/mandos/release

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/release

« back to all changes in this revision

Viewing changes to mandos-monitor

  • Committer: Teddy Hogeborn
  • Date: 2016-03-13 00:37:02 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 339.
  • Revision ID: teddy@recompile.se-20160313003702-dulwtwt8ilpojra9
Server: Fix bug where it did not exit timely on signals

Use GLib.unix_signal_add() instead of signal.signal() to catch
signals; this will allow GLib to do its internal magic with signal
file descriptors.  (GLib does not handle signals properly otherwise.)
The function unix_signal_add() requires GLib 2.30 or later, which was
not required by PyGobject until version 3.7.1, so depend on this.

* INSTALL (Mandos Server): Document dependency on PyGObject 3.7.1
* mandos (main): Use GLib.unix_signal_add instead of signal.signal.
* init.d-mandos (do_stop): Remove workaround.
* mandos.service ([Service]): - '' -

Show diffs side-by-side

added added

removed removed

Lines of Context:
mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2016 Teddy Hogeborn
 
7
# Copyright © 2009-2016 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
 
11
# the Free Software Foundation, either version 3 of the License, or
 
12
# (at your option) any later version.
 
13
#
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
17
#     GNU General Public License for more details.
 
18
# 
 
19
# You should have received a copy of the GNU General Public License
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
# 
3
25
 
4
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
5
32
 
6
33
import sys
7
34
import os
8
 
import signal
9
35
 
10
36
import datetime
11
37
 
13
39
import urwid
14
40
 
15
41
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
42
from gi.repository import GLib
17
43
 
18
44
import dbus
19
45
 
20
 
import UserList
 
46
import locale
 
47
 
 
48
if sys.version_info.major == 2:
 
49
    str = unicode
 
50
 
 
51
locale.setlocale(locale.LC_ALL, '')
 
52
 
 
53
import logging
 
54
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
21
55
 
22
56
# Some useful constants
23
 
domain = 'se.bsnet.fukt'
 
57
domain = 'se.recompile'
24
58
server_interface = domain + '.Mandos'
25
59
client_interface = domain + '.Mandos.Client'
26
 
version = "1.0.14"
27
 
 
28
 
# Always run in monochrome mode
29
 
urwid.curses_display.curses.has_colors = lambda : False
30
 
 
31
 
# Urwid doesn't support blinking, but we want it.  Since we have no
32
 
# use for underline on its own, we make underline also always blink.
33
 
urwid.curses_display.curses.A_UNDERLINE |= (
34
 
    urwid.curses_display.curses.A_BLINK)
 
60
version = "1.7.5"
 
61
 
 
62
try:
 
63
    dbus.OBJECT_MANAGER_IFACE
 
64
except AttributeError:
 
65
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
66
 
 
67
def isoformat_to_datetime(iso):
 
68
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
69
    if not iso:
 
70
        return None
 
71
    d, t = iso.split("T", 1)
 
72
    year, month, day = d.split("-", 2)
 
73
    hour, minute, second = t.split(":", 2)
 
74
    second, fraction = divmod(float(second), 1)
 
75
    return datetime.datetime(int(year),
 
76
                             int(month),
 
77
                             int(day),
 
78
                             int(hour),
 
79
                             int(minute),
 
80
                             int(second),           # Whole seconds
 
81
                             int(fraction*1000000)) # Microseconds
35
82
 
36
83
class MandosClientPropertyCache(object):
37
84
    """This wraps a Mandos Client D-Bus proxy object, caches the
38
85
    properties and calls a hook function when any of them are
39
86
    changed.
40
87
    """
41
 
    def __init__(self, proxy_object=None, properties=None, *args,
42
 
                 **kwargs):
 
88
    def __init__(self, proxy_object=None, properties=None, **kwargs):
43
89
        self.proxy = proxy_object # Mandos Client proxy object
44
 
        
45
 
        if properties is None:
46
 
            self.properties = dict()
47
 
        else:
48
 
            self.properties = properties
49
 
        self.proxy.connect_to_signal(u"PropertyChanged",
50
 
                                     self.property_changed,
51
 
                                     client_interface,
52
 
                                     byte_arrays=True)
53
 
        
54
 
        if properties is None:
55
 
            self.properties.update(self.proxy.GetAll(client_interface,
56
 
                                                     dbus_interface =
57
 
                                                     dbus.PROPERTIES_IFACE))
58
 
        super(MandosClientPropertyCache, self).__init__(
59
 
            proxy_object=proxy_object,
60
 
            properties=properties, *args, **kwargs)
 
90
        self.properties = dict() if properties is None else properties
 
91
        self.property_changed_match = (
 
92
            self.proxy.connect_to_signal("PropertiesChanged",
 
93
                                         self.properties_changed,
 
94
                                         dbus.PROPERTIES_IFACE,
 
95
                                         byte_arrays=True))
 
96
        
 
97
        if properties is None:
 
98
            self.properties.update(
 
99
                self.proxy.GetAll(client_interface,
 
100
                                  dbus_interface
 
101
                                  = dbus.PROPERTIES_IFACE))
 
102
        
 
103
        super(MandosClientPropertyCache, self).__init__(**kwargs)
61
104
    
62
 
    def property_changed(self, property=None, value=None):
63
 
        """This is called whenever we get a PropertyChanged signal
64
 
        It updates the changed property in the "properties" dict.
 
