698
 
                                             "S: Stop checker",
699
 
                                             "C: Checker OK",
700
 
                                             "a: Approve",
701
 
                                             "d: Deny"))))
 
515
                self.log_message_raw((u"bold",
 
516
                                      u"  ".
 
517
                                      join((u"q: Quit",
 
518
                                            u"?: Help",
 
519
                                            u"l: Log window toggle",
 
520
                                            u"TAB: Switch window",
 
521
                                            u"w: Wrap (log)"))))
 
522
                self.log_message_raw((u"bold",
 
523
                                      u"  "
 
524
                                      .join((u"Clients:",
 
525
                                             u"e: Enable",
 
526
                                             u"d: Disable",
 
527
                                             u"r: Remove",
 
528
                                             u"s: Start new checker",
 
529
                                             u"S: Stop checker",
 
530
                                             u"C: Checker OK"))))
702
531
                self.refresh()
703
 
            elif key == "tab":
 
532
            elif key == u"tab":
704
533
                if self.topwidget.get_focus() is self.logbox:
705
534
                    self.topwidget.set_focus(0)
706
535
                else:
707
536
                    self.topwidget.set_focus(self.logbox)
708
537
                self.refresh()
709
 
            elif key == "v":
710
 
                if self.log_level == 0:
711
 
                    self.log_level = 1
712
 
                    self.log_message("Verbose mode: Off")
713
 
                else:
714
 
                    self.log_level = 0
715
 
                    self.log_message("Verbose mode: On")
716
 
            # elif (key == "end" or key == "meta >" or key == "G"
717
 
            #       or key == ">"):
718
 
            #     pass            # xxx end-of-buffer
719
 
            # elif (key == "home" or key == "meta <" or key == "g"
720
 
            #       or key == "<"):
721
 
            #     pass            # xxx beginning-of-buffer
722
 
            # elif key == "ctrl e" or key == "$":
723
 
            #     pass            # xxx move-end-of-line
724
 
            # elif key == "ctrl a" or key == "^":
725
 
            #     pass            # xxx move-beginning-of-line
726
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
727
 
            #     pass            # xxx left
728
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
729
 
            #     pass            # xxx right
730
 
            # elif key == "a":
731
 
            #     pass            # scroll up log
732
 
            # elif key == "z":
733
 
            #     pass            # scroll down log
 
538
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
539
            #      or key == u">"):
 
540
            #    pass            # xxx end-of-buffer
 
541
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
542
            #      or key == u"<"):
 
543
            #    pass            # xxx beginning-of-buffer
 
544
            #elif key == u"ctrl e" or key == u"$":
 
545
            #    pass            # xxx move-end-of-line
 
546
            #elif key == u"ctrl a" or key == u"^":
 
547
            #    pass            # xxx move-beginning-of-line
 
548
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
549
            #    pass            # xxx left
 
550
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
551
            #    pass            # xxx right
 
552
            #elif key == u"a":
 
553
            #    pass            # scroll up log
 
554
            #elif key == u"z":
 
555
            #    pass            # scroll down log
734
556
            elif self.topwidget.selectable():
735
557
                self.topwidget.keypress(self.size, key)
736
558
                self.refresh()
737
559
        return True
738
560
 
739
 
 
740
561
ui = UserInterface()
741
562
try:
742
563
    ui.run()
743
 
except KeyboardInterrupt:
744
 
    ui.screen.stop()
745
 
except Exception as e:
746
 
    ui.log_message(str(e))
 
564
except Exception, e:
 
565
    ui.log_message(unicode(e))
747
566
    ui.screen.stop()
748
567
    raise