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  • Committer: Teddy Hogeborn
  • Date: 2012-01-15 20:27:28 UTC
  • Revision ID: teddy@recompile.se-20120115202728-185929ww2r84s8xg
* DBUS-API (se.recompile.Mandos.Client.LastCheckerStatus): New
                                                           property.
* mandos (Client.last_checker_status): Use -2 instead of None to match
                                       D-Bus property.  All users
                                       changed.
  (Client.checked_ok): Remove "timeout" argument and call
                       "self.bump_timeout()" instead.
  (Client.bump_timeout): New; separated out from "checked_ok".
  (ClientDBus.last_checker_status): Hook to a D-Bus property.
  (ClientDBus.LastCheckerStatus_dbus_property): New D-Bus property.
  (ClientHandler.handle): Call client.bump_timeout() instead of
                          client.checked_ok().

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mandos-monitor
1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 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
 
5
# 
 
6
# Copyright © 2009-2012 Teddy Hogeborn
 
7
# Copyright © 2009-2012 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
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
# 
21
19
# 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
 
#
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
21
# 
24
22
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
23
# 
26
24
 
27
25
from __future__ import (division, absolute_import, print_function,
28
26
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
33
27
 
34
28
import sys
35
29
import os
36
 
import warnings
 
30
import signal
 
31
 
37
32
import datetime
38
 
import locale
39
 
import logging
40
33
 
41
34
import urwid.curses_display
42
35
import urwid
43
36
 
44
37
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
38
import gobject
46
39
 
47
40
import dbus
48
41
 
49
 
if sys.version_info.major == 2:
50
 
    str = unicode
51
 
 
52
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
53
 
logging.basicConfig(level="NOTSET", # Show all messages
54
 
                    format="%(message)s") # Show basic log messages
55
 
 
56
 
logging.captureWarnings(True)   # Show warnings via the logging system
57
 
 
58
 
locale.setlocale(locale.LC_ALL, "")
59
 
 
60
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
42
import UserList
 
43
 
 
44
import locale
 
45
 
 
46
locale.setlocale(locale.LC_ALL, '')
 
47
 
 
48
import logging
 
49
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
61
50
 
62
51
# Some useful constants
63
 
domain = "se.recompile"
64
 
server_interface = domain + ".Mandos"
65
 
client_interface = domain + ".Mandos.Client"
66
 
version = "1.8.9"
67
 
 
68
 
try:
69
 
    dbus.OBJECT_MANAGER_IFACE
70
 
except AttributeError:
71
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
72
 
 
 
52
domain = 'se.recompile'
 
53
server_interface = domain + '.Mandos'
 
54
client_interface = domain + '.Mandos.Client'
 
55
version = "1.5.2"
 
56
 
 
57
# Always run in monochrome mode
 
58
urwid.curses_display.curses.has_colors = lambda : False
 
59
 
 
60
# Urwid doesn't support blinking, but we want it.  Since we have no
 
61
# use for underline on its own, we make underline also always blink.
 
62
urwid.curses_display.curses.A_UNDERLINE |= (
 
63
    urwid.curses_display.curses.A_BLINK)
73
64
 
74
65
def isoformat_to_datetime(iso):
75
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
84
75
                             int(day),
85
76
                             int(hour),
86
77
                             int(minute),
87
 
                             int(second),            # Whole seconds
88
 
                             int(fraction*1000000))  # Microseconds
89
 
 
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
90
80
 
91
81
class MandosClientPropertyCache(object):
92
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
93
83
    properties and calls a hook function when any of them are
94
84
    changed.
95
85
    """
96
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
97
 
        self.proxy = proxy_object  # Mandos Client proxy object
98
 
        self.properties = dict() if properties is None else properties
 
86
    def __init__(self, proxy_object=None, *args, **kwargs):
 
87
        self.proxy = proxy_object # Mandos Client proxy object
 
88
        
 
89
        self.properties = dict()
99
90
        self.property_changed_match = (
100
 
            self.proxy.connect_to_signal("PropertiesChanged",
101
 
                                         self.properties_changed,
102
 
                                         dbus.PROPERTIES_IFACE,
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
92
                                         self.property_changed,
 
93
                                         client_interface,
103
94
                                         byte_arrays=True))
104
 
 
105
 
        if properties is None:
106
 
            self.properties.update(self.proxy.GetAll(
107
 
                client_interface,
108
 
                dbus_interface=dbus.PROPERTIES_IFACE))
109
 
 
110
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
111
 
 
112
 
    def properties_changed(self, interface, properties, invalidated):
113
 
        """This is called whenever we get a PropertiesChanged signal
114
 
        It updates the changed properties in the "properties" dict.
 