105
    def properties_changed(self, interface, properties, invalidated):
 
106
        """This is called whenever we get a PropertiesChanged signal
 
107
        It updates the changed properties in the "properties" dict.
65
108
        """
66
109
        # Update properties dict with new value
67
 
        self.properties[property] = value
 
110
        if interface == client_interface:
 
111
            self.properties.update(properties)
 
112
    
 
113
    def delete(self):
 
114
        self.property_changed_match.remove()
68
115
 
69
116
 
70
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
72
119
    """
73
120
    
74
121
    def __init__(self, server_proxy_object=None, update_hook=None,
75
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
122
                 delete_hook=None, logger=None, **kwargs):
76
123
        # Called on update
77
124
        self.update_hook = update_hook
78
125
        # Called on delete
82
129
        # Logger
83
130
        self.logger = logger
84
131
        
 
132
        self._update_timer_callback_tag = None
 
133
        
85
134
        # The widget shown normally
86
 
        self._text_widget = urwid.Text(u"")
 
135
        self._text_widget = urwid.Text("")
87
136
        # The widget shown when we have focus
88
 
        self._focus_text_widget = urwid.Text(u"")
89
 
        super(MandosClientWidget, self).__init__(
90
 
            update_hook=update_hook, delete_hook=delete_hook,
91
 
            *args, **kwargs)
 
137
        self._focus_text_widget = urwid.Text("")
 
138
        super(MandosClientWidget, self).__init__(**kwargs)
92
139
        self.update()
93
140
        self.opened = False
94
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
95
 
                                     self.checker_completed,
96
 
                                     client_interface,
97
 
                                     byte_arrays=True)
98
 
        self.proxy.connect_to_signal(u"CheckerStarted",
99
 
                                     self.checker_started,
100
 
                                     client_interface,
101
 
                                     byte_arrays=True)
102
 
        self.proxy.connect_to_signal(u"GotSecret",
103
 
                                     self.got_secret,
104
 
                                     client_interface,
105
 
                                     byte_arrays=True)
106
 
        self.proxy.connect_to_signal(u"Rejected",
107
 
                                     self.rejected,
108
 
                                     client_interface,
109
 
                                     byte_arrays=True)
 
141
        
 
142
        self.match_objects = (
 
143
            self.proxy.connect_to_signal("CheckerCompleted",
 
144
                                         self.checker_completed,
 
145
                                         client_interface,
 
146
                                         byte_arrays=True),
 
147
            self.proxy.connect_to_signal("CheckerStarted",
 
148
                                         self.checker_started,
 
149
                                         client_interface,
 
150
                                         byte_arrays=True),
 
151
            self.proxy.connect_to_signal("GotSecret",
 
152
                                         self.got_secret,
 
153
                                         client_interface,
 
154
                                         byte_arrays=True),
 
155
            self.proxy.connect_to_signal("NeedApproval",
 
156
                                         self.need_approval,
 
157
                                         client_interface,
 
158
                                         byte_arrays=True),
 
159
            self.proxy.connect_to_signal("Rejected",
 
160
                                         self.rejected,
 
161
                                         client_interface,
 
162
                                         byte_arrays=True))
 
163
        self.logger('Created client {}'
 
164
                    .format(self.properties["Name"]), level=0)
 
165
    
 
166
    def using_timer(self, flag):
 
167
        """Call this method with True or False when timer should be
 
168
        activated or deactivated.
 
169
        """
 
170
        if flag and self._update_timer_callback_tag is None:
 
171
            # Will update the shown timer value every second
 
172
            self._update_timer_callback_tag = (GLib.timeout_add
 
173
                                               (1000,
 
174
                                                self.update_timer))
 
175
        elif not (flag or self._update_timer_callback_tag is None):
 
176
            GLib.source_remove(self._update_timer_callback_tag)
 
177
            self._update_timer_callback_tag = None
110
178
    
111
179
    def checker_completed(self, exitstatus, condition, command):
112
180
        if exitstatus == 0:
113
 
            self.logger(u'Checker for client %s (command "%s")'
114
 
                        u' was successful'
115
 
                        % (self.properties[u"name"], command))
 
181
            self.logger('Checker for client {} (command "{}")'
 
182
                        ' succeeded'.format(self.properties["Name"],
 
183
                                            command), level=0)
 
