/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: 2019-03-07 20:28:17 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 382.
  • Revision ID: teddy@recompile.se-20190307202817-avhha20s3pl14j6y
mandos-ctl: Refactor; move parsing of intervals into argument parsing

* mandos-ctl (MillisecondsValueArgumentMixIn.value_to_set): Assume
  that an incoming value is datetime.timedelta(), not a string.
  (add_command_line_options): Add "type=string_to_delta" to --timeout,
  --extended-timeout, --interval, --approval-delay, and
  --approval-duration.
  (TestSetTimeoutCmd, TestSetExtendedTimeoutCmd, TestSetIntervalCmd,
  TestSetApprovalDelayCmd, TestSetApprovalDurationCmd): Change
  values_to_set to be datetime.timedelta() values, and change to more
  appropriate values to test.  Also adjust values_to_get accordingly.

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 © 2009-2019 Teddy Hogeborn
 
7
# Copyright © 2009-2019 Björn Påhlsson
 
8
#
 
9
# This file is part of Mandos.
 
10
#
 
11
# Mandos is free software: you can redistribute it and/or modify it
 
12
# under the terms of the GNU General Public License as published by
 
13
# the Free Software Foundation, either version 3 of the License, or
 
14
# (at your option) any later version.
 
15
#
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
19
#     GNU General Public License for more details.
 
20
#
 
21
# You should have received a copy of the GNU General Public License
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
 
24
# Contact the authors at <mandos@recompile.se>.
 
25
#
3
26
 
4
 
from __future__ import division, absolute_import, with_statement
 
27
from __future__ import (division, absolute_import, print_function,
 
28
                        unicode_literals)
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
5
33
 
6
34
import sys
7
35
import os
8
 
import signal
9
36
 
10
37
import datetime
11
38
 
13
40
import urwid
14
41
 
15
42
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
43
from gi.repository import GLib
17
44
 
18
45
import dbus
19
46
 
20
 
import UserList
21
 
 
22
47
import locale
23
48
 
24
 
locale.setlocale(locale.LC_ALL, u'')
25
 
 
26
49
import logging
 
50
 
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
27
56
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
57
 
29
58
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
59
domain = 'se.recompile'
31
60
server_interface = domain + '.Mandos'
32
61
client_interface = domain + '.Mandos.Client'
33
 
version = "1.0.15"
34
 
 
35
 
# Always run in monochrome mode
36
 
urwid.curses_display.curses.has_colors = lambda : False
37
 
 
38
 
# Urwid doesn't support blinking, but we want it.  Since we have no
39
 
# use for underline on its own, we make underline also always blink.
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
41
 
    urwid.curses_display.curses.A_BLINK)
 
62
version = "1.8.3"
 
63
 
 
64
try:
 
65
    dbus.OBJECT_MANAGER_IFACE
 
66
except AttributeError:
 
67
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
68
 
 
69
 
 
70
def isoformat_to_datetime(iso):
 
71
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
72
    if not iso:
 
73
        return None
 
74
    d, t = iso.split("T", 1)
 
75
    year, month, day = d.split("-", 2)
 
76
    hour, minute, second = t.split(":", 2)
 
77
    second, fraction = divmod(float(second), 1)
 
78
    return datetime.datetime(int(year),
 
79
                             int(month),
 
80
                             int(day),
 
81
                             int(hour),
 
82
                             int(minute),
 
83
                             int(second),            # Whole seconds
 
84
                             int(fraction*1000000))  # Microseconds
 
85
 
42
86
 
43
87
class MandosClientPropertyCache(object):
44
88
    """This wraps a Mandos Client D-Bus proxy object, caches the
45
89
    properties and calls a hook function when any of them are
46
90
    changed.
47
91
    """
48
 
    def __init__(self, proxy_object=None, *args, **kwargs):
49
 
        self.proxy = proxy_object # Mandos Client proxy object
50
 
        
51
 
        self.properties = dict()
52
 
        self.proxy.connect_to_signal(u"PropertyChanged",
53
 
                                     self.property_changed,
54
 
                                     client_interface,
55
 
                                     byte_arrays=True)
56
 
        
57
 
        self.properties.update(
58
 
            self.proxy.GetAll(client_interface,
59
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
60
 
        super(MandosClientPropertyCache, self).__init__(
61
 
            *args, **kwargs)
62
 
    
63
 
    def property_changed(self, property=None, value=None):
64
 
        """This is called whenever we get a PropertyChanged signal
65
 
        It updates the changed property in the "properties" dict.
 