95
        
 
96
        self.properties.update(
 
97
            self.proxy.GetAll(client_interface,
 
98
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
99
 
 
100
        #XXX This breaks good super behaviour
 
101
#        super(MandosClientPropertyCache, self).__init__(
 
102
#            *args, **kwargs)
 
103
    
 
104
    def property_changed(self, property=None, value=None):
 
105
        """This is called whenever we get a PropertyChanged signal
 
106
        It updates the changed property in the "properties" dict.
115
107
        """
116
108
        # Update properties dict with new value
117
 
        if interface == client_interface:
118
 
            self.properties.update(properties)
119
 
 
120
 
    def delete(self):
 
109
        self.properties[property] = value
 
110
    
 
111
    def delete(self, *args, **kwargs):
121
112
        self.property_changed_match.remove()
 
113
        super(MandosClientPropertyCache, self).__init__(
 
114
            *args, **kwargs)
122
115
 
123
116
 
124
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
125
118
    """A Mandos Client which is visible on the screen.
126
119
    """
127
 
 
 
120
    
128
121
    def __init__(self, server_proxy_object=None, update_hook=None,
129
 
                 delete_hook=None, **kwargs):
 
122
                 delete_hook=None, logger=None, *args, **kwargs):
130
123
        # Called on update
131
124
        self.update_hook = update_hook
132
125
        # Called on delete
133
126
        self.delete_hook = delete_hook
134
127
        # Mandos Server proxy object
135
128
        self.server_proxy_object = server_proxy_object
136
 
 
 
129
        # Logger
 
130
        self.logger = logger
 
131
        
137
132
        self._update_timer_callback_tag = None
138
 
 
 
133
        self._update_timer_callback_lock = 0
 
134
        self.last_checker_failed = False
 
135
        
139
136
        # The widget shown normally
140
137
        self._text_widget = urwid.Text("")
141
138
        # The widget shown when we have focus
142
139
        self._focus_text_widget = urwid.Text("")
143
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
140
        super(MandosClientWidget, self).__init__(
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
142
            *args, **kwargs)
144
143
        self.update()
145
144
        self.opened = False
146
 
 
 
145
        
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
147
                                                ["LastCheckedOK"])
 
148
        if last_checked_ok is None:
 
149
            self.last_checker_failed = True
 
150
        else:
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
152
                                         - last_checked_ok)
 
153
                                        > datetime.timedelta
 
154
                                        (milliseconds=
 
155
                                         self.properties
 
156
                                         ["Interval"]))
 
157
        
 
158
        if self.last_checker_failed:
 
159
            self.using_timer(True)
 
160
        
 
161
        if self.need_approval:
 
162
            self.using_timer(True)
 
163
        
147
164
        self.match_objects = (
148
165
            self.proxy.connect_to_signal("CheckerCompleted",
149
166
                                         self.checker_completed,
165
182
                                         self.rejected,
166
183
                                         client_interface,
167
184
                                         byte_arrays=True))
168
 
        log.debug("Created client %s", self.properties["Name"])
169
 
 
 
185
        #self.logger('Created client %s' % (self.properties["Name"]))
 
186
    
 
187
    def property_changed(self, property=None, value=None):
 
188
        super(self, MandosClientWidget).property_changed(property,
 
189
                                                         value)
 
190
        if property == "ApprovalPending":
 
191
            using_timer(bool(value))
 
192
        
170
193
    def using_timer(self, flag):
171
194
        """Call this method with True or False when timer should be
172
195
        activated or deactivated.
173
196
        """
174
 
        if flag and self._update_timer_callback_tag is None:
 
197
        old = self._update_timer_callback_lock
 
198
        if flag:
 
199
            self._update_timer_callback_lock += 1
 
200
        else:
 
201
            self._update_timer_callback_lock -= 1
 
202
        if old == 0 and self._update_timer_callback_lock:
175
203
            # Will update the shown timer value every second
176
 
            self._update_timer_callback_tag = (
177
 
                GLib.timeout_add(1000,
178
 
                                 glib_safely(self.update_timer)))
179
 
        elif not (flag or self._update_timer_callback_tag is None):
180
 
            GLib.source_remove(self._update_timer_callback_tag)
 
204
            self._update_timer_callback_tag = (gobject.timeout_add
 
205
                                               (1000,
 
206
                                                self.update_timer))
 
207
        elif old and self._update_timer_callback_lock == 0:
 
208
            gobject.source_remove(self._update_timer_callback_tag)
181
209
            self._update_timer_callback_tag = None
182
 
 
 
210
    
183
211
    def checker_completed(self, exitstatus, condition, command):
184
212
        if exitstatus == 0:
185
 
            log.debug('Checker for client %s (command "%s")'
186
 
                      " succeeded", self.properties["Name"], command)
 
213
            if self.last_checker_failed:
 
214
                self.last_checker_failed = False
 
215
                self.using_timer(False)
 
216
            #self.logger('Checker for client %s (command "%s")'
 
217
            #            ' was successful'
 
218
            #            % (self.properties["Name"], command))
187
219
            self.update()
188
220
            return
189
221
        # Checker failed
 
222
        if not self.last_checker_failed:
 
223
            self.last_checker_failed = True
 
224
            self.using_timer(True)
190
225
        if os.WIFEXITED(condition):
191
 
            log.info('Checker for client %s (command "%s") failed'
192
 
                     " with exit code %d", self.properties["Name"],
193
 
                     command, os.WEXITSTATUS(condition))
 
226
            self.logger('Checker for client %s (command "%s")'
 
227
                        ' failed with exit code %s'
 
228
                        % (self.properties["Name"], command,
 
229
                           os.WEXITSTATUS(condition)))
194
230
        elif os.WIFSIGNALED(condition):
195
 
            log.info('Checker for client %s (command "%s") was'
196
 
                     " killed by signal %d", self.properties["Name"],
197
 
                     command, os.WTERMSIG(condition))
 
231
            self.logger('Checker for client %s (command "%s")'
 
232
                        ' was killed by signal %s'
 
233
                        % (self.properties["Name"], command,
 
234
                           os.WTERMSIG(condition)))
 
