/mandos/trunk

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

« back to all changes in this revision

Viewing changes to mandos-monitor

  • Committer: Teddy Hogeborn
  • Date: 2015-10-04 13:44:03 UTC
  • Revision ID: teddy@recompile.se-20151004134403-jn72bwgbw3aocllk
* initramfs-tools-hook: Don't try to chmod symlinks.

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 © 2009-2015 Teddy Hogeborn
 
7
# Copyright © 2009-2015 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
 
import signal
 
34
import os
 
35
 
 
36
import datetime
8
37
 
9
38
import urwid.curses_display
10
39
import urwid
11
40
 
12
41
from dbus.mainloop.glib import DBusGMainLoop
13
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
14
46
 
15
47
import dbus
16
48
 
17
 
import UserList
 
49
import locale
 
50
 
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
 
56
import logging
 
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
18
58
 
19
59
# Some useful constants
20
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
21
61
server_interface = domain + '.Mandos'
22
62
client_interface = domain + '.Mandos.Client'
23
 
version = "1.0.14"
24
 
 
25
 
# Always run in monochrome mode
26
 
urwid.curses_display.curses.has_colors = lambda : False
27
 
 
28
 
# Urwid doesn't support blinking, but we want it.  Since we have no
29
 
# use for underline on its own, we make underline also always blink.
30
 
urwid.curses_display.curses.A_UNDERLINE |= (
31
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.7.0"
 
64
 
 
65
try:
 
66
    dbus.OBJECT_MANAGER_IFACE
 
67
except AttributeError:
 
68
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
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
32
85
 
33
86
class MandosClientPropertyCache(object):
34
87
    """This wraps a Mandos Client D-Bus proxy object, caches the
35
88
    properties and calls a hook function when any of them are
36
89
    changed.
37
90
    """
38
 
    def __init__(self, proxy_object=None, properties=None, *args,
39
 
                 **kwargs):
 
91
    def __init__(self, proxy_object=None, properties=None, **kwargs):
40
92
        self.proxy = proxy_object # Mandos Client proxy object
41
 
        
42
 
        if properties is None:
43
 
            self.properties = dict()
44
 
        else:
45
 
            self.properties = properties
46
 
        self.proxy.connect_to_signal("PropertyChanged",
47
 
                                     self.property_changed,
48
 
                                     client_interface,
49
 
                                     byte_arrays=True)
50
 
        
51
 
        if properties is None:
52
 
            self.properties.update(self.proxy.GetAll(client_interface,
53
 
                                                     dbus_interface =
54
 
                                                     dbus.PROPERTIES_IFACE))
55
 
        super(MandosClientPropertyCache, self).__init__(
56
 
            proxy_object=proxy_object,
57
 
            properties=properties, *args, **kwargs)
 
93
        self.properties = dict() if properties is None else properties
 
94
        self.property_changed_match = (
 
95
            self.proxy.connect_to_signal("PropertiesChanged",
 
96
                                         self.properties_changed,
 
97
                                         dbus.PROPERTIES_IFACE,
 
98
                                         byte_arrays=True))
 
99
        
 
100
        if properties is None:
 
101
            self.properties.update(
 
102
                self.proxy.GetAll(client_interface,
 
103
                                  dbus_interface
 
104
                                  = dbus.PROPERTIES_IFACE))
 
105
        
 
106
        super(MandosClientPropertyCache, self).__init__(**kwargs)
58
107
    
59
 
    def property_changed(self, property=None, value=None):
60
 
        """This is called whenever we get a PropertyChanged signal
61
 
        It updates the changed property in the "properties" dict.
 
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.
62
111
        """
63
112
        # Update properties dict with new value
64
 
        self.properties[property] = value
 
113
        if interface == client_interface:
 
114
            self.properties.update(properties)
 
115
    
 
116
    def delete(self):
 
117
        self.property_changed_match.remove()
65
118
 
66
119
 
67
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
69
122
    """
70
123
    
71
124
    def __init__(self, server_proxy_object=None, update_hook=None,
72
 
                 delete_hook=None, *args, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
73
126
        # Called on update
74
127
        self.update_hook = update_hook
75
128
        # Called on delete
76
129
        self.delete_hook = delete_hook
77
130
        # Mandos Server proxy object
78
131
        self.server_proxy_object = server_proxy_object
 