184
            self.update()
116
185
            return
 
186
        # Checker failed
117
187
        if os.WIFEXITED(condition):
118
 
            self.logger(u'Checker for client %s (command "%s")'
119
 
                        u' failed with exit code %s'
120
 
                        % (self.properties[u"name"], command,
121
 
                           os.WEXITSTATUS(condition)))
122
 
            return
123
 
        if os.WIFSIGNALED(condition):
124
 
            self.logger(u'Checker for client %s (command "%s")'
125
 
                        u' was killed by signal %s'
126
 
                        % (self.properties[u"name"], command,
127
 
                           os.WTERMSIG(condition)))
128
 
            return
129
 
        if os.WCOREDUMP(condition):
130
 
            self.logger(u'Checker for client %s (command "%s")'
131
 
                        u' dumped core'
132
 
                        % (self.properties[u"name"], command))
133
 
        self.logger(u'Checker for client %s completed mysteriously')
 
188
            self.logger('Checker for client {} (command "{}") failed'
 
189
                        ' with exit code {}'
 
190
                        .format(self.properties["Name"], command,
 
191
                                os.WEXITSTATUS(condition)))
 
192
        elif os.WIFSIGNALED(condition):
 
193
            self.logger('Checker for client {} (command "{}") was'
 
194
                        ' killed by signal {}'
 
195
                        .format(self.properties["Name"], command,
 
196
                                os.WTERMSIG(condition)))
 
197
        self.update()
134
198
    
135
199
    def checker_started(self, command):
136
 
        self.logger(u'Client %s started checker "%s"'
137
 
                    % (self.properties[u"name"], unicode(command)))
 
200
        """Server signals that a checker started."""
 
201
        self.logger('Client {} started checker "{}"'
 
202
                    .format(self.properties["Name"],
 
203
                            command), level=0)
138
204
    
139
205
    def got_secret(self):
140
 
        self.logger(u'Client %s received its secret'
141
 
                    % self.properties[u"name"])
142
 
    
143
 
    def rejected(self):
144
 
        self.logger(u'Client %s was rejected'
145
 
                    % self.properties[u"name"])
 
206
        self.logger('Client {} received its secret'
 
207
                    .format(self.properties["Name"]))
 
208
    
 
209
    def need_approval(self, timeout, default):
 
210
        if not default:
 
211
            message = 'Client {} needs approval within {} seconds'
 
212
        else:
 
213
            message = 'Client {} will get its secret in {} seconds'
 
214
        self.logger(message.format(self.properties["Name"],
 
215
                                   timeout/1000))
 
216
    
 
217
    def rejected(self, reason):
 
218
        self.logger('Client {} was rejected; reason: {}'
 
219
                    .format(self.properties["Name"], reason))
146
220
    
147
221
    def selectable(self):
148
222
        """Make this a "selectable" widget.
149
223
        This overrides the method from urwid.FlowWidget."""
150
224
        return True
151
225
    
152
 
    def rows(self, (maxcol,), focus=False):
 
226
    def rows(self, maxcolrow, focus=False):
153
227
        """How many rows this widget will occupy might depend on
154
228
        whether we have focus or not.
155
229
        This overrides the method from urwid.FlowWidget"""
156
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
157
231
    
158
232
    def current_widget(self, focus=False):
159
233
        if focus or self.opened:
163
237
    def update(self):
164
238
        "Called when what is visible on the screen should be updated."
165
239
        # How to add standout mode to a style
166
 
        with_standout = { u"normal": u"standout",
167
 
                          u"bold": u"bold-standout",
168
 
                          u"underline-blink":
169
 
                              u"underline-blink-standout",
170
 
                          u"bold-underline-blink":
171
 
                              u"bold-underline-blink-standout",
 
240
        with_standout = { "normal": "standout",
 
241
                          "bold": "bold-standout",
 
242
                          "underline-blink":
 
243
                              "underline-blink-standout",
 
244
                          "bold-underline-blink":
 
245
                              "bold-underline-blink-standout",
172
246
                          }
173
247
        
174
248
        # Rebuild focus and non-focus widgets using current properties
175
 
        self._text = (u'%(name)s: %(enabled)s'
176
 
                      % { u"name": self.properties[u"name"],
177
 
                          u"enabled":
178
 
                              (u"enabled"
179
 
                               if self.properties[u"enabled"]
180
 
                               else u"DISABLED")})
 
249
        
 
250
        # Base part of a client. Name!
 
251
        base = '{name}: '.format(name=self.properties["Name"])
 
252
        if not self.properties["Enabled"]:
 
253
            message = "DISABLED"
 
254
            self.using_timer(False)
 
255
        elif self.properties["ApprovalPending"]:
 
256
            timeout = datetime.timedelta(milliseconds
 
257
                                         = self.properties
 
258
                                         ["ApprovalDelay"])
 
259
            last_approval_request = isoformat_to_datetime(
 
260
                self.properties["LastApprovalRequest"])
 
261
            if last_approval_request is not None:
 
262
                timer = max(timeout - (datetime.datetime.utcnow()
 
263
                                       - last_approval_request),
 
264
                            datetime.timedelta())
 
265
            else:
 
266
                timer = datetime.timedelta()
 
267
            if self.properties["ApprovedByDefault"]:
 
268
                message = "Approval in {}. (d)eny?"
 