235
        elif os.WCOREDUMP(condition):
 
236
            self.logger('Checker for client %s (command "%s")'
 
237
                        ' dumped core'
 
238
                        % (self.properties["Name"], command))
 
239
        else:
 
240
            self.logger('Checker for client %s completed'
 
241
                        ' mysteriously')
198
242
        self.update()
199
 
 
 
243
    
200
244
    def checker_started(self, command):
201
 
        """Server signals that a checker started."""
202
 
        log.debug('Client %s started checker "%s"',
203
 
                  self.properties["Name"], command)
204
 
 
 
245
        """Server signals that a checker started. This could be useful
 
246
           to log in the future. """
 
247
        #self.logger('Client %s started checker "%s"'
 
248
        #            % (self.properties["Name"], unicode(command)))
 
249
        pass
 
250
    
205
251
    def got_secret(self):
206
 
        log.info("Client %s received its secret",
207
 
                 self.properties["Name"])
208
 
 
 
252
        self.last_checker_failed = False
 
253
        self.logger('Client %s received its secret'
 
254
                    % self.properties["Name"])
 
255
    
209
256
    def need_approval(self, timeout, default):
210
257
        if not default:
211
 
            message = "Client %s needs approval within %f seconds"
 
258
            message = 'Client %s needs approval within %s seconds'
212
259
        else:
213
 
            message = "Client %s will get its secret in %f seconds"
214
 
        log.info(message, self.properties["Name"], timeout/1000)
215
 
 
 
260
            message = 'Client %s will get its secret in %s seconds'
 
261
        self.logger(message
 
262
                    % (self.properties["Name"], timeout/1000))
 
263
        self.using_timer(True)
 
264
    
216
265
    def rejected(self, reason):
217
 
        log.info("Client %s was rejected; reason: %s",
218
 
                 self.properties["Name"], reason)
219
 
 
 
266
        self.logger('Client %s was rejected; reason: %s'
 
267
                    % (self.properties["Name"], reason))
 
268
    
220
269
    def selectable(self):
221
270
        """Make this a "selectable" widget.
222
271
        This overrides the method from urwid.FlowWidget."""
223
272
        return True
224
 
 
 
273
    
225
274
    def rows(self, maxcolrow, focus=False):
226
275
        """How many rows this widget will occupy might depend on
227
276
        whether we have focus or not.
228
277
        This overrides the method from urwid.FlowWidget"""
229
278
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
230
 
 
 
279
    
231
280
    def current_widget(self, focus=False):
232
281
        if focus or self.opened:
233
282
            return self._focus_widget
234
283
        return self._widget
235
 
 
 
284
    
236
285
    def update(self):
237
286
        "Called when what is visible on the screen should be updated."
238
287
        # How to add standout mode to a style
239
 
        with_standout = {"normal": "standout",
240
 
                         "bold": "bold-standout",
241
 
                         "underline-blink":
242
 
                         "underline-blink-standout",
243
 
                         "bold-underline-blink":
244
 
                         "bold-underline-blink-standout",
245
 
                         }
 
288
        with_standout = { "normal": "standout",
 
289
                          "bold": "bold-standout",
 
290
                          "underline-blink":
 
291
                              "underline-blink-standout",
 
292
                          "bold-underline-blink":
 
293
                              "bold-underline-blink-standout",
 
294
                          }
246
295
 
247
296
        # Rebuild focus and non-focus widgets using current properties
248
297
 
249
298
        # Base part of a client. Name!
250
 
        base = "{name}: ".format(name=self.properties["Name"])
 
299
        base = ('%(name)s: '
 
300
                      % {"name": self.properties["Name"]})
251
301
        if not self.properties["Enabled"]:
252
302
            message = "DISABLED"
253
 
            self.using_timer(False)
254
303
        elif self.properties["ApprovalPending"]:
255
 
            timeout = datetime.timedelta(
256
 
                milliseconds=self.properties["ApprovalDelay"])
 
304
            timeout = datetime.timedelta(milliseconds
 
305
                                         = self.properties
 
306
                                         ["ApprovalDelay"])
257
307
            last_approval_request = isoformat_to_datetime(
258
308
                self.properties["LastApprovalRequest"])
259
309
            if last_approval_request is not None:
260
 
                timer = max(timeout - (datetime.datetime.utcnow()
261
 
                                       - last_approval_request),
262
 
                            datetime.timedelta())
 
310
                timer = timeout - (datetime.datetime.utcnow()
 
311
                                   - last_approval_request)
263
312
            else:
264
313
                timer = datetime.timedelta()
265
314
            if self.properties["ApprovedByDefault"]:
266
 
                message = "Approval in {}. (d)eny?"
 
315
                message = "Approval in %s. (d)eny?"
267
316
            else:
268
 
                message = "Denial in {}. (a)pprove?"
269
 
            message = message.format(str(timer).rsplit(".", 1)[0])
270
 
            self.using_timer(True)
271
 
        elif self.properties["LastCheckerStatus"] != 0:
272
 
            # When checker has failed, show timer until client expires
 
317
                message = "Denial in %s. (a)pprove?"
 