132
        # Logger
 
133
        self.logger = logger
 
134
        
 
135
        self._update_timer_callback_tag = None
79
136
        
80
137
        # The widget shown normally
81
138
        self._text_widget = urwid.Text("")
82
139
        # The widget shown when we have focus
83
140
        self._focus_text_widget = urwid.Text("")
84
 
        super(MandosClientWidget, self).__init__(
85
 
            update_hook=update_hook, delete_hook=delete_hook,
86
 
            *args, **kwargs)
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
87
142
        self.update()
88
143
        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 = (gobject.timeout_add
 
176
                                               (1000,
 
177
                                                self.update_timer))
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
179
            gobject.source_remove(self._update_timer_callback_tag)
 
180
            self._update_timer_callback_tag = None
 
181
    
 
182
    def checker_completed(self, exitstatus, condition, command):
 
183
        if exitstatus == 0:
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
 
187
            self.update()
 
188
            return
 
189
        # Checker failed
 
190
        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
    
 
202
    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
    
 
208
    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))
89
223
    
90
224
    def selectable(self):
91
225
        """Make this a "selectable" widget.
92
226
        This overrides the method from urwid.FlowWidget."""
93
227
        return True
94
228
    
95
 
    def rows(self, (maxcol,), focus=False):
 
229
    def rows(self, maxcolrow, focus=False):
96
230
        """How many rows this widget will occupy might depend on
97
231
        whether we have focus or not.
98
232
        This overrides the method from urwid.FlowWidget"""
99
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
100
234
    
101
235
    def current_widget(self, focus=False):
102
236
        if focus or self.opened:
106
240
    def update(self):
107
241
        "Called when what is visible on the screen should be updated."
108
242
        # How to add standout mode to a style
109
 
        with_standout = { u"normal": u"standout",
110
 
                          u"bold": u"bold-standout",
111
 
                          u"underline-blink":
112
 
                              u"underline-blink-standout",
113
 
                          u"bold-underline-blink":
114
 
                              u"bold-underline-blink-standout",
 
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",
115
249
                          }
116
250
        
117
251
        # Rebuild focus and non-focus widgets using current properties
118
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
119
 
                      % self.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(milliseconds
 
260
                                         = self.properties
 
261
                                         ["ApprovalDelay"])
 
262
            last_approval_request = isoformat_to_datetime(
 
263
                self.properties["LastApprovalRequest"])
 
264
            if last_approval_request is not None:
 
265
                timer = max(timeout - (datetime.datetime.utcnow()
 
266
                                       - last_approval_request),
 
267
                            datetime.timedelta())
 
268
            else:
 
269
                timer = datetime.timedelta()
 
270
            if self.properties["ApprovedByDefault"]:
 
271
                message = "Approval in {}. (d)eny?"
 
272
            else:
 
273
                message = "Denial in {}. (a)pprove?"
 
274
            message = message.format(str(timer).rsplit(".", 1)[0])
 
275
            self.using_timer(True)
 
276
        elif self.properties["LastCheckerStatus"] != 0:
 
277
            # When checker has failed, show timer until client expires
 
278
            expires = self.properties["Expires"]
 
279
            if expires == "":
 
280
                timer = datetime.timedelta(0)
 
281
            else:
 
282
                expires = (datetime.datetime.strptime
 
283
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
284
                timer = max(expires - datetime.datetime.utcnow(),
 
285
                            datetime.timedelta())
 
286
            message = ('A checker has failed! Time until client'
 
287
                       ' gets disabled: {}'
 
288
                       .format(str(timer).rsplit(".", 1)[0]))
 
289
            self.using_timer(True)
 
290
        else:
 
291
            message = "enabled"
 
292
            self.using_timer(False)
 
293
        self._text = "{}{}".format(base, message)
 
294
        
120
295
        if not urwid.supports_unicode():
121
296
            self._text = self._text.encode("ascii", "replace")
122
 
        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
 
297
        textlist = [("normal", self._text)]
123
298
        self._text_widget.set_text(textlist)
124
299
        self._focus_text_widget.set_text([(with_standout[text[0]],
125
300
                                           text[1])
133
308
        if self.update_hook is not None:
134
309
            self.update_hook()
135
310
    
136
 
    def delete(self):
 
311
    def update_timer(self):
 
312
        """called by gobject. Will indefinitely loop until
 
313
        gobject.source_remove() on tag is called"""
 