92
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
93
        self.proxy = proxy_object  # Mandos Client proxy object
 
94
        self.properties = dict() if properties is None else properties
 
95
        self.property_changed_match = (
 
96
            self.proxy.connect_to_signal("PropertiesChanged",
 
97
                                         self.properties_changed,
 
98
                                         dbus.PROPERTIES_IFACE,
 
99
                                         byte_arrays=True))
 
100
 
 
101
        if properties is None:
 
102
            self.properties.update(self.proxy.GetAll(
 
103
                client_interface,
 
104
                dbus_interface=dbus.PROPERTIES_IFACE))
 
105
 
 
106
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
107
 
 
108
    def properties_changed(self, interface, properties, invalidated):
 
109
        """This is called whenever we get a PropertiesChanged signal
 
110
        It updates the changed properties in the "properties" dict.
66
111
        """
67
112
        # Update properties dict with new value
68
 
        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()
69
118
 
70
119
 
71
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
72
121
    """A Mandos Client which is visible on the screen.
73
122
    """
74
 
    
 
123
 
75
124
    def __init__(self, server_proxy_object=None, update_hook=None,
76
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
77
126
        # Called on update
78
127
        self.update_hook = update_hook
79
128
        # Called on delete
82
131
        self.server_proxy_object = server_proxy_object
83
132
        # Logger
84
133
        self.logger = logger
85
 
        
 
134
 
 
135
        self._update_timer_callback_tag = None
 
136
 
86
137
        # The widget shown normally
87
 
        self._text_widget = urwid.Text(u"")
 
138
        self._text_widget = urwid.Text("")
88
139
        # The widget shown when we have focus
89
 
        self._focus_text_widget = urwid.Text(u"")
90
 
        super(MandosClientWidget, self).__init__(
91
 
            update_hook=update_hook, delete_hook=delete_hook,
92
 
            *args, **kwargs)
 
140
        self._focus_text_widget = urwid.Text("")
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
93
142
        self.update()
94
143
        self.opened = False
95
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
96
 
                                     self.checker_completed,
97
 
                                     client_interface,
98
 
                                     byte_arrays=True)
99
 
        self.proxy.connect_to_signal(u"CheckerStarted",
100
 
                                     self.checker_started,
101
 
                                     client_interface,
102
 
                                     byte_arrays=True)
103
 
        self.proxy.connect_to_signal(u"GotSecret",
104
 
                                     self.got_secret,
105
 
                                     client_interface,
106
 
                                     byte_arrays=True)
107
 
        self.proxy.connect_to_signal(u"NeedApproval",
108
 
                                     self.need_approval,
109
 
                                     client_interface,
110
 
                                     byte_arrays=True)
111
 
        self.proxy.connect_to_signal(u"Rejected",
112
 
                                     self.rejected,
113
 
                                     client_interface,
114
 
                                     byte_arrays=True)
115
 
    
 
144
 
 
145
        self.match_objects = (
 
146
            self.proxy.connect_to_signal("CheckerCompleted",
 
147
                                         self.checker_completed,
 
148
                                         client_interface,
 
149
                                         byte_arrays=True),
 
150
            self.proxy.connect_to_signal("CheckerStarted",
 
151
                                         self.checker_started,
 
152
                                         client_interface,
 
153
                                         byte_arrays=True),
 
154
            self.proxy.connect_to_signal("GotSecret",
 
155
                                         self.got_secret,
 
156
                                         client_interface,
 
157
                                         byte_arrays=True),
 
158
            self.proxy.connect_to_signal("NeedApproval",
 
159
                                         self.need_approval,
 
160
                                         client_interface,
 
161
                                         byte_arrays=True),
 
162
            self.proxy.connect_to_signal("Rejected",
 
163
                                         self.rejected,
 
164
                                         client_interface,
 
165
                                         byte_arrays=True))
 
166
        self.logger('Created client {}'
 
167
                    .format(self.properties["Name"]), level=0)
 
168
 
 
169
    def using_timer(self, flag):
 
170
        """Call this method with True or False when timer should be
 
171
        activated or deactivated.
 
172
        """
 
173
        if flag and self._update_timer_callback_tag is None:
 
174
            # Will update the shown timer value every second
 
175
            self._update_timer_callback_tag = (GLib.timeout_add
 
176
                                               (1000,
 
177
                                                self.update_timer))
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
179
            GLib.source_remove(self._update_timer_callback_tag)
 
180
            self._update_timer_callback_tag = None
 
181
 
116
182
    def checker_completed(self, exitstatus, condition, command):
117
183
        if exitstatus == 0:
118
 
            #self.logger(u'Checker for client %s (command "%s")'
119
 
            #            u' was successful'
120
 
            #            % (self.properties[u"name"], command))
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
 
187
            self.update()
121
188
            return
 
189
        # Checker failed
122
190
        if os.WIFEXITED(condition):
123
 
            self.logger(u'Checker for client %s (command "%s")'
124
 
                        u' failed with exit code %s'
125
 
                        % (self.properties[u"name"], command,
126
 
                           os.WEXITSTATUS(condition)))
127
 
            return
128
 
        if os.WIFSIGNALED(condition):
129
 
            self.logger(u'Checker for client %s (command "%s")'
130
 
                        u' was killed by signal %s'
131
 
                        % (self.properties[u"name"], command,
132
 
                           os.WTERMSIG(condition)))
133
 
            return
134
 
        if os.WCOREDUMP(condition):
135
 
            self.logger(u'Checker for client %s (command "%s")'
136
 
                        u' dumped core'
137
 
                        % (self.properties[u"name"], command))
138
 
        self.logger(u'Checker for client %s completed mysteriously')
139
 
    
 
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
 
140
202
    def checker_started(self, command):
141
 
        #self.logger(u'Client %s started checker "%s"'
142
 
        #            % (self.properties[u"name"], unicode(command)))
143
 
        pass
144
 
    
 
203
        """Server signals that a checker started."""
 
