/mandos/trunk

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

« back to all changes in this revision

Viewing changes to mandos-monitor

  • Committer: Teddy Hogeborn
  • Date: 2022-04-25 18:46:48 UTC
  • mto: This revision was merged to the branch mainline in revision 1261.
  • Revision ID: teddy@recompile.se-20220425184648-w9nas5qn94qcllum
Tags: version-1.8.15-1
Version 1.8.15-1

* Makefile (version): Change to "1.8.15".
* NEWS (Version 1.8.15): Add new entry.
* debian/changelog (1.8.15-1): - '' -

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
#
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
#
 
6
# Copyright © 2009-2019 Teddy Hogeborn
 
7
# Copyright © 2009-2019 Björn Påhlsson
 
8
#
 
9
# This file is part of Mandos.
 
10
#
 
11
# Mandos is free software: you can redistribute it and/or modify it
 
12
# under the terms of the GNU General Public License as published by
 
13
# the Free Software Foundation, either version 3 of the License, or
 
14
# (at your option) any later version.
 
15
#
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
19
#     GNU General Public License for more details.
 
20
#
 
21
# You should have received a copy of the GNU General Public License
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
 
24
# Contact the authors at <mandos@recompile.se>.
 
25
#
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
3
28
 
4
 
from __future__ import division, absolute_import, with_statement
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
5
33
 
6
34
import sys
 
35
import logging
7
36
import os
8
 
import signal
9
 
 
 
37
import warnings
10
38
import datetime
 
39
import locale
11
40
 
12
41
import urwid.curses_display
13
42
import urwid
14
43
 
15
44
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
45
from gi.repository import GLib
17
46
 
18
47
import dbus
19
48
 
20
 
import UserList
21
 
 
22
 
import locale
23
 
 
24
 
locale.setlocale(locale.LC_ALL, u'')
25
 
 
26
 
import logging
27
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
 
51
    str = unicode
 
52
    input = raw_input
 
53
 
 
54
# Show warnings by default
 
55
if not sys.warnoptions:
 
56
    warnings.simplefilter("default")
 
57
 
 
58
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
59
logging.basicConfig(level="NOTSET", # Show all messages
 
60
                    format="%(message)s") # Show basic log messages
 
61
 
 
62
logging.captureWarnings(True)   # Show warnings via the logging system
 
63
 
 
64
locale.setlocale(locale.LC_ALL, "")
 
65
 
 
66
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
28
67
 
29
68
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
31
 
server_interface = domain + '.Mandos'
32
 
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)
42
 
 
43
 
class MandosClientPropertyCache(object):
 
69
domain = "se.recompile"
 
70
server_interface = domain + ".Mandos"
 
71
client_interface = domain + ".Mandos.Client"
 
72
version = "1.8.15"
 
73
 
 
74
try:
 
75
    dbus.OBJECT_MANAGER_IFACE
 
76
except AttributeError:
 
77
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
78
 
 
79
 
 
80
def isoformat_to_datetime(iso):
 
81
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
82
    if not iso:
 
83
        return None
 
84
    d, t = iso.split("T", 1)
 
85
    year, month, day = d.split("-", 2)
 
86
    hour, minute, second = t.split(":", 2)
 
87
    second, fraction = divmod(float(second), 1)
 
88
    return datetime.datetime(int(year),
 
89
                             int(month),
 
90
                             int(day),
 
91
                             int(hour),
 
92
                             int(minute),
 
93
                             int(second),            # Whole seconds
 
94
                             int(fraction*1000000))  # Microseconds
 
95
 
 
96
 
 
97
class MandosClientPropertyCache:
44
98
    """This wraps a Mandos Client D-Bus proxy object, caches the
45
99
    properties and calls a hook function when any of them are
46
100
    changed.
47
101
    """
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
 
            proxy_object=proxy_object, *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.
 
102
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
103
        self.proxy = proxy_object  # Mandos Client proxy object
 
104
        self.properties = dict() if properties is None else properties
 
105
        self.property_changed_match = (
 
106
            self.proxy.connect_to_signal("PropertiesChanged",
 
107
                                         self.properties_changed,
 
108
                                         dbus.PROPERTIES_IFACE,
 
109
                                         byte_arrays=True))
 
110
 
 
111
        if properties is None:
 
112
            self.properties.update(self.proxy.GetAll(
 
113
                client_interface,
 
114
                dbus_interface=dbus.PROPERTIES_IFACE))
 
115
 
 
116
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
117
 
 
118
    def properties_changed(self, interface, properties, invalidated):
 