318
            message = message % unicode(timer).rsplit(".", 1)[0]
 
319
        elif self.last_checker_failed:
 
320
            # When checker has failed, print a timer until client expires
273
321
            expires = self.properties["Expires"]
274
322
            if expires == "":
275
323
                timer = datetime.timedelta(0)
276
324
            else:
277
 
                expires = (datetime.datetime.strptime
278
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
279
 
                timer = max(expires - datetime.datetime.utcnow(),
280
 
                            datetime.timedelta())
281
 
            message = ("A checker has failed! Time until client"
282
 
                       " gets disabled: {}"
283
 
                       .format(str(timer).rsplit(".", 1)[0]))
284
 
            self.using_timer(True)
 
325
                expires = datetime.datetime.strptime(expires,
 
326
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
327
                timer = expires - datetime.datetime.utcnow()
 
328
            message = ('A checker has failed! Time until client'
 
329
                       ' gets disabled: %s'
 
330
                           % unicode(timer).rsplit(".", 1)[0])
285
331
        else:
286
332
            message = "enabled"
287
 
            self.using_timer(False)
288
 
        self._text = "{}{}".format(base, message)
289
 
 
 
333
        self._text = "%s%s" % (base, message)
 
334
            
290
335
        if not urwid.supports_unicode():
291
336
            self._text = self._text.encode("ascii", "replace")
292
337
        textlist = [("normal", self._text)]
302
347
        # Run update hook, if any
303
348
        if self.update_hook is not None:
304
349
            self.update_hook()
305
 
 
 
350
    
306
351
    def update_timer(self):
307
 
        """called by GLib. Will indefinitely loop until
308
 
        GLib.source_remove() on tag is called
309
 
        """
 
352
        """called by gobject. Will indefinitely loop until
 
353
        gobject.source_remove() on tag is called"""
310
354
        self.update()
311
355
        return True             # Keep calling this
312
 
 
313
 
    def delete(self, **kwargs):
 
356
    
 
357
    def delete(self, *args, **kwargs):
314
358
        if self._update_timer_callback_tag is not None:
315
 
            GLib.source_remove(self._update_timer_callback_tag)
 
359
            gobject.source_remove(self._update_timer_callback_tag)
316
360
            self._update_timer_callback_tag = None
317
361
        for match in self.match_objects:
318
362
            match.remove()
319
363
        self.match_objects = ()
320
364
        if self.delete_hook is not None:
321
365
            self.delete_hook(self)
322
 
        return super(MandosClientWidget, self).delete(**kwargs)
323
 
 
 
366
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
367
    
324
368
    def render(self, maxcolrow, focus=False):
325
369
        """Render differently if we have focus.
326
370
        This overrides the method from urwid.FlowWidget"""
327
371
        return self.current_widget(focus).render(maxcolrow,
328
372
                                                 focus=focus)
329
 
 
 
373
    
330
374
    def keypress(self, maxcolrow, key):
331
375
        """Handle keys.
332
376
        This overrides the method from urwid.FlowWidget"""
333
377
        if key == "+":
334
 
            self.proxy.Set(client_interface, "Enabled",
335
 
                           dbus.Boolean(True), ignore_reply=True,
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
378
            self.proxy.Enable(dbus_interface = client_interface,
 
379
                              ignore_reply=True)
337
380
        elif key == "-":
338
 
            self.proxy.Set(client_interface, "Enabled", False,
339
 
                           ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
381
            self.proxy.Disable(dbus_interface = client_interface,
 
382
                               ignore_reply=True)
341
383
        elif key == "a":
342
384
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
343
 
                               dbus_interface=client_interface,
 
385
                               dbus_interface = client_interface,
344
386
                               ignore_reply=True)
345
387
        elif key == "d":
346
388
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
347
 
                               dbus_interface=client_interface,
 
389
                                  dbus_interface = client_interface,
348
390
                               ignore_reply=True)
349
391
        elif key == "R" or key == "_" or key == "ctrl k":
350
392
            self.server_proxy_object.RemoveClient(self.proxy
351
393
                                                  .object_path,
352
394
                                                  ignore_reply=True)
353
395
        elif key == "s":
354
 
            self.proxy.Set(client_interface, "CheckerRunning",
355
 
                           dbus.Boolean(True), ignore_reply=True,
356
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
396
            self.proxy.StartChecker(dbus_interface = client_interface,
 
397
                                    ignore_reply=True)
357
398
        elif key == "S":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(False), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
399
            self.proxy.StopChecker(dbus_interface = client_interface,
 
400
                                   ignore_reply=True)
361
401
        elif key == "C":
362
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
402
            self.proxy.CheckedOK(dbus_interface = client_interface,
363
403
                                 ignore_reply=True)
364
404
        # xxx
365
405
#         elif key == "p" or key == "=":
370
410
#             self.open()
371
411
        else:
372
412
            return key
373
 
 
374
 
    def properties_changed(self, interface, properties, invalidated):
375
 
        """Call self.update() if any properties changed.
 