204
        self.logger('Client {} started checker "{}"'
 
205
                    .format(self.properties["Name"],
 
206
                            command), level=0)
 
207
 
145
208
    def got_secret(self):
146
 
        self.logger(u'Client %s received its secret'
147
 
                    % self.properties[u"name"])
148
 
    
 
209
        self.logger('Client {} received its secret'
 
210
                    .format(self.properties["Name"]))
 
211
 
149
212
    def need_approval(self, timeout, default):
150
213
        if not default:
151
 
            message = u'Client %s needs approval within %s seconds'
 
214
            message = 'Client {} needs approval within {} seconds'
152
215
        else:
153
 
            message = u'Client %s will get its secret in %s seconds'
154
 
        self.logger(message
155
 
                    % (self.properties[u"name"], timeout/1000))
156
 
    
 
216
            message = 'Client {} will get its secret in {} seconds'
 
217
        self.logger(message.format(self.properties["Name"],
 
218
                                   timeout/1000))
 
219
 
157
220
    def rejected(self, reason):
158
 
        self.logger(u'Client %s was rejected; reason: %s'
159
 
                    % (self.properties[u"name"], reason))
160
 
    
 
221
        self.logger('Client {} was rejected; reason: {}'
 
222
                    .format(self.properties["Name"], reason))
 
223
 
161
224
    def selectable(self):
162
225
        """Make this a "selectable" widget.
163
226
        This overrides the method from urwid.FlowWidget."""
164
227
        return True
165
 
    
166
 
    def rows(self, (maxcol,), focus=False):
 
228
 
 
229
    def rows(self, maxcolrow, focus=False):
167
230
        """How many rows this widget will occupy might depend on
168
231
        whether we have focus or not.
169
232
        This overrides the method from urwid.FlowWidget"""
170
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
171
 
    
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
234
 
172
235
    def current_widget(self, focus=False):
173
236
        if focus or self.opened:
174
237
            return self._focus_widget
175
238
        return self._widget
176
 
    
 
239
 
177
240
    def update(self):
178
241
        "Called when what is visible on the screen should be updated."
179
242
        # How to add standout mode to a style
180
 
        with_standout = { u"normal": u"standout",
181
 
                          u"bold": u"bold-standout",
182
 
                          u"underline-blink":
183
 
                              u"underline-blink-standout",
184
 
                          u"bold-underline-blink":
185
 
                              u"bold-underline-blink-standout",
186
 
                          }
187
 
        
 
243
        with_standout = {"normal": "standout",
 
244
                         "bold": "bold-standout",
 
245
                         "underline-blink":
 
246
                         "underline-blink-standout",
 
247
                         "bold-underline-blink":
 
248
                         "bold-underline-blink-standout",
 
249
                         }
 
250
 
188
251
        # Rebuild focus and non-focus widgets using current properties
189
 
        self._text = (u'%(name)s: %(enabled)s'
190
 
                      % { u"name": self.properties[u"name"],
191
 
                          u"enabled":
192
 
                              (u"enabled"
193
 
                               if self.properties[u"enabled"]
194
 
                               else u"DISABLED")})
 
252
 
 
253
        # Base part of a client. Name!
 
254
        base = '{name}: '.format(name=self.properties["Name"])
 
255
        if not self.properties["Enabled"]:
 
256
            message = "DISABLED"
 
257
            self.using_timer(False)
 
258
        elif self.properties["ApprovalPending"]:
 
259
            timeout = datetime.timedelta(
 
260
                milliseconds=self.properties["ApprovalDelay"])
 
261
            last_approval_request = isoformat_to_datetime(
 
262
                self.properties["LastApprovalRequest"])
 
263
            if last_approval_request is not None:
 
264
                timer = max(timeout - (datetime.datetime.utcnow()
 
265
                                       - last_approval_request),
 
266
                            datetime.timedelta())
 
267
            else:
 
268
                timer = datetime.timedelta()
 
269
            if self.properties["ApprovedByDefault"]:
 
270
                message = "Approval in {}. (d)eny?"
 
271
            else:
 
272
                message = "Denial in {}. (a)pprove?"
 
273
            message = message.format(str(timer).rsplit(".", 1)[0])
 
274
            self.using_timer(True)
 
275
        elif self.properties["LastCheckerStatus"] != 0:
 
276
            # When checker has failed, show timer until client expires
 
277
            expires = self.properties["Expires"]
 
278
            if expires == "":
 
279
                timer = datetime.timedelta(0)
 
280
            else:
 
281
                expires = (datetime.datetime.strptime
 
282
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
283
                timer = max(expires - datetime.datetime.utcnow(),
 
284
                            datetime.timedelta())
 
285
            message = ('A checker has failed! Time until client'
 
286
                       ' gets disabled: {}'
 
287
                       .format(str(timer).rsplit(".", 1)[0]))
 
288
            self.using_timer(True)
 
289
        else:
 
290
            message = "enabled"
 
291
            self.using_timer(False)
 
292
        self._text = "{}{}".format(base, message)
 