119
        """This is called whenever we get a PropertiesChanged signal
 
120
        It updates the changed properties in the "properties" dict.
66
121
        """
67
122
        # Update properties dict with new value
68
 
        self.properties[property] = value
 
123
        if interface == client_interface:
 
124
            self.properties.update(properties)
 
125
 
 
126
    def delete(self):
 
127
        self.property_changed_match.remove()
69
128
 
70
129
 
71
130
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
72
131
    """A Mandos Client which is visible on the screen.
73
132
    """
74
 
    
 
133
 
75
134
    def __init__(self, server_proxy_object=None, update_hook=None,
76
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
135
                 delete_hook=None, **kwargs):
77
136
        # Called on update
78
137
        self.update_hook = update_hook
79
138
        # Called on delete
80
139
        self.delete_hook = delete_hook
81
140
        # Mandos Server proxy object
82
141
        self.server_proxy_object = server_proxy_object
83
 
        # Logger
84
 
        self.logger = logger
85
 
        
 
142
 
 
143
        self._update_timer_callback_tag = None
 
144
 
86
145
        # The widget shown normally
87
 
        self._text_widget = urwid.Text(u"")
 
146
        self._text_widget = urwid.Text("")
88
147
        # 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)
 
148
        self._focus_text_widget = urwid.Text("")
 
149
        super(MandosClientWidget, self).__init__(**kwargs)
93
150
        self.update()
94
151
        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"Rejected",
108
 
                                     self.rejected,
109
 
                                     client_interface,
110
 
                                     byte_arrays=True)
111
 
    
 
152
 
 
153
        self.match_objects = (
 
154
            self.proxy.connect_to_signal("CheckerCompleted",
 
155
                                         self.checker_completed,
 
156
                                         client_interface,
 
157
                                         byte_arrays=True),
 
158
            self.proxy.connect_to_signal("CheckerStarted",
 
159
                                         self.checker_started,
 
160
                                         client_interface,
 
161
                                         byte_arrays=True),
 
162
            self.proxy.connect_to_signal("GotSecret",
 
163
                                         self.got_secret,
 
164
                                         client_interface,
 
165
                                         byte_arrays=True),
 
166
            self.proxy.connect_to_signal("NeedApproval",
 
167
                                         self.need_approval,
 
168
                                         client_interface,
 
169
                                         byte_arrays=True),
 
170
            self.proxy.connect_to_signal("Rejected",
 
171
                                         self.rejected,
 
172
                                         client_interface,
 
173
                                         byte_arrays=True))
 
174
        log.debug("Created client %s", self.properties["Name"])
 
175
 
 
176
    def using_timer(self, flag):
 
177
        """Call this method with True or False when timer should be
 
178
        activated or deactivated.
 
179
        """
 
180
        if flag and self._update_timer_callback_tag is None:
 
181
            # Will update the shown timer value every second
 
182
            self._update_timer_callback_tag = (
 
183
                GLib.timeout_add(1000,
 
184
                                 glib_safely(self.update_timer)))
 
185
        elif not (flag or self._update_timer_callback_tag is None):
 
186
            GLib.source_remove(self._update_timer_callback_tag)
 
187
            self._update_timer_callback_tag = None
 
188
 
112
189
    def checker_completed(self, exitstatus, condition, command):
113
190
        if exitstatus == 0:
114
 
            self.logger(u'Checker for client %s (command "%s")'
115
 
                        u' was successful'
116
 
                        % (self.properties[u"name"], command))
 
191
            log.debug('Checker for client %s (command "%s")'
 
192
                      " succeeded", self.properties["Name"], command)
 
193
            self.update()
117
194
            return
 
195
        # Checker failed
118
196
        if os.WIFEXITED(condition):
119
 
            self.logger(u'Checker for client %s (command "%s")'
120
 
                        u' failed with exit code %s'
121
 
                        % (self.properties[u"name"], command,
122
 
                           os.WEXITSTATUS(condition)))
123
 
            return
124
 
        if os.WIFSIGNALED(condition):
125
 
            self.logger(u'Checker for client %s (command "%s")'
126
 
                        u' was killed by signal %s'
127
 
                        % (self.properties[u"name"], command,
128
 
                           os.WTERMSIG(condition)))
129
 
            return
130
 
        if os.WCOREDUMP(condition):
131
 
            self.logger(u'Checker for client %s (command "%s")'
132
 
                        u' dumped core'
133
 
                        % (self.properties[u"name"], command))
134
 
        self.logger(u'Checker for client %s completed mysteriously')
135
 
    
 
197
            log.info('Checker for client %s (command "%s") failed'
 
198
                     " with exit code %d", self.properties["Name"],
 
199
                     command, os.WEXITSTATUS(condition))
 
200
        elif os.WIFSIGNALED(condition):
 
201
            log.info('Checker for client %s (command "%s") was'
 
202
                     " killed by signal %d", self.properties["Name"],
 
203
                     command, os.WTERMSIG(condition))
 
204
        self.update()
 
205
 
136
206
    def checker_started(self, command):
137
 
        self.logger(u'Client %s started checker "%s"'
138
 
                    % (self.properties[u"name"], unicode(command)))
139
 
    
 
207
        """Server signals that a checker started."""
 