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
            gobject.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 = ()
137
324
        if self.delete_hook is not None:
138
325
            self.delete_hook(self)
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
139
327
    
140
 
    def render(self, (maxcol,), focus=False):
 
328
    def render(self, maxcolrow, focus=False):
141
329
        """Render differently if we have focus.
142
330
        This overrides the method from urwid.FlowWidget"""
143
 
        return self.current_widget(focus).render((maxcol,),
 
331
        return self.current_widget(focus).render(maxcolrow,
144
332
                                                 focus=focus)
145
333
    
146
 
    def keypress(self, (maxcol,), key):
 
334
    def keypress(self, maxcolrow, key):
147
335
        """Handle keys.
148
336
        This overrides the method from urwid.FlowWidget"""
149
 
        if key == u"e" or key == u"+":
150
 
            self.proxy.Enable()
151
 
        elif key == u"d" or key == u"-":
152
 
            self.proxy.Disable()
153
 
        elif key == u"r" or key == u"_":
 
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":
154
354
            self.server_proxy_object.RemoveClient(self.proxy
155
 
                                                  .object_path)
156
 
        elif key == u"s":
157
 
            self.proxy.StartChecker()
158
 
        elif key == u"c":
159
 
            self.proxy.StopChecker()
160
 
        elif key == u"S":
161
 
            self.proxy.CheckedOK()
 
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)
162
368
        # xxx
163
 
#         elif key == u"p" or key == "=":
 
369
#         elif key == "p" or key == "=":
164
370
#             self.proxy.pause()
165
 
#         elif key == u"u" or key == ":":
 
371
#         elif key == "u" or key == ":":
166
372
#             self.proxy.unpause()
167
 
#         elif key == u"RET":
 
373
#         elif key == "RET":
168
374
#             self.open()
169
375
        else:
170
376
            return key
171
377
    
172
 
    def property_changed(self, property=None, value=None,
173
 
                         *args, **kwargs):
174
 
        """Call self.update() if old value is not new value.
 
378
    def properties_changed(self, interface, properties, invalidated):
 
379
        """Call self.update() if any properties changed.
175
380
        This overrides the method from MandosClientPropertyCache"""
176
 
        property_name = unicode(property)
177
 
        old_value = self.properties.get(property_name)
178
 
        super(MandosClientWidget, self).property_changed(
179
 
            property=property, value=value, *args, **kwargs)
180
 
        if self.properties.get(property_name) != old_value:
 
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):
181
387
            self.update()
182
388
 
183
389
 
186
392
    "down" key presses, thus not allowing any containing widgets to
187
393
    use them as an excuse to shift focus away from this widget.
188
394
    """
189
 
    def keypress(self, (maxcol, maxrow), key):
190
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
 
        if ret in (u"up", u"down"):
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
397
        if ret in ("up", "down"):
192
398
            return
193
399
        return ret
194
400
 
197
403
    """This is the entire user interface - the whole screen
198
404
    with boxes, lists of client widgets, etc.
199
405
    """
200
 
    def __init__(self, max_log_length=1000):
 
406
    def __init__(self, max_log_length=1000, log_level=1):
201
407
        DBusGMainLoop(set_as_default=True)
202
408
        
203
409
        self.screen = urwid.curses_display.Screen()
204
410
        
205
411
        self.screen.register_palette((
206
 
                (u"normal",
207
 
                 u"default", u"default", None),
208
 
                (u"bold",
209
 
                 u"default", u"default", u"bold"),
210
 
                (u"underline-blink",
211
 
                 u"default", u"default", u"underline"),
212
 
                (u"standout",
213
 
                 u"default", u"default", u"standout"),
214
 
                (u"bold-underline-blink",
215
 
                 u"default", u"default", (u"bold", u"underline")),
216
 
                (u"bold-standout",
217
 
                 u"default", u"default", (u"bold", u"standout")),
218
 
                (u"underline-blink-standout",
219
 
                 u"default", u"default", (u"underline", u"standout")),
220
 
                (u"bold-underline-blink-standout",
221
 
                 u"default", u"default", (u"bold", u"underline",
222
 
                                          u"standout")),
 
412
                ("normal",
 
413
                 "default", "default", None),
 
414
                ("bold",
 
415
                 "bold", "default", "bold"),
 
416
                ("underline-blink",
 
417
                 "underline,blink", "default", "underline,blink"),
 
418
                ("standout",
 
419
                 "standout", "default", "standout"),
 
420
                ("bold-underline-blink",
 
421
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
422
                ("bold-standout",
 