293
 
195
294
        if not urwid.supports_unicode():
196
295
            self._text = self._text.encode("ascii", "replace")
197
 
        textlist = [(u"normal", self._text)]
 
296
        textlist = [("normal", self._text)]
198
297
        self._text_widget.set_text(textlist)
199
298
        self._focus_text_widget.set_text([(with_standout[text[0]],
200
299
                                           text[1])
207
306
        # Run update hook, if any
208
307
        if self.update_hook is not None:
209
308
            self.update_hook()
210
 
    
211
 
    def delete(self):
 
309
 
 
310
    def update_timer(self):
 
311
        """called by GLib. Will indefinitely loop until
 
312
        GLib.source_remove() on tag is called
 
313
        """
 
314
        self.update()
 
315
        return True             # Keep calling this
 
316
 
 
317
    def delete(self, **kwargs):
 
318
        if self._update_timer_callback_tag is not None:
 
319
            GLib.source_remove(self._update_timer_callback_tag)
 
320
            self._update_timer_callback_tag = None
 
321
        for match in self.match_objects:
 
322
            match.remove()
 
323
        self.match_objects = ()
212
324
        if self.delete_hook is not None:
213
325
            self.delete_hook(self)
214
 
    
215
 
    def render(self, (maxcol,), focus=False):
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
 
327
 
 
328
    def render(self, maxcolrow, focus=False):
216
329
        """Render differently if we have focus.
217
330
        This overrides the method from urwid.FlowWidget"""
218
 
        return self.current_widget(focus).render((maxcol,),
 
331
        return self.current_widget(focus).render(maxcolrow,
219
332
                                                 focus=focus)
220
 
    
221
 
    def keypress(self, (maxcol,), key):
 
333
 
 
334
    def keypress(self, maxcolrow, key):
222
335
        """Handle keys.
223
336
        This overrides the method from urwid.FlowWidget"""
224
 
        if key == u"e" or key == u"+":
225
 
            self.proxy.Enable()
226
 
        elif key == u"d" or key == u"-":
227
 
            self.proxy.Disable()
228
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
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":
229
354
            self.server_proxy_object.RemoveClient(self.proxy
230
 
                                                  .object_path)
231
 
        elif key == u"s":
232
 
            self.proxy.StartChecker()
233
 
        elif key == u"S":
234
 
            self.proxy.StopChecker()
235
 
        elif key == u"C":
236
 
            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)
237
368
        # xxx
238
 
#         elif key == u"p" or key == "=":
 
369
#         elif key == "p" or key == "=":
239
370
#             self.proxy.pause()
240
 
#         elif key == u"u" or key == ":":
 
371
#         elif key == "u" or key == ":":
241
372
#             self.proxy.unpause()
242
 
#         elif key == u"RET":
 
373
#         elif key == "RET":
243
374
#             self.open()
244
 
        elif key == u"+":
245
 
            self.proxy.Approve(True)
246
 
        elif key == u"-":
247
 
            self.proxy.Approve(False)
248
375
        else:
249
376
            return key
250
 
    
251
 
    def property_changed(self, property=None, value=None,
252
 
                         *args, **kwargs):
253
 
        """Call self.update() if old value is not new value.
 
377
 
 
378
    def properties_changed(self, interface, properties, invalidated):
 
379
        """Call self.update() if any properties changed.
254
380
        This overrides the method from MandosClientPropertyCache"""
255
 
        property_name = unicode(property)
256
 
        old_value = self.properties.get(property_name)
257
 
        super(MandosClientWidget, self).property_changed(
258
 
            property=property, value=value, *args, **kwargs)
259
 
        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):
260
387
            self.update()
261
388
 
262
389
 
265
392
    "down" key presses, thus not allowing any containing widgets to
266
393
    use them as an excuse to shift focus away from this widget.
267
394
    """
268
 
    def keypress(self, (maxcol, maxrow), key):
269
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
270
 
        if ret in (u"up", u"down"):
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = (super(ConstrainedListBox, self)
 
397
               .keypress(*args, **kwargs))
 
398
        if ret in ("up", "down"):
271
399
            return
272
400
        return ret
273
401
 
276
404
    """This is the entire user interface - the whole screen
277
405
    with boxes, lists of client widgets, etc.
278
406
    """
279
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
280
408
        DBusGMainLoop(set_as_default=True)
281
 
        
 
409
 
282
410
        self.screen = urwid.curses_display.Screen()
283
 
        
 