208
        log.debug('Client %s started checker "%s"',
 
209
                  self.properties["Name"], command)
 
210
 
140
211
    def got_secret(self):
141
 
        self.logger(u'Client %s received its secret'
142
 
                    % self.properties[u"name"])
143
 
    
144
 
    def rejected(self):
145
 
        self.logger(u'Client %s was rejected'
146
 
                    % self.properties[u"name"])
147
 
    
 
212
        log.info("Client %s received its secret",
 
213
                 self.properties["Name"])
 
214
 
 
215
    def need_approval(self, timeout, default):
 
216
        if not default:
 
217
            message = "Client %s needs approval within %f seconds"
 
218
        else:
 
219
            message = "Client %s will get its secret in %f seconds"
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
221
 
 
222
    def rejected(self, reason):
 
223
        log.info("Client %s was rejected; reason: %s",
 
224
                 self.properties["Name"], reason)
 
225
 
148
226
    def selectable(self):
149
227
        """Make this a "selectable" widget.
150
228
        This overrides the method from urwid.FlowWidget."""
151
229
        return True
152
 
    
153
 
    def rows(self, (maxcol,), focus=False):
 
230
 
 
231
    def rows(self, maxcolrow, focus=False):
154
232
        """How many rows this widget will occupy might depend on
155
233
        whether we have focus or not.
156
234
        This overrides the method from urwid.FlowWidget"""
157
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
158
 
    
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
236
 
159
237
    def current_widget(self, focus=False):
160
238
        if focus or self.opened:
161
239
            return self._focus_widget
162
240
        return self._widget
163
 
    
 
241
 
164
242
    def update(self):
165
243
        "Called when what is visible on the screen should be updated."
166
244
        # How to add standout mode to a style
167
 
        with_standout = { u"normal": u"standout",
168
 
                          u"bold": u"bold-standout",
169
 
                          u"underline-blink":
170
 
                              u"underline-blink-standout",
171
 
                          u"bold-underline-blink":
172
 
                              u"bold-underline-blink-standout",
173
 
                          }
174
 
        
 
245
        with_standout = {"normal": "standout",
 
246
                         "bold": "bold-standout",
 
247
                         "underline-blink":
 
248
                         "underline-blink-standout",
 
249
                         "bold-underline-blink":
 
250
                         "bold-underline-blink-standout",
 
251
                         }
 
252
 
175
253
        # Rebuild focus and non-focus widgets using current properties
176
 
        self._text = (u'%(name)s: %(enabled)s'
177
 
                      % { u"name": self.properties[u"name"],
178
 
                          u"enabled":
179
 
                              (u"enabled"
180
 
                               if self.properties[u"enabled"]
181
 
                               else u"DISABLED")})
 
254
 
 
255
        # Base part of a client. Name!
 
256
        base = "{name}: ".format(name=self.properties["Name"])
 
257
        if not self.properties["Enabled"]:
 
258
            message = "DISABLED"
 
259
            self.using_timer(False)
 
260
        elif self.properties["ApprovalPending"]:
 
261
            timeout = datetime.timedelta(
 
262
                milliseconds=self.properties["ApprovalDelay"])
 
263
            last_approval_request = isoformat_to_datetime(
 
264
                self.properties["LastApprovalRequest"])
 
265
            if last_approval_request is not None:
 
266
                timer = max(timeout - (datetime.datetime.utcnow()
 
267
                                       - last_approval_request),
 
268
                            datetime.timedelta())
 
269
            else:
 
270
                timer = datetime.timedelta()
 
271
            if self.properties["ApprovedByDefault"]:
 
272
                message = "Approval in {}. (d)eny?"
 
273
            else:
 
274
                message = "Denial in {}. (a)pprove?"
 