423
                 "bold,standout", "default", "bold,standout"),
 
424
                ("underline-blink-standout",
 
425
                 "underline,blink,standout", "default",
 
426
                 "underline,blink,standout"),
 
427
                ("bold-underline-blink-standout",
 
428
                 "bold,underline,blink,standout", "default",
 
429
                 "bold,underline,blink,standout"),
223
430
                ))
224
431
        
225
432
        if urwid.supports_unicode():
226
 
            #self.divider = u"─" # \u2500
227
 
            self.divider = u"━" # \u2501
 
433
            self.divider = "─" # \u2500
 
434
            #self.divider = "━" # \u2501
228
435
        else:
229
 
            #self.divider = u"-" # \u002d
230
 
            self.divider = u"_" # \u005f
 
436
            #self.divider = "-" # \u002d
 
437
            self.divider = "_" # \u005f
231
438
        
232
439
        self.screen.start()
233
440
        
240
447
        self.log = []
241
448
        self.max_log_length = max_log_length
242
449
        
 
450
        self.log_level = log_level
 
451
        
243
452
        # We keep a reference to the log widget so we can remove it
244
453
        # from the ListWalker without it getting destroyed
245
454
        self.logbox = ConstrainedListBox(self.log)
247
456
        # This keeps track of whether self.uilist currently has
248
457
        # self.logbox in it or not
249
458
        self.log_visible = True
250
 
        self.log_wrap = u"any"
 
459
        self.log_wrap = "any"
251
460
        
252
461
        self.rebuild()
253
 
        self.log_message(u"Message")
254
 
        self.log_message(u"Message0 Message1 Message2 Message3 Message4 Message5 Message6 Message7 Message8 Message9")
255
 
        self.log_message(u"Message10 Message11 Message12 Message13 Message14 Message15 Message16 Message17 Message18 Message19")
256
 
        self.log_message(u"Message20 Message21 Message22 Message23 Message24 Message25 Message26 Message27 Message28 Message29")
 
462
        self.log_message_raw(("bold",
 
463
                              "Mandos Monitor version " + version))
 
464
        self.log_message_raw(("bold",
 
465
                              "q: Quit  ?: Help"))
257
466
        
258
467
        self.busname = domain + '.Mandos'
259
468
        self.main_loop = gobject.MainLoop()
260
 
        self.bus = dbus.SystemBus()
261
 
        mandos_dbus_objc = self.bus.get_object(
262
 
            self.busname, u"/", follow_name_owner_changes=True)
263
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
264
 
                                          dbus_interface
265
 
                                          = server_interface)
266
 
        try:
267
 
            mandos_clients = (self.mandos_serv
268
 
                              .GetAllClientsWithProperties())
269
 
        except dbus.exceptions.DBusException:
270
 
            mandos_clients = dbus.Dictionary()
271
 
        
272
 
        (self.mandos_serv
273
 
         .connect_to_signal("ClientRemoved",
274
 
                            self.find_and_remove_client,
275
 
                            dbus_interface=server_interface,
276
 
                            byte_arrays=True))
277
 
        (self.mandos_serv
278
 
         .connect_to_signal("ClientAdded",
279
 
                            self.add_new_client,
280
 
                            dbus_interface=server_interface,
281
 
                            byte_arrays=True))
282
 
        for path, client in mandos_clients.iteritems():
283
 
            client_proxy_object = self.bus.get_object(self.busname,
284
 
                                                      path)
285
 
            self.add_client(MandosClientWidget(server_proxy_object
286
 
                                               =self.mandos_serv,
287
 
                                               proxy_object
288
 
                                               =client_proxy_object,
289
 
                                               properties=client,
290
 
                                               update_hook
291
 
                                               =self.refresh,
292
 
                                               delete_hook
293
 
                                               =self.remove_client),
294
 
                            path=path)
 
469
    
 
470
    def client_not_found(self, fingerprint, address):
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
295
474
    
296
475
    def rebuild(self):
297
476
        """This rebuilds the User Interface.
298
477
        Call this when the widget layout needs to change"""
299
478
        self.uilist = []
300
479
        #self.uilist.append(urwid.ListBox(self.clients))
301
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
481
                                                          clients),
302
482
                                       #header=urwid.Divider(),
303
483
                                       header=None,
304
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
484
                                       footer=
 