411
 
284
412
        self.screen.register_palette((
285
 
                (u"normal",
286
 
                 u"default", u"default", None),
287
 
                (u"bold",
288
 
                 u"default", u"default", u"bold"),
289
 
                (u"underline-blink",
290
 
                 u"default", u"default", u"underline"),
291
 
                (u"standout",
292
 
                 u"default", u"default", u"standout"),
293
 
                (u"bold-underline-blink",
294
 
                 u"default", u"default", (u"bold", u"underline")),
295
 
                (u"bold-standout",
296
 
                 u"default", u"default", (u"bold", u"standout")),
297
 
                (u"underline-blink-standout",
298
 
                 u"default", u"default", (u"underline", u"standout")),
299
 
                (u"bold-underline-blink-standout",
300
 
                 u"default", u"default", (u"bold", u"underline",
301
 
                                          u"standout")),
 
413
                ("normal",
 
414
                 "default", "default", None),
 
415
                ("bold",
 
416
                 "bold", "default", "bold"),
 
417
                ("underline-blink",
 
418
                 "underline,blink", "default", "underline,blink"),
 
419
                ("standout",
 
420
                 "standout", "default", "standout"),
 
421
                ("bold-underline-blink",
 
422
                 "bold,underline,blink", "default",
 
423
                 "bold,underline,blink"),
 
424
                ("bold-standout",
 
425
                 "bold,standout", "default", "bold,standout"),
 
426
                ("underline-blink-standout",
 
427
                 "underline,blink,standout", "default",
 
428
                 "underline,blink,standout"),
 
429
                ("bold-underline-blink-standout",
 
430
                 "bold,underline,blink,standout", "default",
 
431
                 "bold,underline,blink,standout"),
302
432
                ))
303
 
        
 
433
 
304
434
        if urwid.supports_unicode():
305
 
            self.divider = u"─" # \u2500
306
 
            #self.divider = u"━" # \u2501
 
435
            self.divider = "─"  # \u2500
307
436
        else:
308
 
            #self.divider = u"-" # \u002d
309
 
            self.divider = u"_" # \u005f
310
 
        
 
437
            self.divider = "_"  # \u005f
 
438
 
311
439
        self.screen.start()
312
 
        
 
440
 
313
441
        self.size = self.screen.get_cols_rows()
314
 
        
 
442
 
315
443
        self.clients = urwid.SimpleListWalker([])
316
444
        self.clients_dict = {}
317
 
        
 
445
 
318
446
        # We will add Text widgets to this list
319
 
        self.log = []
 
447
        self.log = urwid.SimpleListWalker([])
320
448
        self.max_log_length = max_log_length
321
 
        
 
449
 
 
450
        self.log_level = log_level
 
451
 
322
452
        # We keep a reference to the log widget so we can remove it
323
453
        # from the ListWalker without it getting destroyed
324
454
        self.logbox = ConstrainedListBox(self.log)
325
 
        
 
455
 
326
456
        # This keeps track of whether self.uilist currently has
327
457
        # self.logbox in it or not
328
458
        self.log_visible = True
329
 
        self.log_wrap = u"any"
330
 
        
 
459
        self.log_wrap = "any"
 
460
 
331
461
        self.rebuild()
332
 
        self.log_message_raw((u"bold",
333
 
                              u"Mandos Monitor version " + version))
334
 
        self.log_message_raw((u"bold",
335
 
                              u"q: Quit  ?: Help"))
336
 
        
 
462
        self.log_message_raw(("bold",
 
463
                              "Mandos Monitor version " + version))
 
464
        self.log_message_raw(("bold",
 
465
                              "q: Quit  ?: Help"))
 
466
 
337
467
        self.busname = domain + '.Mandos'
338
 
        self.main_loop = gobject.MainLoop()
339
 
        self.bus = dbus.SystemBus()
340
 
        mandos_dbus_objc = self.bus.get_object(
341
 
            self.busname, u"/", follow_name_owner_changes=True)
342
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
343
 
                                          dbus_interface
344
 
                                          = server_interface)
345
 
        try:
346
 
            mandos_clients = (self.mandos_serv
347
 
                              .GetAllClientsWithProperties())
348
 
        except dbus.exceptions.DBusException:
349
 
            mandos_clients = dbus.Dictionary()
350
 
        
351
 
        (self.mandos_serv
352
 
         .connect_to_signal(u"ClientRemoved",
353
 
                            self.find_and_remove_client,
354
 
                            dbus_interface=server_interface,
355
 
                            byte_arrays=True))
356
 
        (self.mandos_serv
357
 
         .connect_to_signal(u"ClientAdded",
358
 
                            self.add_new_client,
359
 
                            dbus_interface=server_interface,
360
 
                            byte_arrays=True))
361
 
        (self.mandos_serv
362
 
         .connect_to_signal(u"ClientNotFound",
363
 
                            self.client_not_found,
364
 
                            dbus_interface=server_interface,
365
 
                            byte_arrays=True))
366
 
        for path, client in mandos_clients.iteritems():
367
 
            client_proxy_object = self.bus.get_object(self.busname,
368
 
                                                      path)
369
 
            self.add_client(MandosClientWidget(server_proxy_object
370
 
                                               =self.mandos_serv,
371
 
                                               proxy_object
372
 
                                               =client_proxy_object,
373
 
                                               properties=client,
374
 
                                               update_hook
375
 
                                               =self.refresh,
376
 
                                               delete_hook
377
 
                                               =self.remove_client,
378
 
                                               logger
379
 
                                               =self.log_message),
380
 
                            path=path)
381
 
    
 
468
        self.main_loop = GLib.MainLoop()
 
469
 
382
470
    def client_not_found(self, fingerprint, address):
383
 
        self.log_message((u"Client with address %s and fingerprint %s"
384
 
                          u" could not be found" % (address,
385
 
                                                    fingerprint)))
386
 
    
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
 
474
 
387
475
    def rebuild(self):
388
476
        """This rebuilds the User Interface.
389
477
        Call this when the widget layout needs to change"""
390
478
        self.uilist = []
391
 