275
            message = message.format(str(timer).rsplit(".", 1)[0])
 
276
            self.using_timer(True)
 
277
        elif self.properties["LastCheckerStatus"] != 0:
 
278
            # When checker has failed, show timer until client expires
 
279
            expires = self.properties["Expires"]
 
280
            if expires == "":
 
281
                timer = datetime.timedelta(0)
 
282
            else:
 
283
                expires = (datetime.datetime.strptime
 
284
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
285
                timer = max(expires - datetime.datetime.utcnow(),
 
286
                            datetime.timedelta())
 
287
            message = ("A checker has failed! Time until client"
 
288
                       " gets disabled: {}"
 
289
                       .format(str(timer).rsplit(".", 1)[0]))
 
290
            self.using_timer(True)
 
291
        else:
 
292
            message = "enabled"
 
293
            self.using_timer(False)
 
294
        self._text = "{}{}".format(base, message)
 
295
 
182
296
        if not urwid.supports_unicode():
183
297
            self._text = self._text.encode("ascii", "replace")
184
 
        textlist = [(u"normal", self._text)]
 
298
        textlist = [("normal", self._text)]
185
299
        self._text_widget.set_text(textlist)
186
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
187
301
                                           text[1])
194
308
        # Run update hook, if any
195
309
        if self.update_hook is not None:
196
310
            self.update_hook()
197
 
    
198
 
    def delete(self):
 
311
 
 
312
    def update_timer(self):
 
313
        """called by GLib. Will indefinitely loop until
 
314
        GLib.source_remove() on tag is called
 
315
        """
 
316
        self.update()
 
317
        return True             # Keep calling this
 
318
 
 
319
    def delete(self, **kwargs):
 
320
        if self._update_timer_callback_tag is not None:
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
322
            self._update_timer_callback_tag = None
 
323
        for match in self.match_objects:
 
324
            match.remove()
 
325
        self.match_objects = ()
199
326
        if self.delete_hook is not None:
200
327
            self.delete_hook(self)
201
 
    
202
 
    def render(self, (maxcol,), focus=False):
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
329
 
 
330
    def render(self, maxcolrow, focus=False):
203
331
        """Render differently if we have focus.
204
332
        This overrides the method from urwid.FlowWidget"""
205
 
        return self.current_widget(focus).render((maxcol,),
 
333
        return self.current_widget(focus).render(maxcolrow,
206
334
                                                 focus=focus)
207
 
    
208
 
    def keypress(self, (maxcol,), key):
 
335
 
 
336
    def keypress(self, maxcolrow, key):
209
337
        """Handle keys.
210
338
        This overrides the method from urwid.FlowWidget"""
211
 
        if key == u"e" or key == u"+":
212
 
            self.proxy.Enable()
213
 
        elif key == u"d" or key == u"-":
214
 
            self.proxy.Disable()
215
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
339
        if key == "+":
 
340
            self.proxy.Set(client_interface, "Enabled",
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
343
        elif key == "-":
 
344
            self.proxy.Set(client_interface, "Enabled", False,
 
345
                           ignore_reply=True,
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
347
        elif key == "a":
 
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
                               dbus_interface=client_interface,
 
350
                               ignore_reply=True)
 
351
        elif key == "d":
 
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
                               dbus_interface=client_interface,
 
354
                               ignore_reply=True)
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
216
356
            self.server_proxy_object.RemoveClient(self.proxy
217
 
                                                  .object_path)
218
 
        elif key == u"s":
219
 
            self.proxy.StartChecker()
220
 
        elif key == u"S":
221
 
            self.proxy.StopChecker()
222
 
        elif key == u"C":
223
 
            self.proxy.CheckedOK()
 
357
                                                  .object_path,
 
358
                                                  ignore_reply=True)
 
359
        elif key == "s":
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
                           dbus.Boolean(True), ignore_reply=True,
 
362
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
363
        elif key == "S":
 
364
            self.proxy.Set(client_interface, "CheckerRunning",
 
365
                           dbus.Boolean(False), ignore_reply=True,
 
366
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
367
        elif key == "C":
 
368
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
369
                                 ignore_reply=True)
224
370
        # xxx
225
 
#         elif key == u"p" or key == "=":
 
371
#         elif key == "p" or key == "=":
226
372
#             self.proxy.pause()
227
 
#         elif key == u"u" or key == ":":
 
373
#         elif key == "u" or key == ":":
228
374
#             self.proxy.unpause()
229
 
#         elif key == u"RET":
 
375
#         elif key == "RET":
230
376
#             self.open()
231
377
        else:
232
378
            return key
233
 
    
234
 
    def property_changed(self, property=None, value=None,
235
 
                         *args, **kwargs):
236
 
        """Call self.update() if old value is not new value.
 