269
            else:
 
270
                message = "Denial in {}. (a)pprove?"
 
271
            message = message.format(str(timer).rsplit(".", 1)[0])
 
272
            self.using_timer(True)
 
273
        elif self.properties["LastCheckerStatus"] != 0:
 
274
            # When checker has failed, show timer until client expires
 
275
            expires = self.properties["Expires"]
 
276
            if expires == "":
 
277
                timer = datetime.timedelta(0)
 
278
            else:
 
279
                expires = (datetime.datetime.strptime
 
280
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
281
                timer = max(expires - datetime.datetime.utcnow(),
 
282
                            datetime.timedelta())
 
283
            message = ('A checker has failed! Time until client'
 
284
                       ' gets disabled: {}'
 
285
                       .format(str(timer).rsplit(".", 1)[0]))
 
286
            self.using_timer(True)
 
287
        else:
 
288
            message = "enabled"
 
289
            self.using_timer(False)
 
290
        self._text = "{}{}".format(base, message)
 
291
        
181
292
        if not urwid.supports_unicode():
182
293
            self._text = self._text.encode("ascii", "replace")
183
 
        textlist = [(u"normal", self._text)]
 
294
        textlist = [("normal", self._text)]
184
295
        self._text_widget.set_text(textlist)
185
296
        self._focus_text_widget.set_text([(with_standout[text[0]],
186
297
                                           text[1])
194
305
        if self.update_hook is not None:
195
306
            self.update_hook()
196
307
    
197
 
    def delete(self):
 
308
    def update_timer(self):
 
309
        """called by GLib. Will indefinitely loop until
 
310
        GLib.source_remove() on tag is called
 
311
        """
 
312
        self.update()
 
313
        return True             # Keep calling this
 
314
    
 
315
    def delete(self, **kwargs):
 
316
        if self._update_timer_callback_tag is not None:
 
317
            GLib.source_remove(self._update_timer_callback_tag)
 
318
            self._update_timer_callback_tag = None
 
319
        for match in self.match_objects:
 
320
            match.remove()
 
321
        self.match_objects = ()
198
322
        if self.delete_hook is not None:
199
323
            self.delete_hook(self)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
200
325
    
201
 
    def render(self, (maxcol,), focus=False):
 
326
    def render(self, maxcolrow, focus=False):
202
327
        """Render differently if we have focus.
203
328
        This overrides the method from urwid.FlowWidget"""
204
 
        return self.current_widget(focus).render((maxcol,),
 
329
        return self.current_widget(focus).render(maxcolrow,
205
330
                                                 focus=focus)
206
331
    
207
 
    def keypress(self, (maxcol,), key):
 
332
    def keypress(self, maxcolrow, key):
208
333
        """Handle keys.
209
334
        This overrides the method from urwid.FlowWidget"""
210
 
        if key == u"e" or key == u"+":
211
 
            self.proxy.Enable()
212
 
        elif key == u"d" or key == u"-":
213
 
            self.proxy.Disable()
214
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
335
        if key == "+":
 
336
            self.proxy.Set(client_interface, "Enabled",
 
337
                           dbus.Boolean(True), ignore_reply = True,
 
338
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
339
        elif key == "-":
 
340
            self.proxy.Set(client_interface, "Enabled", False,
 
341
                           ignore_reply = True,
 
342
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
343
        elif key == "a":
 
344
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
345
                               dbus_interface = client_interface,
 
346
                               ignore_reply=True)
 
347
        elif key == "d":
 
348
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
349
                                  dbus_interface = client_interface,
 
350
                               ignore_reply=True)
 
351
        elif key == "R" or key == "_" or key == "ctrl k":
215
352
            self.server_proxy_object.RemoveClient(self.proxy
216
 
                                                  .object_path)
217
 
        elif key == u"s":
218
 
            self.proxy.StartChecker()
219
 
        elif key == u"S":
220
 
            self.proxy.StopChecker()
221
 
        elif key == u"C":
222
 
            self.proxy.CheckedOK()
 
353
                                                  .object_path,
 
354
                                                  ignore_reply=True)
 
355
        elif key == "s":
 
356
            self.proxy.Set(client_interface, "CheckerRunning",
 
357
                           dbus.Boolean(True), ignore_reply = True,
 
358
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
359
        elif key == "S":
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
                           dbus.Boolean(False), ignore_reply = True,
 
362
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
363
        elif key == "C":
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
                                 ignore_reply=True)
223
366
        # xxx
224
 
#         elif key == u"p" or key == "=":
 
367
#         elif key == "p" or key == "=":
225
368
#             self.proxy.pause()
226
 
#         elif key == u"u" or key == ":":
 
369
#         elif key == "u" or key == ":":
227
370
#             self.proxy.unpause()
228
 
#         elif key == u"RET":
 
371
#         elif key == "RET":
229
372
#             self.open()
230
373
        else:
231
374
            return key
232
375
    
233
 
    def property_changed(self, property=None, value=None,
234
 
                         *args, **kwargs):
235
 
        """Call self.update() if old value is not new value.
 