        #self.uilist.append(urwid.ListBox(self.clients))
392
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
393
 
                                       #header=urwid.Divider(),
 
479
        # self.uilist.append(urwid.ListBox(self.clients))
 
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
481
                                                          clients),
 
482
                                       # header=urwid.Divider(),
394
483
                                       header=None,
395
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
484
                                       footer=urwid.Divider(
 
485
                                           div_char=self.divider)))
396
486
        if self.log_visible:
397
487
            self.uilist.append(self.logbox)
398
 
            pass
399
488
        self.topwidget = urwid.Pile(self.uilist)
400
 
    
401
 
    def log_message(self, message):
 
489
 
 
490
    def log_message(self, message, level=1):
 
491
        """Log message formatted with timestamp"""
 
492
        if level < self.log_level:
 
493
            return
402
494
        timestamp = datetime.datetime.now().isoformat()
403
 
        self.log_message_raw(timestamp + u": " + message)
404
 
    
405
 
    def log_message_raw(self, markup):
 
495
        self.log_message_raw("{}: {}".format(timestamp, message),
 
496
                             level=level)
 
497
 
 
498
    def log_message_raw(self, markup, level=1):
406
499
        """Add a log message to the log buffer."""
 
500
        if level < self.log_level:
 
501
            return
407
502
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
408
 
        if (self.max_log_length
409
 
            and len(self.log) > self.max_log_length):
410
 
            del self.log[0:len(self.log)-self.max_log_length-1]
411
 
        self.logbox.set_focus(len(self.logbox.body.contents),
412
 
                              coming_from=u"above")
 
503
        if self.max_log_length:
 
504
            if len(self.log) > self.max_log_length:
 
505
                del self.log[0:len(self.log)-self.max_log_length-1]
 
506
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
507
                              coming_from="above")
413
508
        self.refresh()
414
 
    
 
509
 
415
510
    def toggle_log_display(self):
416
511
        """Toggle visibility of the log buffer."""
417
512
        self.log_visible = not self.log_visible
418
513
        self.rebuild()
419
 
        self.log_message(u"Log visibility changed to: "
420
 
                         + unicode(self.log_visible))
421
 
    
 
514
        self.log_message("Log visibility changed to: {}"
 
515
                         .format(self.log_visible), level=0)
 
516
 
422
517
    def change_log_display(self):
423
518
        """Change type of log display.
424
519
        Currently, this toggles wrapping of text lines."""
425
 
        if self.log_wrap == u"clip":
426
 
            self.log_wrap = u"any"
 
520
        if self.log_wrap == "clip":
 
521
            self.log_wrap = "any"
427
522
        else:
428
 
            self.log_wrap = u"clip"
 
523
            self.log_wrap = "clip"
429
524
        for textwidget in self.log:
430
525
            textwidget.set_wrap_mode(self.log_wrap)
431
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
432
 
    
433
 
    def find_and_remove_client(self, path, name):
434
 
        """Find an client from its object path and remove it.
435
 
        
436
 
        This is connected to the ClientRemoved signal from the
 
526
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
527
                         level=0)
 
528
 
 
529
    def find_and_remove_client(self, path, interfaces):
 
530
        """Find a client by its object path and remove it.
 
531
 
 
532
        This is connected to the InterfacesRemoved signal from the
437
533
        Mandos server object."""
 
534
        if client_interface not in interfaces:
 
535
            # Not a Mandos client object; ignore
 
536
            return
438
537
        try:
439
538
            client = self.clients_dict[path]
440
539
        except KeyError:
441
540
            # not found?
442
 
            return
443
 
        self.remove_client(client, path)
444
 
    
445
 
    def add_new_client(self, path):
 
541
            self.log_message("Unknown client {!r} removed"
 
542
                             .format(path))
 
543
            return
 
544
        client.delete()
 
545
 
 
546
    def add_new_client(self, path, ifs_and_props):
 
547
        """Find a client by its object path and remove it.
 
548
 
 
549
        This is connected to the InterfacesAdded signal from the
 
550
        Mandos server object.
 
551
        """
 
552
        if client_interface not in ifs_and_props:
 
553
            # Not a Mandos client object; ignore
 
554
            return
446
555
        client_proxy_object = self.bus.get_object(self.busname, path)
447
 
        self.add_client(MandosClientWidget(server_proxy_object
448
 
                                           =self.mandos_serv,
449
 
                                           proxy_object
450
 
                                           =client_proxy_object,
451
 
                                           update_hook
452
 
                                           =self.refresh,
453
 
                                           delete_hook
454
 
                                           =self.remove_client,
455
 
                                           logger
456
 
                                           =self.log_message),
 
556
        self.add_client(MandosClientWidget(
 
557
            server_proxy_object=self.mandos_serv,
 
558
            proxy_object=client_proxy_object,
 
559
            update_hook=self.refresh,
 
560
            delete_hook=self.remove_client,
 
561
            logger=self.log_message,
 
562
            properties=dict(ifs_and_props[client_interface])),
457
563
                        path=path)
458
 