379
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
381
        """Call self.update() if any properties changed.
237
382
        This overrides the method from MandosClientPropertyCache"""
238
 
        property_name = unicode(property)
239
 
        old_value = self.properties.get(property_name)
240
 
        super(MandosClientWidget, self).property_changed(
241
 
            property=property, value=value, *args, **kwargs)
242
 
        if self.properties.get(property_name) != old_value:
 
383
        old_values = {key: self.properties.get(key)
 
384
                      for key in properties.keys()}
 
385
        super(MandosClientWidget, self).properties_changed(
 
386
            interface, properties, invalidated)
 
387
        if any(old_values[key] != self.properties.get(key)
 
388
               for key in old_values):
243
389
            self.update()
244
390
 
245
391
 
 
392
def glib_safely(func, retval=True):
 
393
    def safe_func(*args, **kwargs):
 
394
        try:
 
395
            return func(*args, **kwargs)
 
396
        except Exception:
 
397
            log.exception("")
 
398
            return retval
 
399
    return safe_func
 
400
 
 
401
 
246
402
class ConstrainedListBox(urwid.ListBox):
247
403
    """Like a normal urwid.ListBox, but will consume all "up" or
248
404
    "down" key presses, thus not allowing any containing widgets to
249
405
    use them as an excuse to shift focus away from this widget.
250
406
    """
251
 
    def keypress(self, (maxcol, maxrow), key):
252
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
253
 
        if ret in (u"up", u"down"):
 
407
    def keypress(self, *args, **kwargs):
 
408
        ret = (super(ConstrainedListBox, self)
 
409
               .keypress(*args, **kwargs))
 
410
        if ret in ("up", "down"):
254
411
            return
255
412
        return ret
256
413
 
257
414
 
258
 
class UserInterface(object):
 
415
class UserInterface:
259
416
    """This is the entire user interface - the whole screen
260
417
    with boxes, lists of client widgets, etc.
261
418
    """
262
419
    def __init__(self, max_log_length=1000):
263
420
        DBusGMainLoop(set_as_default=True)
264
 
        
 
421
 
265
422
        self.screen = urwid.curses_display.Screen()
266
 
        
 
423
 
267
424
        self.screen.register_palette((
268
 
                (u"normal",
269
 
                 u"default", u"default", None),
270
 
                (u"bold",
271
 
                 u"default", u"default", u"bold"),
272
 
                (u"underline-blink",
273
 
                 u"default", u"default", u"underline"),
274
 
                (u"standout",
275
 
                 u"default", u"default", u"standout"),
276
 
                (u"bold-underline-blink",
277
 
                 u"default", u"default", (u"bold", u"underline")),
278
 
                (u"bold-standout",
279
 
                 u"default", u"default", (u"bold", u"standout")),
280
 
                (u"underline-blink-standout",
281
 
                 u"default", u"default", (u"underline", u"standout")),
282
 
                (u"bold-underline-blink-standout",
283
 
                 u"default", u"default", (u"bold", u"underline",
284
 
                                          u"standout")),
 
425
                ("normal",
 
426
                 "default", "default", None),
 
427
                ("bold",
 
428
                 "bold", "default", "bold"),
 
429
                ("underline-blink",
 
430
                 "underline,blink", "default", "underline,blink"),
 
431
                ("standout",
 
432
                 "standout", "default", "standout"),
 
433
                ("bold-underline-blink",
 
434
                 "bold,underline,blink", "default",
 
435
                 "bold,underline,blink"),
 
436
                ("bold-standout",
 
437
                 "bold,standout", "default", "bold,standout"),
 
438
                ("underline-blink-standout",
 
439
                 "underline,blink,standout", "default",
 
440
                 "underline,blink,standout"),
 
441
                ("bold-underline-blink-standout",
 
442
                 "bold,underline,blink,standout", "default",
 
443
                 "bold,underline,blink,standout"),
285
444
                ))
286
 
        
 
445
 
287
446
        if urwid.supports_unicode():
288
 
            self.divider = u"─" # \u2500
289
 
            #self.divider = u"━" # \u2501
 
447
            self.divider = "─"  # \u2500
290
448
        else:
291
 
            #self.divider = u"-" # \u002d
292
 
            self.divider = u"_" # \u005f
293
 
        
 
449
            self.divider = "_"  # \u005f
 
450
 
294
451
        self.screen.start()
295
 
        
 
452
 
296
453
        self.size = self.screen.get_cols_rows()
297
 
        
 
454
 
298
455
        self.clients = urwid.SimpleListWalker([])
299
456
        self.clients_dict = {}
300
 
        
 
457
 
301
458
        # We will add Text widgets to this list
302
 
        self.log = []
 
459
        self.log = urwid.SimpleListWalker([])
303
460
        self.max_log_length = max_log_length
304
 
        
 
461
 
305
462
        # We keep a reference to the log widget so we can remove it
306
463
        # from the ListWalker without it getting destroyed
307
464
        self.logbox = ConstrainedListBox(self.log)
308
 