485
                                       urwid.Divider(div_char=
 
486
                                                     self.divider)))
305
487
        if self.log_visible:
306
488
            self.uilist.append(self.logbox)
307
 
            pass
308
489
        self.topwidget = urwid.Pile(self.uilist)
309
490
    
310
 
    def log_message(self, markup):
 
491
    def log_message(self, message, level=1):
 
492
        """Log message formatted with timestamp"""
 
493
        if level < self.log_level:
 
494
            return
 
495
        timestamp = datetime.datetime.now().isoformat()
 
496
        self.log_message_raw("{}: {}".format(timestamp, message),
 
497
                             level=level)
 
498
    
 
499
    def log_message_raw(self, markup, level=1):
311
500
        """Add a log message to the log buffer."""
 
501
        if level < self.log_level:
 
502
            return
312
503
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
313
504
        if (self.max_log_length
314
505
            and len(self.log) > self.max_log_length):
315
506
            del self.log[0:len(self.log)-self.max_log_length-1]
 
507
        self.logbox.set_focus(len(self.logbox.body.contents),
 
508
                              coming_from="above")
 
509
        self.refresh()
316
510
    
317
511
    def toggle_log_display(self):
318
512
        """Toggle visibility of the log buffer."""
319
513
        self.log_visible = not self.log_visible
320
514
        self.rebuild()
321
 
        self.log_message(u"Log visibility changed to: "
322
 
                         + unicode(self.log_visible))
 
515
        self.log_message("Log visibility changed to: {}"
 
516
                         .format(self.log_visible), level=0)
323
517
    
324
518
    def change_log_display(self):
325
519
        """Change type of log display.
326
520
        Currently, this toggles wrapping of text lines."""
327
 
        if self.log_wrap == u"clip":
328
 
            self.log_wrap = u"any"
 
521
        if self.log_wrap == "clip":
 
522
            self.log_wrap = "any"
329
523
        else:
330
 
            self.log_wrap = u"clip"
 
524
            self.log_wrap = "clip"
331
525
        for textwidget in self.log:
332
526
            textwidget.set_wrap_mode(self.log_wrap)
333
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
527
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
528
                         level=0)
334
529
    
335
 
    def find_and_remove_client(self, path, name):
336
 
        """Find an client from its object path and remove it.
 
530
    def find_and_remove_client(self, path, interfaces):
 
531
        """Find a client by its object path and remove it.
337
532
        
338
 
        This is connected to the ClientRemoved signal from the
 
533
        This is connected to the InterfacesRemoved signal from the
339
534
        Mandos server object."""
 
535
        if client_interface not in interfaces:
 
536
            # Not a Mandos client object; ignore
 
537
            return
340
538
        try:
341
539
            client = self.clients_dict[path]
342
540
        except KeyError:
343
541
            # not found?
 
542
            self.log_message("Unknown client {!r} removed"
 
543
                             .format(path))
344
544
            return
345
 
        self.remove_client(client, path)
 
545
        client.delete()
346
546
    
347
 
    def add_new_client(self, path, properties):
 
547
    def add_new_client(self, path, ifs_and_props):
 
548
        """Find a client by its object path and remove it.
 
549
        
 
550
        This is connected to the InterfacesAdded signal from the
 
551
        Mandos server object.
 
552
        """
 
553
        if client_interface not in ifs_and_props:
 
554
            # Not a Mandos client object; ignore
 
555
            return
348
556
        client_proxy_object = self.bus.get_object(self.busname, path)
349
557
        self.add_client(MandosClientWidget(server_proxy_object
350
558
                                           =self.mandos_serv,
351
559
                                           proxy_object
352
560
                                           =client_proxy_object,
353
 
                                           properties=properties,
354
561
                                           update_hook
355
562
                                           =self.refresh,
356
563
                                           delete_hook
357
 
                                           =self.remove_client),
 
564
                                           =self.remove_client,
 
565
                                           logger
 
566
                                           =self.log_message,
 
567
                                           properties
 
568
                                           = dict(ifs_and_props[
 
569
                                               client_interface])),
358
570
                        path=path)
359
571
    
360
572
    def add_client(self, client, path=None):
362
574
        if path is None:
363
575
            path = client.proxy.object_path
364
576
        self.clients_dict[path] = client
365
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
577
        self.clients.sort(key=lambda c: c.properties["Name"])
366
578
        self.refresh()
367
579
    
368
580
    def remove_client(self, client, path=None):
370
582
        if path is None:
371
583
            path = client.proxy.object_path
372
584
        del self.clients_dict[path]
373
 
        if not self.clients_dict:
374
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
375
 
            # is completely emptied, we need to recreate it.
376
 
            self.clients = urwid.SimpleListWalker([])
377
 
            self.rebuild()
378
585
        self.refresh()
379
586
    
380
587
    def refresh(self):
384
591
    
385
592
    def run(self):
386
593
        """Start the main loop and exit when it's done."""
 