    
 
564
 
459
565
    def add_client(self, client, path=None):
460
566
        self.clients.append(client)
461
567
        if path is None:
462
568
            path = client.proxy.object_path
463
569
        self.clients_dict[path] = client
464
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
570
        self.clients.sort(key=lambda c: c.properties["Name"])
465
571
        self.refresh()
466
 
    
 
572
 
467
573
    def remove_client(self, client, path=None):
468
574
        self.clients.remove(client)
469
575
        if path is None:
470
576
            path = client.proxy.object_path
471
577
        del self.clients_dict[path]
472
 
        if not self.clients_dict:
473
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
474
 
            # is completely emptied, we need to recreate it.
475
 
            self.clients = urwid.SimpleListWalker([])
476
 
            self.rebuild()
477
578
        self.refresh()
478
 
    
 
579
 
479
580
    def refresh(self):
480
581
        """Redraw the screen"""
481
582
        canvas = self.topwidget.render(self.size, focus=True)
482
583
        self.screen.draw_screen(self.size, canvas)
483
 
    
 
584
 
484
585
    def run(self):
485
586
        """Start the main loop and exit when it's done."""
 
587
        self.bus = dbus.SystemBus()
 
588
        mandos_dbus_objc = self.bus.get_object(
 
589
            self.busname, "/", follow_name_owner_changes=True)
 
590
        self.mandos_serv = dbus.Interface(
 
591
            mandos_dbus_objc, dbus_interface=server_interface)
 
592
        try:
 
593
            mandos_clients = (self.mandos_serv
 
594
                              .GetAllClientsWithProperties())
 
595
            if not mandos_clients:
 
596
                self.log_message_raw(("bold",
 
597
                                      "Note: Server has no clients."))
 
598
        except dbus.exceptions.DBusException:
 
599
            self.log_message_raw(("bold",
 
600
                                  "Note: No Mandos server running."))
 
601
            mandos_clients = dbus.Dictionary()
 
602
 
 
603
        (self.mandos_serv
 
604
         .connect_to_signal("InterfacesRemoved",
 
605
                            self.find_and_remove_client,
 
606
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
607
                            byte_arrays=True))
 
608
        (self.mandos_serv
 
609
         .connect_to_signal("InterfacesAdded",
 
610
                            self.add_new_client,
 
611
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
612
                            byte_arrays=True))
 
613
        (self.mandos_serv
 
614
         .connect_to_signal("ClientNotFound",
 
615
                            self.client_not_found,
 
616
                            dbus_interface=server_interface,
 
617
                            byte_arrays=True))
 
618
        for path, client in mandos_clients.items():
 
619
            client_proxy_object = self.bus.get_object(self.busname,
 
620
                                                      path)
 
621
            self.add_client(MandosClientWidget(
 
622
                server_proxy_object=self.mandos_serv,
 
623
                proxy_object=client_proxy_object,
 
624
                properties=client,
 
625
                update_hook=self.refresh,
 
626
                delete_hook=self.remove_client,
 
627
                logger=self.log_message),
 
628
                            path=path)
 
629
 
486
630
        self.refresh()
487
 
        self._input_callback_tag = (gobject.io_add_watch
 
631
        self._input_callback_tag = (GLib.io_add_watch
488
632
                                    (sys.stdin.fileno(),
489
 
                                     gobject.IO_IN,
 
633
                                     GLib.IO_IN,
490
634
                                     self.process_input))
491
635
        self.main_loop.run()
492
636
        # Main loop has finished, we should close everything now
493
 
        gobject.source_remove(self._input_callback_tag)
 
637
        GLib.source_remove(self._input_callback_tag)
494
638
        self.screen.stop()
495
 
    
 
639
 
496
640
    def stop(self):
497
641
        self.main_loop.quit()
498
 
    
 
642
 
499
643
    def process_input(self, source, condition):
500
644
        keys = self.screen.get_input()
501
 
        translations = { u"ctrl n": u"down",      # Emacs
502
 
                         u"ctrl p": u"up",        # Emacs
503
 
                         u"ctrl v": u"page down", # Emacs
504
 
                         u"meta v": u"page up",   # Emacs
505
 
                         u" ": u"page down",      # less
506
 
                         u"f": u"page down",      # less
507
 
                         u"b": u"page up",        # less
508
 
                         u"j": u"down",           # vi
509
 
                         u"k": u"up",             # vi
510
 
                         }
 
645
        translations = {"ctrl n": "down",       # Emacs
 
646
                        "ctrl p": "up",         # Emacs
 
647
                        "ctrl v": "page down",  # Emacs
 
648
                        "meta v": "page up",    # Emacs
 
649
                        " ": "page down",       # less
 
650
                        "f": "page down",       # less
 
651
                        "b": "page up",         # less
 
652
                        "j": "down",            # vi
 
653
                        "k": "up",              # vi
 
654
                        }
511
655
        for key in keys:
512
656
            try:
513
657
                key = translations[key]
514
658
            except KeyError:    # :-)
515
659
                pass
516
 
            
517
 
            if key == u"q" or key == u"Q":
 