        
 
465
 
309
466
        # This keeps track of whether self.uilist currently has
310
467
        # self.logbox in it or not
311
468
        self.log_visible = True
312
 
        self.log_wrap = u"any"
313
 
        
 
469
        self.log_wrap = "any"
 
470
 
 
471
        self.loghandler = UILogHandler(self)
 
472
 
314
473
        self.rebuild()
315
 
        self.log_message_raw((u"bold",
316
 
                              u"Mandos Monitor version " + version))
317
 
        self.log_message_raw((u"bold",
318
 
                              u"q: Quit  ?: Help"))
319
 
        
320
 
        self.busname = domain + '.Mandos'
321
 
        self.main_loop = gobject.MainLoop()
322
 
        self.bus = dbus.SystemBus()
323
 
        mandos_dbus_objc = self.bus.get_object(
324
 
            self.busname, u"/", follow_name_owner_changes=True)
325
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
326
 
                                          dbus_interface
327
 
                                          = server_interface)
328
 
        try:
329
 
            mandos_clients = (self.mandos_serv
330
 
                              .GetAllClientsWithProperties())
331
 
        except dbus.exceptions.DBusException:
332
 
            mandos_clients = dbus.Dictionary()
333
 
        
334
 
        (self.mandos_serv
335
 
         .connect_to_signal(u"ClientRemoved",
336
 
                            self.find_and_remove_client,
337
 
                            dbus_interface=server_interface,
338
 
                            byte_arrays=True))
339
 
        (self.mandos_serv
340
 
         .connect_to_signal(u"ClientAdded",
341
 
                            self.add_new_client,
342
 
                            dbus_interface=server_interface,
343
 
                            byte_arrays=True))
344
 
        (self.mandos_serv
345
 
         .connect_to_signal(u"ClientNotFound",
346
 
                            self.client_not_found,
347
 
                            dbus_interface=server_interface,
348
 
                            byte_arrays=True))
349
 
        for path, client in mandos_clients.iteritems():
350
 
            client_proxy_object = self.bus.get_object(self.busname,
351
 
                                                      path)
352
 
            self.add_client(MandosClientWidget(server_proxy_object
353
 
                                               =self.mandos_serv,
354
 
                                               proxy_object
355
 
                                               =client_proxy_object,
356
 
                                               properties=client,
357
 
                                               update_hook
358
 
                                               =self.refresh,
359
 
                                               delete_hook
360
 
                                               =self.remove_client,
361
 
                                               logger
362
 
                                               =self.log_message),
363
 
                            path=path)
364
 
    
365
 
    def client_not_found(self, fingerprint, address):
366
 
        self.log_message((u"Client with address %s and fingerprint %s"
367
 
                          u" could not be found" % (address,
368
 
                                                    fingerprint)))
369
 
    
 
474
        self.add_log_line(("bold",
 
475
                           "Mandos Monitor version " + version))
 
476
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
477
 
 
478
        self.busname = domain + ".Mandos"
 
479
        self.main_loop = GLib.MainLoop()
 
480
 
 
481
    def client_not_found(self, key_id, address):
 
482
        log.info("Client with address %s and key ID %s could"
 
483
                 " not be found", address, key_id)
 
484
 
370
485
    def rebuild(self):
371
486
        """This rebuilds the User Interface.
372
487
        Call this when the widget layout needs to change"""
373
488
        self.uilist = []
374
 
        #self.uilist.append(urwid.ListBox(self.clients))
375
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
376
 
                                       #header=urwid.Divider(),
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
491
                                                          clients),
 
492
                                       # header=urwid.Divider(),
377
493
                                       header=None,
378
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
494
                                       footer=urwid.Divider(
 
495
                                           div_char=self.divider)))
379
496
        if self.log_visible:
380
497
            self.uilist.append(self.logbox)
381
 
            pass
382
498
        self.topwidget = urwid.Pile(self.uilist)
383
 
    
384
 
    def log_message(self, message):
385
 
        timestamp = datetime.datetime.now().isoformat()
386
 
        self.log_message_raw(timestamp + u": " + message)
387
 
    
388
 
    def log_message_raw(self, markup):
389
 
        """Add a log message to the log buffer."""
 