376
    def properties_changed(self, interface, properties, invalidated):
 
377
        """Call self.update() if any properties changed.
236
378
        This overrides the method from MandosClientPropertyCache"""
237
 
        property_name = unicode(property)
238
 
        old_value = self.properties.get(property_name)
239
 
        super(MandosClientWidget, self).property_changed(
240
 
            property=property, value=value, *args, **kwargs)
241
 
        if self.properties.get(property_name) != old_value:
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
 
381
        super(MandosClientWidget, self).properties_changed(
 
382
            interface, properties, invalidated)
 
383
        if any(old_values[key] != self.properties.get(key)
 
384
               for key in old_values):
242
385
            self.update()
243
386
 
244
387
 
247
390
    "down" key presses, thus not allowing any containing widgets to
248
391
    use them as an excuse to shift focus away from this widget.
249
392
    """
250
 
    def keypress(self, (maxcol, maxrow), key):
251
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
252
 
        if ret in (u"up", u"down"):
 
393
    def keypress(self, *args, **kwargs):
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
395
        if ret in ("up", "down"):
253
396
            return
254
397
        return ret
255
398
 
258
401
    """This is the entire user interface - the whole screen
259
402
    with boxes, lists of client widgets, etc.
260
403
    """
261
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
262
405
        DBusGMainLoop(set_as_default=True)
263
406
        
264
407
        self.screen = urwid.curses_display.Screen()
265
408
        
266
409
        self.screen.register_palette((
267
 
                (u"normal",
268
 
                 u"default", u"default", None),
269
 
                (u"bold",
270
 
                 u"default", u"default", u"bold"),
271
 
                (u"underline-blink",
272
 
                 u"default", u"default", u"underline"),
273
 
                (u"standout",
274
 
                 u"default", u"default", u"standout"),
275
 
                (u"bold-underline-blink",
276
 
                 u"default", u"default", (u"bold", u"underline")),
277
 
                (u"bold-standout",
278
 
                 u"default", u"default", (u"bold", u"standout")),
279
 
                (u"underline-blink-standout",
280
 
                 u"default", u"default", (u"underline", u"standout")),
281
 
                (u"bold-underline-blink-standout",
282
 
                 u"default", u"default", (u"bold", u"underline",
283
 
                                          u"standout")),
 
410
                ("normal",
 
411
                 "default", "default", None),
 
412
                ("bold",
 
413
                 "bold", "default", "bold"),
 
414
                ("underline-blink",
 
415
                 "underline,blink", "default", "underline,blink"),
 
416
                ("standout",
 
417
                 "standout", "default", "standout"),
 
418
                ("bold-underline-blink",
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
420
                ("bold-standout",
 
421
                 "bold,standout", "default", "bold,standout"),
 
422
                ("underline-blink-standout",
 
423
                 "underline,blink,standout", "default",
 
424
                 "underline,blink,standout"),
 
425
                ("bold-underline-blink-standout",
 
426
                 "bold,underline,blink,standout", "default",
 
427
                 "bold,underline,blink,standout"),
284
428
                ))
285
429
        
286
430
        if urwid.supports_unicode():
287
 
            self.divider = u"─" # \u2500
288
 
            #self.divider = u"━" # \u2501
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
289
433
        else:
290
 
            #self.divider = u"-" # \u002d
291
 
            self.divider = u"_" # \u005f
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
292
436
        
293
437
        self.screen.start()
294
438
        
301
445
        self.log = []
302
446
        self.max_log_length = max_log_length
303
447
        
 
448
        self.log_level = log_level
 
449
        
304
450
        # We keep a reference to the log widget so we can remove it
305
451
        # from the ListWalker without it getting destroyed
306
452
        self.logbox = ConstrainedListBox(self.log)
308
454
        # This keeps track of whether self.uilist currently has
309
455
        # self.logbox in it or not
310
456
        self.log_visible = True
311
 
        self.log_wrap = u"any"
 
457
        self.log_wrap = "any"
312
458
        
313
459
        self.rebuild()
314
 
        self.log_message_raw((u"bold",
315
 
                              u"Mandos Monitor version " + version))
316
 
        self.log_message_raw((u"bold",
317
 
                              u"q: Quit  ?: Help"))
 
460
        self.log_message_raw(("bold",
 
461
                              "Mandos Monitor version " + version))
 
462
        self.log_message_raw(("bold",
 
463
                              "q: Quit  ?: Help"))
318
464
        
319
465
        self.busname = domain + '.Mandos'
320
 
        self.main_loop = gobject.MainLoop()
321
 
        self.bus = dbus.SystemBus()
322
 
        mandos_dbus_objc = self.bus.get_object(
323
 
            self.busname, u"/", follow_name_owner_changes=True)
324
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
325
 