660
 
 
661
            if key == "q" or key == "Q":
518
662
                self.stop()
519
663
                break
520
 
            elif key == u"window resize":
 
664
            elif key == "window resize":
521
665
                self.size = self.screen.get_cols_rows()
522
666
                self.refresh()
523
 
            elif key == u"\f":  # Ctrl-L
 
667
            elif key == "ctrl l":
 
668
                self.screen.clear()
524
669
                self.refresh()
525
 
            elif key == u"l" or key == u"D":
 
670
            elif key == "l" or key == "D":
526
671
                self.toggle_log_display()
527
672
                self.refresh()
528
 
            elif key == u"w" or key == u"i":
 
673
            elif key == "w" or key == "i":
529
674
                self.change_log_display()
530
675
                self.refresh()
531
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
676
            elif key == "?" or key == "f1" or key == "esc":
532
677
                if not self.log_visible:
533
678
                    self.log_visible = True
534
679
                    self.rebuild()
535
 
                self.log_message_raw((u"bold",
536
 
                                      u"  ".
537
 
                                      join((u"q: Quit",
538
 
                                            u"?: Help",
539
 
                                            u"l: Log window toggle",
540
 
                                            u"TAB: Switch window",
541
 
                                            u"w: Wrap (log)"))))
542
 
                self.log_message_raw((u"bold",
543
 
                                      u"  "
544
 
                                      .join((u"Clients:",
545
 
                                             u"e: Enable",
546
 
                                             u"d: Disable",
547
 
                                             u"r: Remove",
548
 
                                             u"s: Start new checker",
549
 
                                             u"S: Stop checker",
550
 
                                             u"C: Checker OK"))))
 
680
                self.log_message_raw(("bold",
 
681
                                      "  ".
 
682
                                      join(("q: Quit",
 
683
                                            "?: Help",
 
684
                                            "l: Log window toggle",
 
685
                                            "TAB: Switch window",
 
686
                                            "w: Wrap (log lines)",
 
687
                                            "v: Toggle verbose log",
 
688
                                            ))))
 
689
                self.log_message_raw(("bold",
 
690
                                      "  "
 
691
                                      .join(("Clients:",
 
692
                                             "+: Enable",
 
693
                                             "-: Disable",
 
694
                                             "R: Remove",
 
695
                                             "s: Start new checker",
 
696
                                             "S: Stop checker",
 
697
                                             "C: Checker OK",
 
698
                                             "a: Approve",
 
699
                                             "d: Deny"))))
551
700
                self.refresh()
552
 
            elif key == u"tab":
 
701
            elif key == "tab":
553
702
                if self.topwidget.get_focus() is self.logbox:
554
703
                    self.topwidget.set_focus(0)
555
704
                else:
556
705
                    self.topwidget.set_focus(self.logbox)
557
706
                self.refresh()
558
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
559
 
            #      or key == u">"):
560
 
            #    pass            # xxx end-of-buffer
561
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
562
 
            #      or key == u"<"):
563
 
            #    pass            # xxx beginning-of-buffer
564
 
            #elif key == u"ctrl e" or key == u"$":
565
 
            #    pass            # xxx move-end-of-line
566
 
            #elif key == u"ctrl a" or key == u"^":
567
 
            #    pass            # xxx move-beginning-of-line
568
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
569
 
            #    pass            # xxx left
570
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
571
 
            #    pass            # xxx right
572
 
            #elif key == u"a":
573
 
            #    pass            # scroll up log
574
 
            #elif key == u"z":
575
 
            #    pass            # scroll down log
 
707
            elif key == "v":
 
708
                if self.log_level == 0:
 
709
                    self.log_level = 1
 
710
                    self.log_message("Verbose mode: Off")
 
711
                else:
 
712
                    self.log_level = 0
 
713
                    self.log_message("Verbose mode: On")
 
714
            # elif (key == "end" or key == "meta >" or key == "G"
 
715
            #       or key == ">"):
 
716
            #     pass            # xxx end-of-buffer
 
717
            # elif (key == "home" or key == "meta <" or key == "g"
 
718
            #       or key == "<"):
 
719
            #     pass            # xxx beginning-of-buffer
 
720
            # elif key == "ctrl e" or key == "$":
 
721
            #     pass            # xxx move-end-of-line
 
722
            # elif key == "ctrl a" or key == "^":
 
723
            #     pass            # xxx move-beginning-of-line
 
724
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
725
            #     pass            # xxx left
 
726
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
727
            #     pass            # xxx right
 
728
            # elif key == "a":
 
729
            #     pass            # scroll up log
 
730
            # elif key == "z":
 
731
            #     pass            # scroll down log
576
732
            elif self.topwidget.selectable():
577
733
                self.topwidget.keypress(self.size, key)
578
734
                self.refresh()
579
735
        return True
580
736
 
 
737
 
581
738
ui = UserInterface()
582
739
try:
583
740
    ui.run()
584
 
except Exception, e:
585
 
    ui.log_message(unicode(e))
 
741
except KeyboardInterrupt:
 
742
    ui.screen.stop()
 
743
except Exception as e:
 
744
    ui.log_message(str(e))
586
745
    ui.screen.stop()
587
746
    raise