413
    
 
414
    def property_changed(self, property=None, value=None,
 
415
                         *args, **kwargs):
 
416
        """Call self.update() if old value is not new value.
376
417
        This overrides the method from MandosClientPropertyCache"""
377
 
        old_values = {key: self.properties.get(key)
378
 
                      for key in properties.keys()}
379
 
        super(MandosClientWidget, self).properties_changed(
380
 
            interface, properties, invalidated)
381
 
        if any(old_values[key] != self.properties.get(key)
382
 
               for key in old_values):
 
418
        property_name = unicode(property)
 
419
        old_value = self.properties.get(property_name)
 
420
        super(MandosClientWidget, self).property_changed(
 
421
            property=property, value=value, *args, **kwargs)
 
422
        if self.properties.get(property_name) != old_value:
383
423
            self.update()
384
424
 
385
425
 
386
 
def glib_safely(func, retval=True):
387
 
    def safe_func(*args, **kwargs):
388
 
        try:
389
 
            return func(*args, **kwargs)
390
 
        except Exception:
391
 
            log.exception("")
392
 
            return retval
393
 
    return safe_func
394
 
 
395
 
 
396
426
class ConstrainedListBox(urwid.ListBox):
397
427
    """Like a normal urwid.ListBox, but will consume all "up" or
398
428
    "down" key presses, thus not allowing any containing widgets to
399
429
    use them as an excuse to shift focus away from this widget.
400
430
    """
401
 
    def keypress(self, *args, **kwargs):
402
 
        ret = (super(ConstrainedListBox, self)
403
 
               .keypress(*args, **kwargs))
 
431
    def keypress(self, maxcolrow, key):
 
432
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
404
433
        if ret in ("up", "down"):
405
434
            return
406
435
        return ret
412
441
    """
413
442
    def __init__(self, max_log_length=1000):
414
443
        DBusGMainLoop(set_as_default=True)
415
 
 
 
444
        
416
445
        self.screen = urwid.curses_display.Screen()
417
 
 
 
446
        
418
447
        self.screen.register_palette((
419
448
                ("normal",
420
449
                 "default", "default", None),
421
450
                ("bold",
422
 
                 "bold", "default", "bold"),
 
451
                 "default", "default", "bold"),
423
452
                ("underline-blink",
424
 
                 "underline,blink", "default", "underline,blink"),
 
453
                 "default", "default", "underline"),
425
454
                ("standout",
426
 
                 "standout", "default", "standout"),
 
455
                 "default", "default", "standout"),
427
456
                ("bold-underline-blink",
428
 
                 "bold,underline,blink", "default",
429
 
                 "bold,underline,blink"),
 
457
                 "default", "default", ("bold", "underline")),
430
458
                ("bold-standout",
431
 
                 "bold,standout", "default", "bold,standout"),
 
459
                 "default", "default", ("bold", "standout")),
432
460
                ("underline-blink-standout",
433
 
                 "underline,blink,standout", "default",
434
 
                 "underline,blink,standout"),
 
461
                 "default", "default", ("underline", "standout")),
435
462
                ("bold-underline-blink-standout",
436
 
                 "bold,underline,blink,standout", "default",
437
 
                 "bold,underline,blink,standout"),
 
463
                 "default", "default", ("bold", "underline",
 
464
                                          "standout")),
438
465
                ))
439
 
 
 
466
        
440
467
        if urwid.supports_unicode():
441
 
            self.divider = "─"  # \u2500
 
468
            self.divider = "─" # \u2500
 
469
            #self.divider = "━" # \u2501
442
470
        else:
443
 
            self.divider = "_"  # \u005f
444
 
 
 
471
            #self.divider = "-" # \u002d
 
472
            self.divider = "_" # \u005f
 
473
        
445
474
        self.screen.start()
446
 
 
 
475
        
447
476
        self.size = self.screen.get_cols_rows()
448
 
 
 
477
        
449
478
        self.clients = urwid.SimpleListWalker([])
450
479
        self.clients_dict = {}
451
 
 
 
480
        
452
481
        # We will add Text widgets to this list
453
 
        self.log = urwid.SimpleListWalker([])
 
482
        self.log = []
454
483
        self.max_log_length = max_log_length
455
 
 
 
484
        
456
485
        # We keep a reference to the log widget so we can remove it
457
486
        # from the ListWalker without it getting destroyed
458
487
        self.logbox = ConstrainedListBox(self.log)
459
 
 
 
488
        
460
489
        # This keeps track of whether self.uilist currently has
461
490
        # self.logbox in it or not
462
491
        self.log_visible = True
463
492
        self.log_wrap = "any"
464
 
 
465
 
        self.loghandler = UILogHandler(self)
466
 
 
 
493
        
467
494
        self.rebuild()
468
 
        self.add_log_line(("bold",
469
 
                           "Mandos Monitor version " + version))
470
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
471
 
 
472
 
        self.busname = domain + ".Mandos"
473
 
        self.main_loop = GLib.MainLoop()
474
 
 
475
 
    def client_not_found(self, key_id, address):
476
 
        log.info("Client with address %s and key ID %s could"
477
 
                 " not be found", address, key_id)
478
 
 
 
495
        self.log_message_raw(("bold",
 
496
                              "Mandos Monitor version " + version))
 
497
        self.log_message_raw(("bold",
 
498
                              "q: Quit  ?: Help"))
 
499
        
 
500
        self.busname = domain + '.Mandos'
 
501
        self.main_loop = gobject.MainLoop()
 
502
    
 
503
    def client_not_found(self, fingerprint, address):
 
504
        self.log_message(("Client with address %s and fingerprint %s"
 
505
                          " could not be found" % (address,
 
506
                                                    fingerprint)))
 
507
    
479
508
    def rebuild(self):
480
509
        """This rebuilds the User Interface.
481
510
        Call this when the widget layout needs to change"""
482
511
        self.uilist = []
483
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
512
        #self.uilist.append(urwid.ListBox(self.clients))
484
513
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
485
514
                                                          clients),
486
 