594
        self.bus = dbus.SystemBus()
 
595
        mandos_dbus_objc = self.bus.get_object(
 
596
            self.busname, "/", follow_name_owner_changes=True)
 
597
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
598
                                          dbus_interface
 
599
                                          = server_interface)
 
600
        try:
 
601
            mandos_clients = (self.mandos_serv
 
602
                              .GetAllClientsWithProperties())
 
603
            if not mandos_clients:
 
604
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
605
        except dbus.exceptions.DBusException:
 
606
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
607
            mandos_clients = dbus.Dictionary()
 
608
        
 
609
        (self.mandos_serv
 
610
         .connect_to_signal("InterfacesRemoved",
 
611
                            self.find_and_remove_client,
 
612
                            dbus_interface
 
613
                            = dbus.OBJECT_MANAGER_IFACE,
 
614
                            byte_arrays=True))
 
615
        (self.mandos_serv
 
616
         .connect_to_signal("InterfacesAdded",
 
617
                            self.add_new_client,
 
618
                            dbus_interface
 
619
                            = dbus.OBJECT_MANAGER_IFACE,
 
620
                            byte_arrays=True))
 
621
        (self.mandos_serv
 
622
         .connect_to_signal("ClientNotFound",
 
623
                            self.client_not_found,
 
624
                            dbus_interface=server_interface,
 
625
                            byte_arrays=True))
 
626
        for path, client in mandos_clients.items():
 
627
            client_proxy_object = self.bus.get_object(self.busname,
 
628
                                                      path)
 
629
            self.add_client(MandosClientWidget(server_proxy_object
 
630
                                               =self.mandos_serv,
 
631
                                               proxy_object
 
632
                                               =client_proxy_object,
 
633
                                               properties=client,
 
634
                                               update_hook
 
635
                                               =self.refresh,
 
636
                                               delete_hook
 
637
                                               =self.remove_client,
 
638
                                               logger
 
639
                                               =self.log_message),
 
640
                            path=path)
 
641
        
387
642
        self.refresh()
388
643
        self._input_callback_tag = (gobject.io_add_watch
389
644
                                    (sys.stdin.fileno(),
399
654
    
400
655
    def process_input(self, source, condition):
401
656
        keys = self.screen.get_input()
402
 
        translations = { u"ctrl n": u"down",      # Emacs
403
 
                         u"ctrl p": u"up",        # Emacs
404
 
                         u"ctrl v": u"page down", # Emacs
405
 
                         u"meta v": u"page up",   # Emacs
406
 
                         u" ": u"page down",      # less
407
 
                         u"f": u"page down",      # less
408
 
                         u"b": u"page up",        # less
409
 
                         u"j": u"down",           # vi
410
 
                         u"k": u"up",             # vi
 
657
        translations = { "ctrl n": "down",      # Emacs
 
658
                         "ctrl p": "up",        # Emacs
 
659
                         "ctrl v": "page down", # Emacs
 
660
                         "meta v": "page up",   # Emacs
 
661
                         " ": "page down",      # less
 
662
                         "f": "page down",      # less
 
663
                         "b": "page up",        # less
 
664
                         "j": "down",           # vi
 
665
                         "k": "up",             # vi
411
666
                         }
412
667
        for key in keys:
413
668
            try:
415
670
            except KeyError:    # :-)
416
671
                pass
417
672
            
418
 
            if key == u"q" or key == u"Q":
 
673
            if key == "q" or key == "Q":
419
674
                self.stop()
420
675
                break
421
 
            elif key == u"window resize":
 
676
            elif key == "window resize":
422
677
                self.size = self.screen.get_cols_rows()
423
678
                self.refresh()
424
 
            elif key == u"\f":  # Ctrl-L
 
679
            elif key == "ctrl l":
 
680
                self.screen.clear()
425
681
                self.refresh()
426
 
            elif key == u"l" or key == u"D":
 
682
            elif key == "l" or key == "D":
427
683
                self.toggle_log_display()
428
684
                self.refresh()
429
 
            elif key == u"w" or key == u"i":
 
685
            elif key == "w" or key == "i":
430
686
                self.change_log_display()
431
687
                self.refresh()
432
 
            elif key == u"?" or key == u"f1":
433
 
                self.log_message(u"Help!")
 