                                          dbus_interface
326
 
                                          = server_interface)
327
 
        try:
328
 
            mandos_clients = (self.mandos_serv
329
 
                              .GetAllClientsWithProperties())
330
 
        except dbus.exceptions.DBusException:
331
 
            mandos_clients = dbus.Dictionary()
332
 
        
333
 
        (self.mandos_serv
334
 
         .connect_to_signal(u"ClientRemoved",
335
 
                            self.find_and_remove_client,
336
 
                            dbus_interface=server_interface,
337
 
                            byte_arrays=True))
338
 
        (self.mandos_serv
339
 
         .connect_to_signal(u"ClientAdded",
340
 
                            self.add_new_client,
341
 
                            dbus_interface=server_interface,
342
 
                            byte_arrays=True))
343
 
        (self.mandos_serv
344
 
         .connect_to_signal(u"ClientNotFound",
345
 
                            self.client_not_found,
346
 
                            dbus_interface=server_interface,
347
 
                            byte_arrays=True))
348
 
        for path, client in mandos_clients.iteritems():
349
 
            client_proxy_object = self.bus.get_object(self.busname,
350
 
                                                      path)
351
 
            self.add_client(MandosClientWidget(server_proxy_object
352
 
                                               =self.mandos_serv,
353
 
                                               proxy_object
354
 
                                               =client_proxy_object,
355
 
                                               properties=client,
356
 
                                               update_hook
357
 
                                               =self.refresh,
358
 
                                               delete_hook
359
 
                                               =self.remove_client,
360
 
                                               logger
361
 
                                               =self.log_message),
362
 
                            path=path)
 
466
        self.main_loop = GLib.MainLoop()
363
467
    
364
468
    def client_not_found(self, fingerprint, address):
365
 
        self.log_message((u"Client with address %s and fingerprint %s"
366
 
                          u" could not be found" % (address,
367
 
                                                    fingerprint)))
 
469
        self.log_message("Client with address {} and fingerprint {}"
 
470
                         " could not be found"
 
471
                         .format(address, fingerprint))
368
472
    
369
473
    def rebuild(self):
370
474
        """This rebuilds the User Interface.
371
475
        Call this when the widget layout needs to change"""
372
476
        self.uilist = []
373
477
        #self.uilist.append(urwid.ListBox(self.clients))
374
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
478
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
                                                          clients),
375
480
                                       #header=urwid.Divider(),
376
481
                                       header=None,
377
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
482
                                       footer=
 
483
                                       urwid.Divider(div_char=
 
484
                                                     self.divider)))
378
485
        if self.log_visible:
379
486
            self.uilist.append(self.logbox)
380
 
            pass
381
487
        self.topwidget = urwid.Pile(self.uilist)
382
488
    
383
 
    def log_message(self, message):
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
384
493
        timestamp = datetime.datetime.now().isoformat()
385
 
        self.log_message_raw(timestamp + u": " + message)
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
495
                             level=level)
386
496
    
387
 
    def log_message_raw(self, markup):
 
497
    def log_message_raw(self, markup, level=1):
388
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
389
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
390
502
        if (self.max_log_length
391
503
            and len(self.log) > self.max_log_length):
392
504
            del self.log[0:len(self.log)-self.max_log_length-1]
393
505
        self.logbox.set_focus(len(self.logbox.body.contents),
394
 
                              coming_from=u"above")
 
506
                              coming_from="above")
395
507
        self.refresh()
396
508
    
397
509
    def toggle_log_display(self):
398
510
        """Toggle visibility of the log buffer."""
399
511
        self.log_visible = not self.log_visible
400
512
        self.rebuild()
401
 
        self.log_message(u"Log visibility changed to: "
402
 
                         + unicode(self.log_visible))
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
403
515
    
404
516
    def change_log_display(self):
405
517
        """Change type of log display.
406
518
        Currently, this toggles wrapping of text lines."""
407
 
        if self.log_wrap == u"clip":
408
 
            self.log_wrap = u"any"
 
519
        if self.log_wrap == "clip":
 
520
            self.log_wrap = "any"
409
521
        else:
410
 
            self.log_wrap = u"clip"
 
522
            self.log_wrap = "clip"
411
523
        for textwidget in self.log:
412
524
            textwidget.set_wrap_mode(self.log_wrap)
413
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
414
527
    
415
 
    def find_and_remove_client(self, path, name):
416
 
        """Find an client from its object path and remove it.
 