499
 
 
500
    def add_log_line(self, markup):
390
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
391
 
        if (self.max_log_length
392
 
            and len(self.log) > self.max_log_length):
393
 
            del self.log[0:len(self.log)-self.max_log_length-1]
394
 
        self.logbox.set_focus(len(self.logbox.body.contents),
395
 
                              coming_from=u"above")
 
502
        if self.max_log_length:
 
503
            if len(self.log) > self.max_log_length:
 
504
                del self.log[0:(len(self.log) - self.max_log_length)]
 
505
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
506
                              coming_from="above")
396
507
        self.refresh()
397
 
    
 
508
 
398
509
    def toggle_log_display(self):
399
510
        """Toggle visibility of the log buffer."""
400
511
        self.log_visible = not self.log_visible
401
512
        self.rebuild()
402
 
        self.log_message(u"Log visibility changed to: "
403
 
                         + unicode(self.log_visible))
404
 
    
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
514
 
405
515
    def change_log_display(self):
406
516
        """Change type of log display.
407
517
        Currently, this toggles wrapping of text lines."""
408
 
        if self.log_wrap == u"clip":
409
 
            self.log_wrap = u"any"
 
518
        if self.log_wrap == "clip":
 
519
            self.log_wrap = "any"
410
520
        else:
411
 
            self.log_wrap = u"clip"
 
521
            self.log_wrap = "clip"
412
522
        for textwidget in self.log:
413
523
            textwidget.set_wrap_mode(self.log_wrap)
414
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
415
 
    
416
 
    def find_and_remove_client(self, path, name):
417
 
        """Find an client from its object path and remove it.
418
 
        
419
 
        This is connected to the ClientRemoved signal from the
 
524
        log.debug("Wrap mode: %s", self.log_wrap)
 
525
 
 
526
    def find_and_remove_client(self, path, interfaces):
 
527
        """Find a client by its object path and remove it.
 
528
 
 
529
        This is connected to the InterfacesRemoved signal from the
420
530
        Mandos server object."""
 
531
        if client_interface not in interfaces:
 
532
            # Not a Mandos client object; ignore
 
533
            return
421
534
        try:
422
535
            client = self.clients_dict[path]
423
536
        except KeyError:
424
537
            # not found?
425
 
            return
426
 
        self.remove_client(client, path)
427
 
    
428
 
    def add_new_client(self, path):
 
538
            log.warning("Unknown client %s removed", path)
 
539
            return
 
540
        client.delete()
 
541
 
 
542
    def add_new_client(self, path, ifs_and_props):
 
543
        """Find a client by its object path and remove it.
 
544
 
 
545
        This is connected to the InterfacesAdded signal from the
 
546
        Mandos server object.
 
547
        """
 
548
        if client_interface not in ifs_and_props:
 
549
            # Not a Mandos client object; ignore
 
550
            return
429
551
        client_proxy_object = self.bus.get_object(self.busname, path)
430
 
        self.add_client(MandosClientWidget(server_proxy_object
431
 
                                           =self.mandos_serv,
432
 
                                           proxy_object
433
 
                                           =client_proxy_object,
434
 
                                           update_hook
435
 
                                           =self.refresh,
436
 
                                           delete_hook
437
 
                                           =self.remove_client,
438
 
                                           logger
439
 
                                           =self.log_message),
 
552
        self.add_client(MandosClientWidget(
 
553
            server_proxy_object=self.mandos_serv,
 
554
            proxy_object=client_proxy_object,
 
555
            update_hook=self.refresh,
 
556
            delete_hook=self.remove_client,
 
557
            properties=dict(ifs_and_props[client_interface])),
440
558
                        path=path)
441
 
    
 
559
 
442
560
    def add_client(self, client, path=None):
443
561
        self.clients.append(client)
444
562
        if path is None:
445
563
            path = client.proxy.object_path
446
564
        self.clients_dict[path] = client
447
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
448
566
        self.refresh()
449
 
    
 
567
 
450
568
    def remove_client(self, client, path=None):
451
569
        self.clients.remove(client)
452
570
        if path is None:
453
571
            path = client.proxy.object_path
454
572
        del self.clients_dict[path]
455
 
        if not self.clients_dict:
456
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
457
 
            # is completely emptied, we need to recreate it.
458
 
            self.clients = urwid.SimpleListWalker([])
459
 
            self.rebuild()
460
573
        self.refresh()
461
 
    
 
574
 
462
575
    def refresh(self):
463
576
        """Redraw the screen"""
464
577
        canvas = self.topwidget.render(self.size, focus=True)
465
578
        self.screen.draw_screen(self.size, canvas)
466
 
    
 
579
 
467
580
    def run(self):
468
581
        """Start the main loop and exit when it's done."""
 
582
        log.addHandler(self.loghandler)
 
583
        self.orig_log_propagate = log.propagate
 
584
        log.propagate = False
 
585
        self.orig_log_level = log.level
 
586
        log.setLevel("INFO")
 
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
                log.warning("Note: Server has no clients.")
 