688
            elif key == "?" or key == "f1" or key == "esc":
 
689
                if not self.log_visible:
 
690
                    self.log_visible = True
 
691
                    self.rebuild()
 
692
                self.log_message_raw(("bold",
 
693
                                      "  ".
 
694
                                      join(("q: Quit",
 
695
                                            "?: Help",
 
696
                                            "l: Log window toggle",
 
697
                                            "TAB: Switch window",
 
698
                                            "w: Wrap (log lines)",
 
699
                                            "v: Toggle verbose log",
 
700
                                            ))))
 
701
                self.log_message_raw(("bold",
 
702
                                      "  "
 
703
                                      .join(("Clients:",
 
704
                                             "+: Enable",
 
705
                                             "-: Disable",
 
706
                                             "R: Remove",
 
707
                                             "s: Start new checker",
 
708
                                             "S: Stop checker",
 
709
                                             "C: Checker OK",
 
710
                                             "a: Approve",
 
711
                                             "d: Deny"))))
434
712
                self.refresh()
435
 
            elif key == u"tab":
 
713
            elif key == "tab":
436
714
                if self.topwidget.get_focus() is self.logbox:
437
715
                    self.topwidget.set_focus(0)
438
716
                else:
439
717
                    self.topwidget.set_focus(self.logbox)
440
718
                self.refresh()
441
 
            elif (key == u"end" or key == u"meta >" or key == u"G"
442
 
                  or key == u">"):
443
 
                pass            # xxx end-of-buffer
444
 
            elif (key == u"home" or key == u"meta <" or key == u"g"
445
 
                  or key == u"<"):
446
 
                pass            # xxx beginning-of-buffer
447
 
            elif key == u"ctrl e" or key == u"$":
448
 
                pass            # xxx move-end-of-line
449
 
            elif key == u"ctrl a" or key == u"^":
450
 
                pass            # xxx move-beginning-of-line
451
 
            elif key == u"ctrl b" or key == u"meta (" or key == u"h":
452
 
                pass            # xxx left
453
 
            elif key == u"ctrl f" or key == u"meta )" or key == u"l":
454
 
                pass            # xxx right
455
 
            elif key == u"a":
456
 
                pass            # scroll up log
457
 
            elif key == u"z":
458
 
                pass            # scroll down log
 
719
            elif key == "v":
 
720
                if self.log_level == 0:
 
721
                    self.log_level = 1
 
722
                    self.log_message("Verbose mode: Off")
 
723
                else:
 
724
                    self.log_level = 0
 
725
                    self.log_message("Verbose mode: On")
 
726
            #elif (key == "end" or key == "meta >" or key == "G"
 
727
            #      or key == ">"):
 
728
            #    pass            # xxx end-of-buffer
 
729
            #elif (key == "home" or key == "meta <" or key == "g"
 
730
            #      or key == "<"):
 
731
            #    pass            # xxx beginning-of-buffer
 
732
            #elif key == "ctrl e" or key == "$":
 
733
            #    pass            # xxx move-end-of-line
 
734
            #elif key == "ctrl a" or key == "^":
 
735
            #    pass            # xxx move-beginning-of-line
 
736
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
737
            #    pass            # xxx left
 
738
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
739
            #    pass            # xxx right
 
740
            #elif key == "a":
 
741
            #    pass            # scroll up log
 
742
            #elif key == "z":
 
743
            #    pass            # scroll down log
459
744
            elif self.topwidget.selectable():
460
745
                self.topwidget.keypress(self.size, key)
461
746
                self.refresh()
464
749
ui = UserInterface()
465
750
try:
466
751
    ui.run()
467
 
except:
 
752
except KeyboardInterrupt:
 
753
    ui.screen.stop()
 
754
except Exception as e:
 
755
    ui.log_message(str(e))
468
756
    ui.screen.stop()
469
757
    raise