528
    def find_and_remove_client(self, path, interfaces):
 
529
        """Find a client by its object path and remove it.
417
530
        
418
 
        This is connected to the ClientRemoved signal from the
 
531
        This is connected to the InterfacesRemoved signal from the
419
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
420
536
        try:
421
537
            client = self.clients_dict[path]
422
538
        except KeyError:
423
539
            # not found?
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
424
542
            return
425
 
        self.remove_client(client, path)
 
543
        client.delete()
426
544
    
427
 
    def add_new_client(self, path, properties):
 
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
428
554
        client_proxy_object = self.bus.get_object(self.busname, path)
429
555
        self.add_client(MandosClientWidget(server_proxy_object
430
556
                                           =self.mandos_serv,
431
557
                                           proxy_object
432
558
                                           =client_proxy_object,
433
 
                                           properties=properties,
434
559
                                           update_hook
435
560
                                           =self.refresh,
436
561
                                           delete_hook
437
 
                                           =self.remove_client),
 
562
                                           =self.remove_client,
 
563
                                           logger
 
564
                                           =self.log_message,
 
565
                                           properties
 
566
                                           = dict(ifs_and_props[
 
567
                                               client_interface])),
438
568
                        path=path)
439
569
    
440
570
    def add_client(self, client, path=None):
442
572
        if path is None:
443
573
            path = client.proxy.object_path
444
574
        self.clients_dict[path] = client
445
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
575
        self.clients.sort(key=lambda c: c.properties["Name"])
446
576
        self.refresh()
447
577
    
448
578
    def remove_client(self, client, path=None):
450
580
        if path is None:
451
581
            path = client.proxy.object_path
452
582
        del self.clients_dict[path]
453
 
        if not self.clients_dict:
454
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
455
 
            # is completely emptied, we need to recreate it.
456
 
            self.clients = urwid.SimpleListWalker([])
457
 
            self.rebuild()
458
583
        self.refresh()
459
584
    
460
585
    def refresh(self):
464
589
    
465
590
    def run(self):
466
591
        """Start the main loop and exit when it's done."""
 
592
        self.bus = dbus.SystemBus()
 
593
        mandos_dbus_objc = self.bus.get_object(
 
594
            self.busname, "/", follow_name_owner_changes=True)
 
595
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
596
                                          dbus_interface
 
597
                                          = server_interface)
 
598
        try:
 
599
            mandos_clients = (self.mandos_serv
 
600
                              .GetAllClientsWithProperties())
 
601
            if not mandos_clients:
 
602
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
603
        except dbus.exceptions.DBusException:
 
604
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
605
            mandos_clients = dbus.Dictionary()
 
606
        
 
607
        (self.mandos_serv
 
608
         .connect_to_signal("InterfacesRemoved",
 
609
                            self.find_and_remove_client,
 
610
                            dbus_interface
 
611
                            = dbus.OBJECT_MANAGER_IFACE,
 
612
                            byte_arrays=True))
 
613
        (self.mandos_serv
 
614
         .connect_to_signal("InterfacesAdded",
 
615
                            self.add_new_client,
 
616
                            dbus_interface
 
617
                            = dbus.OBJECT_MANAGER_IFACE,
 
618
                            byte_arrays=True))
 
619
        (self.mandos_serv
 
620
         .connect_to_signal("ClientNotFound",
 
621
                            self.client_not_found,
 
622
                            dbus_interface=server_interface,
 
623
                            byte_arrays=True))
 
624
        for path, client in mandos_clients.items():
 
625
            client_proxy_object = self.bus.get_object(self.busname,
 
626
                                                      path)
 
627
            self.add_client(MandosClientWidget(server_proxy_object
 
628
                                               =self.mandos_serv,
 
629
                                               proxy_object
 
630
                                               =client_proxy_object,
 
631
                                               properties=client,
 
632
                                               update_hook
 
633
                                               =self.refresh,
 
634
                                               delete_hook
 
635
                                               =self.remove_client,
 
636
                                               logger
 
637
                                               =self.log_message),
 
638
                            path=path)
 
639
        
467
640
        self.refresh()
468
 
        self._input_callback_tag = (gobject.io_add_watch
 
641
        self._input_callback_tag = (GLib.io_add_watch
469
642
                                    (sys.stdin.fileno(),
470
 
                                     gobject.IO_IN,
 
643
                                     GLib.IO_IN,
471
644
                                     self.process_input))
472
645
        self.main_loop.run()
473
646
        # Main loop has finished, we should close everything now
474
 
        gobject.source_remove(self._input_callback_tag)
 
647
        GLib.source_remove(self._input_callback_tag)
475
648
        self.screen.stop()
476
649
    
477
650
    def stop(self):
479
652
    
480
653
    def process_input(self, source, condition):
481
654
        keys = self.screen.get_input()
482
 
        translations = { u"ctrl n": u"down",      # Emacs
483
 
                         u"ctrl p": u"up",        # Emacs
484
 
                         u"ctrl v": u"page down", # Emacs
485
 
                         u"meta v": u"page up",   # Emacs
486
 
                         u" ": u"page down",      # less
487
 
                         u"f": u"page down",      # less
488
 
                         u"b": u"page up",        # less
489
 
                         u"j": u"down",           # vi
490
 
                         u"k": u"up",             # vi
 
655
        translations = { "ctrl n": "down",      # Emacs
 
656
                         "ctrl p": "up",        # Emacs
 
657
                         "ctrl v": "page down", # Emacs
 
658
                         "meta v": "page up",   # Emacs
 
659
                         " ": "page down",      # less
 
660
                         "f": "page down",      # less
 
661
                         "b": "page up",        # less
 
662
                         "j": "down",           # vi
 
663
                         "k": "up",             # vi
491
664
                         }
492
665
        for key in keys:
493
666
            try:
495
668
            except KeyError:    # :-)
496
669
                pass
497
670
            