                                       # header=urwid.Divider(),
 
515
                                       #header=urwid.Divider(),
487
516
                                       header=None,
488
 
                                       footer=urwid.Divider(
489
 
                                           div_char=self.divider)))
 
517
                                       footer=
 
518
                                       urwid.Divider(div_char=
 
519
                                                     self.divider)))
490
520
        if self.log_visible:
491
521
            self.uilist.append(self.logbox)
492
522
        self.topwidget = urwid.Pile(self.uilist)
493
 
 
494
 
    def add_log_line(self, markup):
 
523
    
 
524
    def log_message(self, message):
 
525
        timestamp = datetime.datetime.now().isoformat()
 
526
        self.log_message_raw(timestamp + ": " + message)
 
527
    
 
528
    def log_message_raw(self, markup):
 
529
        """Add a log message to the log buffer."""
495
530
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
496
 
        if self.max_log_length:
497
 
            if len(self.log) > self.max_log_length:
498
 
                del self.log[0:(len(self.log) - self.max_log_length)]
499
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
531
        if (self.max_log_length
 
532
            and len(self.log) > self.max_log_length):
 
533
            del self.log[0:len(self.log)-self.max_log_length-1]
 
534
        self.logbox.set_focus(len(self.logbox.body.contents),
500
535
                              coming_from="above")
501
536
        self.refresh()
502
 
 
 
537
    
503
538
    def toggle_log_display(self):
504
539
        """Toggle visibility of the log buffer."""
505
540
        self.log_visible = not self.log_visible
506
541
        self.rebuild()
507
 
        log.debug("Log visibility changed to: %s", self.log_visible)
508
 
 
 
542
        #self.log_message("Log visibility changed to: "
 
543
        #                 + unicode(self.log_visible))
 
544
    
509
545
    def change_log_display(self):
510
546
        """Change type of log display.
511
547
        Currently, this toggles wrapping of text lines."""
515
551
            self.log_wrap = "clip"
516
552
        for textwidget in self.log:
517
553
            textwidget.set_wrap_mode(self.log_wrap)
518
 
        log.debug("Wrap mode: %s", self.log_wrap)
519
 
 
520
 
    def find_and_remove_client(self, path, interfaces):
 
554
        #self.log_message("Wrap mode: " + self.log_wrap)
 
555
    
 
556
    def find_and_remove_client(self, path, name):
521
557
        """Find a client by its object path and remove it.
522
 
 
523
 
        This is connected to the InterfacesRemoved signal from the
 
558
        
 
559
        This is connected to the ClientRemoved signal from the
524
560
        Mandos server object."""
525
 
        if client_interface not in interfaces:
526
 
            # Not a Mandos client object; ignore
527
 
            return
528
561
        try:
529
562
            client = self.clients_dict[path]
530
563
        except KeyError:
531
564
            # not found?
532
 
            log.warning("Unknown client %s removed", path)
 
565
            self.log_message("Unknown client %r (%r) removed", name,
 
566
                             path)
533
567
            return
534
568
        client.delete()
535
 
 
536
 
    def add_new_client(self, path, ifs_and_props):
537
 
        """Find a client by its object path and remove it.
538
 
 
539
 
        This is connected to the InterfacesAdded signal from the
540
 
        Mandos server object.
541
 
        """
542
 
        if client_interface not in ifs_and_props:
543
 
            # Not a Mandos client object; ignore
544
 
            return
 
569
    
 
570
    def add_new_client(self, path):
545
571
        client_proxy_object = self.bus.get_object(self.busname, path)
546
 
        self.add_client(MandosClientWidget(
547
 
            server_proxy_object=self.mandos_serv,
548
 
            proxy_object=client_proxy_object,
549
 
            update_hook=self.refresh,
550
 
            delete_hook=self.remove_client,
551
 
            properties=dict(ifs_and_props[client_interface])),
 
572
        self.add_client(MandosClientWidget(server_proxy_object
 
573
                                           =self.mandos_serv,
 
574
                                           proxy_object
 
575
                                           =client_proxy_object,
 
576
                                           update_hook
 
577
                                           =self.refresh,
 
578
                                           delete_hook
 
579
                                           =self.remove_client,
 
580
                                           logger
 
581
                                           =self.log_message),
552
582
                        path=path)
553
 
 
 
583
    
554
584
    def add_client(self, client, path=None):
555
585
        self.clients.append(client)
556
586
        if path is None:
557
587
            path = client.proxy.object_path
558
588
        self.clients_dict[path] = client
559
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
589
        self.clients.sort(None, lambda c: c.properties["Name"])
560
590
        self.refresh()
561
 
 
 
591
    
562
592
    def remove_client(self, client, path=None):
563
593
        self.clients.remove(client)
564
594
        if path is None:
565
595
            path = client.proxy.object_path
566
596
        del self.clients_dict[path]
 
597
        if not self.clients_dict:
 
598
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
599
            # is completely emptied, we need to recreate it.
 
600
            self.clients = urwid.SimpleListWalker([])
 
601
            self.rebuild()
567
602
        self.refresh()
568
 
 
 
603
    
569
604
    def refresh(self):
570
605
        """Redraw the screen"""
571
606
        canvas = self.topwidget.render(self.size, focus=True)
572
607
        self.screen.draw_screen(self.size, canvas)
573
 
 
 
608
    
574
609
    def run(self):
575
610
        """Start the main loop and exit when it's done."""
576
 
        log.addHandler(self.loghandler)
577
 
        self.orig_log_propagate = log.propagate
578
 
        log.propagate = False
579
 
        self.orig_log_level = log.level
580
 
        log.setLevel("INFO")
581
611
        self.bus = dbus.SystemBus()
582
612
        mandos_dbus_objc = self.bus.get_object(
583
613
            self.busname, "/", follow_name_owner_changes=True)
584
 
        self.mandos_serv = dbus.Interface(
585
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
614
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
615
                                          dbus_interface
 
616
                                          = server_interface)
586
617
        try:
587
618
            mandos_clients = (self.mandos_serv
588
619
                              .GetAllClientsWithProperties())
589
 
            if not mandos_clients:
590
 
                log.warning("Note: Server has no clients.")
591
620
        except dbus.exceptions.DBusException:
592
 
            log.warning("Note: No Mandos server running.")
593
621
            mandos_clients = dbus.Dictionary()
594
 
 
 
622
        
595
623
        (self.mandos_serv
596
 
         .connect_to_signal("InterfacesRemoved",
 
624
         .connect_to_signal("ClientRemoved",
597
625
                            self.find_and_remove_client,
598
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
626
                            dbus_interface=server_interface,
599
627
                            byte_arrays=True))
600
628
        (self.mandos_serv
601
 
         .connect_to_signal("InterfacesAdded",
 
629
         .connect_to_signal("ClientAdded",
602
630
                            self.add_new_client,
603
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
631
                            dbus_interface=server_interface,
604
632
                            byte_arrays=True))
605
633
        (self.mandos_serv
606
634
         .connect_to_signal("ClientNotFound",
607
635
                            self.client_not_found,
608
636
                            dbus_interface=server_interface,
609
637
                            byte_arrays=True))
610
 
        for path, client in mandos_clients.items():
 
638
        for path, client in mandos_clients.iteritems():
611
639
            client_proxy_object = self.bus.get_object(self.busname,
612
640
                                                      path)
613
 
            self.add_client(MandosClientWidget(
614
 
                server_proxy_object=self.mandos_serv,
615
 
                proxy_object=client_proxy_object,
616
 
                properties=client,
617
 
                update_hook=self.refresh,
618
 
                delete_hook=self.remove_client),
 
641
            self.add_client(MandosClientWidget(server_proxy_object
 
642
                                               =self.mandos_serv,
 
643
                                               proxy_object
 
644
                                               =client_proxy_object,
 
645
                                               properties=client,
 
646
                                               update_hook
 
647
                                               =self.refresh,
 
648
                                               delete_hook
 
649
                                               =self.remove_client,
 
650
                                               logger
 
651
                                               =self.log_message),
619
652
                            path=path)
620
653
 
621
654
        self.refresh()
622
 
        self._input_callback_tag = (
623
 
            GLib.io_add_watch(
624
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
625
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
626
 
                glib_safely(self.process_input)))
 
655
        self._input_callback_tag = (gobject.io_add_watch
 
656
                                    (sys.stdin.fileno(),
 
657
                                     gobject.IO_IN,
 
658
                                     self.process_input))
627
659
        self.main_loop.run()
628
660
        # Main loop has finished, we should close everything now
629
 
        GLib.source_remove(self._input_callback_tag)
630
 
        with warnings.catch_warnings():
631
 
            warnings.simplefilter("ignore", BytesWarning)
632
 
            self.screen.stop()
633
 
 
 
661
        gobject.source_remove(self._input_callback_tag)
 
662
        self.screen.stop()
 
663
    
634
664
    def stop(self):
635
665
        self.main_loop.quit()
636
 
        log.removeHandler(self.loghandler)
637
 
        log.propagate = self.orig_log_propagate
638
 
 
 
666
    
639
667
    def process_input(self, source, condition):
640
668
        keys = self.screen.get_input()
641
 
        translations = {"ctrl n": "down",       # Emacs
642
 
                        "ctrl p": "up",         # Emacs
643
 
                        "ctrl v": "page down",  # Emacs
644
 
                        "meta v": "page up",    # Emacs
645
 
                        " ": "page down",       # less
646
 
                        "f": "page down",       # less
647
 
                        "b": "page up",         # less
648
 
                        "j": "down",            # vi
649
 
                        "k": "up",              # vi
650
 
                        }
 
669
        translations = { "ctrl n": "down",      # Emacs
 
670
                         "ctrl p": "up",        # Emacs
 
671
                         "ctrl v": "page down", # Emacs
 
672
                         "meta v": "page up",   # Emacs
 
673
                         " ": "page down",      # less
 
674
                         "f": "page down",      # less
 
675
                         "b": "page up",        # less
 
676
                         "j": "down",           # vi
 
677
                         "k": "up",             # vi
 
678
                         }
651
679
        for key in keys:
652
680
            try:
653
681
                key = translations[key]
654
682
            except KeyError:    # :-)
655
683
                pass
656
 
 
 
684
            
657
685
            if key == "q" or key == "Q":
658
686
                self.stop()
659
687
                break
660
688
            elif key == "window resize":
661
689
                self.size = self.screen.get_cols_rows()
662
690
                self.refresh()
663
 
            elif key == "ctrl l":
664
 
                self.screen.clear()
 