498
 
            if key == u"q" or key == u"Q":
 
671
            if key == "q" or key == "Q":
499
672
                self.stop()
500
673
                break
501
 
            elif key == u"window resize":
 
674
            elif key == "window resize":
502
675
                self.size = self.screen.get_cols_rows()
503
676
                self.refresh()
504
 
            elif key == u"\f":  # Ctrl-L
 
677
            elif key == "ctrl l":
 
678
                self.screen.clear()
505
679
                self.refresh()
506
 
            elif key == u"l" or key == u"D":
 
680
            elif key == "l" or key == "D":
507
681
                self.toggle_log_display()
508
682
                self.refresh()
509
 
            elif key == u"w" or key == u"i":
 
683
            elif key == "w" or key == "i":
510
684
                self.change_log_display()
511
685
                self.refresh()
512
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
686
            elif key == "?" or key == "f1" or key == "esc":
513
687
                if not self.log_visible:
514
688
                    self.log_visible = True
515
689
                    self.rebuild()
516
 
                self.log_message_raw((u"bold",
517
 
                                      u"  ".
518
 
                                      join((u"q: Quit",
519
 
                                            u"?: Help",
520
 
                                            u"l: Log window toggle",
521
 
                                            u"TAB: Switch window",
522
 
                                            u"w: Wrap (log)"))))
523
 
                self.log_message_raw((u"bold",
524
 
                                      u"  "
525
 
                                      .join((u"Clients:",
526
 
                                             u"e: Enable",
527
 
                                             u"d: Disable",
528
 
                                             u"r: Remove",
529
 
                                             u"s: Start new checker",
530
 
                                             u"S: Stop checker",
531
 
                                             u"C: Checker OK"))))
 
690
                self.log_message_raw(("bold",
 
691
                                      "  ".
 
692
                                      join(("q: Quit",
 
693
                                            "?: Help",
 
694
                                            "l: Log window toggle",
 
695
                                            "TAB: Switch window",
 
696
                                            "w: Wrap (log lines)",
 
697
                                            "v: Toggle verbose log",
 
698
                                            ))))
 
699
                self.log_message_raw(("bold",
 
700
                                      "  "
 
701
                                      .join(("Clients:",
 
702
                                             "+: Enable",
 
703
                                             "-: Disable",
 
704
                                             "R: Remove",
 
705
                                             "s: Start new checker",
 
706
                                             "S: Stop checker",
 
707
                                             "C: Checker OK",
 
708
                                             "a: Approve",
 
709
                                             "d: Deny"))))
532
710
                self.refresh()
533
 
            elif key == u"tab":
 
711
            elif key == "tab":
534
712
                if self.topwidget.get_focus() is self.logbox:
535
713
                    self.topwidget.set_focus(0)
536
714
                else:
537
715
                    self.topwidget.set_focus(self.logbox)
538
716
                self.refresh()
539
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
540
 
            #      or key == u">"):
 
717
            elif key == "v":
 
718
                if self.log_level == 0:
 
719
                    self.log_level = 1
 
720
                    self.log_message("Verbose mode: Off")
 
721
                else:
 
722
                    self.log_level = 0
 
723
                    self.log_message("Verbose mode: On")
 
724
            #elif (key == "end" or key == "meta >" or key == "G"
 
725
            #      or key == ">"):
541
726
            #    pass            # xxx end-of-buffer
542
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
543
 
            #      or key == u"<"):
 
727
            #elif (key == "home" or key == "meta <" or key == "g"
 
728
            #      or key == "<"):
544
729
            #    pass            # xxx beginning-of-buffer
545
 
            #elif key == u"ctrl e" or key == u"$":
 
730
            #elif key == "ctrl e" or key == "$":
546
731
            #    pass            # xxx move-end-of-line
547
 
            #elif key == u"ctrl a" or key == u"^":
 
732
            #elif key == "ctrl a" or key == "^":
548
733
            #    pass            # xxx move-beginning-of-line
549
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
734
            #elif key == "ctrl b" or key == "meta (" or key == "h":
550
735
            #    pass            # xxx left
551
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
736
            #elif key == "ctrl f" or key == "meta )" or key == "l":
552
737
            #    pass            # xxx right
553
 
            #elif key == u"a":
 
738
            #elif key == "a":
554
739
            #    pass            # scroll up log
555
 
            #elif key == u"z":
 
740
            #elif key == "z":
556
741
            #    pass            # scroll down log
557
742
            elif self.topwidget.selectable():
558
743
                self.topwidget.keypress(self.size, key)
562
747
ui = UserInterface()
563
748
try:
564
749
    ui.run()
565
 
except:
 
750
except KeyboardInterrupt:
 
751
    ui.screen.stop()
 
752
except Exception as e:
 
753
    ui.log_message(str(e))
566
754
    ui.screen.stop()
567
755
    raise