691
            elif key == "\f":  # Ctrl-L
665
692
                self.refresh()
666
693
            elif key == "l" or key == "D":
667
694
                self.toggle_log_display()
673
700
                if not self.log_visible:
674
701
                    self.log_visible = True
675
702
                    self.rebuild()
676
 
                self.add_log_line(("bold",
677
 
                                   "  ".join(("q: Quit",
678
 
                                              "?: Help",
679
 
                                              "l: Log window toggle",
680
 
                                              "TAB: Switch window",
681
 
                                              "w: Wrap (log lines)",
682
 
                                              "v: Toggle verbose log",
683
 
                                   ))))
684
 
                self.add_log_line(("bold",
685
 
                                   "  ".join(("Clients:",
686
 
                                              "+: Enable",
687
 
                                              "-: Disable",
688
 
                                              "R: Remove",
689
 
                                              "s: Start new checker",
690
 
                                              "S: Stop checker",
691
 
                                              "C: Checker OK",
692
 
                                              "a: Approve",
693
 
                                              "d: Deny",
694
 
                                   ))))
 
703
                self.log_message_raw(("bold",
 
704
                                      "  ".
 
705
                                      join(("q: Quit",
 
706
                                            "?: Help",
 
707
                                            "l: Log window toggle",
 
708
                                            "TAB: Switch window",
 
709
                                            "w: Wrap (log)"))))
 
710
                self.log_message_raw(("bold",
 
711
                                      "  "
 
712
                                      .join(("Clients:",
 
713
                                             "+: Enable",
 
714
                                             "-: Disable",
 
715
                                             "R: Remove",
 
716
                                             "s: Start new checker",
 
717
                                             "S: Stop checker",
 
718
                                             "C: Checker OK",
 
719
                                             "a: Approve",
 
720
                                             "d: Deny"))))
695
721
                self.refresh()
696
722
            elif key == "tab":
697
723
                if self.topwidget.get_focus() is self.logbox:
699
725
                else:
700
726
                    self.topwidget.set_focus(self.logbox)
701
727
                self.refresh()
702
 
            elif key == "v":
703
 
                if log.level < logging.INFO:
704
 
                    log.setLevel(logging.INFO)
705
 
                    log.info("Verbose mode: Off")
706
 
                else:
707
 
                    log.setLevel(logging.NOTSET)
708
 
                    log.info("Verbose mode: On")
709
 
            # elif (key == "end" or key == "meta >" or key == "G"
710
 
            #       or key == ">"):
711
 
            #     pass            # xxx end-of-buffer
712
 
            # elif (key == "home" or key == "meta <" or key == "g"
713
 
            #       or key == "<"):
714
 
            #     pass            # xxx beginning-of-buffer
715
 
            # elif key == "ctrl e" or key == "$":
716
 
            #     pass            # xxx move-end-of-line
717
 
            # elif key == "ctrl a" or key == "^":
718
 
            #     pass            # xxx move-beginning-of-line
719
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
720
 
            #     pass            # xxx left
721
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
722
 
            #     pass            # xxx right
723
 
            # elif key == "a":
724
 
            #     pass            # scroll up log
725
 
            # elif key == "z":
726
 
            #     pass            # scroll down log
 
728
            #elif (key == "end" or key == "meta >" or key == "G"
 
729
            #      or key == ">"):
 
730
            #    pass            # xxx end-of-buffer
 
731
            #elif (key == "home" or key == "meta <" or key == "g"
 
732
            #      or key == "<"):
 
733
            #    pass            # xxx beginning-of-buffer
 
734
            #elif key == "ctrl e" or key == "$":
 
735
            #    pass            # xxx move-end-of-line
 
736
            #elif key == "ctrl a" or key == "^":
 
737
            #    pass            # xxx move-beginning-of-line
 
738
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
739
            #    pass            # xxx left
 
740
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
741
            #    pass            # xxx right
 
742
            #elif key == "a":
 
743
            #    pass            # scroll up log
 
744
            #elif key == "z":
 
745
            #    pass            # scroll down log
727
746
            elif self.topwidget.selectable():
728
747
                self.topwidget.keypress(self.size, key)
729
748
                self.refresh()
730
749
        return True
731
750
 
732
 
 
733
 
class UILogHandler(logging.Handler):
734
 
    def __init__(self, ui, *args, **kwargs):
735
 
        self.ui = ui
736
 
        super(UILogHandler, self).__init__(*args, **kwargs)
737
 
        self.setFormatter(
738
 
            logging.Formatter("%(asctime)s: %(message)s"))
739
 
    def emit(self, record):
740
 
        msg = self.format(record)
741
 
        if record.levelno > logging.INFO:
742
 
            msg = ("bold", msg)
743
 
        self.ui.add_log_line(msg)
744
 
 
745
 
 
746
751
ui = UserInterface()
747
752
try:
748
753
    ui.run()
749
754
except KeyboardInterrupt:
750
 
    with warnings.catch_warnings():
751
 
        warnings.filterwarnings("ignore", "", BytesWarning)
752
 
        ui.screen.stop()
753
 
except Exception:
754
 
    with warnings.catch_warnings():
755
 
        warnings.filterwarnings("ignore", "", BytesWarning)
756
 
        ui.screen.stop()
 
755
    ui.screen.stop()
 
756
except Exception, e:
 
757
    ui.log_message(unicode(e))
 
758
    ui.screen.stop()
757
759
    raise