597
        except dbus.exceptions.DBusException:
 
598
            log.warning("Note: No Mandos server running.")
 
599
            mandos_clients = dbus.Dictionary()
 
600
 
 
601
        (self.mandos_serv
 
602
         .connect_to_signal("InterfacesRemoved",
 
603
                            self.find_and_remove_client,
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
605
                            byte_arrays=True))
 
606
        (self.mandos_serv
 
607
         .connect_to_signal("InterfacesAdded",
 
608
                            self.add_new_client,
 
609
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
610
                            byte_arrays=True))
 
611
        (self.mandos_serv
 
612
         .connect_to_signal("ClientNotFound",
 
613
                            self.client_not_found,
 
614
                            dbus_interface=server_interface,
 
615
                            byte_arrays=True))
 
616
        for path, client in mandos_clients.items():
 
617
            client_proxy_object = self.bus.get_object(self.busname,
 
618
                                                      path)
 
619
            self.add_client(MandosClientWidget(
 
620
                server_proxy_object=self.mandos_serv,
 
621
                proxy_object=client_proxy_object,
 
622
                properties=client,
 
623
                update_hook=self.refresh,
 
624
                delete_hook=self.remove_client),
 
625
                            path=path)
 
626
 
469
627
        self.refresh()
470
 
        self._input_callback_tag = (gobject.io_add_watch
471
 
                                    (sys.stdin.fileno(),
472
 
                                     gobject.IO_IN,
473
 
                                     self.process_input))
 
628
        self._input_callback_tag = (
 
629
            GLib.io_add_watch(
 
630
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
                glib_safely(self.process_input)))
474
633
        self.main_loop.run()
475
634
        # Main loop has finished, we should close everything now
476
 
        gobject.source_remove(self._input_callback_tag)
477
 
        self.screen.stop()
478
 
    
 
635
        GLib.source_remove(self._input_callback_tag)
 
636
        with warnings.catch_warnings():
 
637
            warnings.simplefilter("ignore", BytesWarning)
 
638
            self.screen.stop()
 
639
 
479
640
    def stop(self):
480
641
        self.main_loop.quit()
481
 
    
 
642
        log.removeHandler(self.loghandler)
 
643
        log.propagate = self.orig_log_propagate
 
644
 
482
645
    def process_input(self, source, condition):
483
646
        keys = self.screen.get_input()
484
 
        translations = { u"ctrl n": u"down",      # Emacs
485
 
                         u"ctrl p": u"up",        # Emacs
486
 
                         u"ctrl v": u"page down", # Emacs
487
 
                         u"meta v": u"page up",   # Emacs
488
 
                         u" ": u"page down",      # less
489
 
                         u"f": u"page down",      # less
490
 
                         u"b": u"page up",        # less
491
 
                         u"j": u"down",           # vi
492
 
                         u"k": u"up",             # vi
493
 
                         }
 
647
        translations = {"ctrl n": "down",       # Emacs
 
648
                        "ctrl p": "up",         # Emacs
 
649
                        "ctrl v": "page down",  # Emacs
 
650
                        "meta v": "page up",    # Emacs
 
651
                        " ": "page down",       # less
 
652
                        "f": "page down",       # less
 
653
                        "b": "page up",         # less
 
654
                        "j": "down",            # vi
 
655
                        "k": "up",              # vi
 
656
                        }
494
657
        for key in keys:
495
658
            try:
496
659
                key = translations[key]
497
660
            except KeyError:    # :-)
498
661
                pass
499
 
            
500
 
            if key == u"q" or key == u"Q":
 
662
 
 
663
            if key == "q" or key == "Q":
501
664
                self.stop()
502
665
                break
503
 
            elif key == u"window resize":
 
666
            elif key == "window resize":
504
667
                self.size = self.screen.get_cols_rows()
505
668
                self.refresh()
506
 
            elif key == u"\f":  # Ctrl-L
 
669
            elif key == "ctrl l":
 
670
                self.screen.clear()
507
671
                self.refresh()
508
 
            elif key == u"l" or key == u"D":
 
672
            elif key == "l" or key == "D":
509
673
                self.toggle_log_display()
510
674
                self.refresh()
511
 
            elif key == u"w" or key == u"i":
 
675
            elif key == "w" or key == "i":
512
676
                self.change_log_display()
513
677
                self.refresh()
514
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
678
            elif key == "?" or key == "f1" or key == "esc":
515
679
                if not self.log_visible:
516
680
                    self.log_visible = True
517
681
                    self.rebuild()
518
 
                self.log_message_raw((u"bold",
519
 
                                      u"  ".
520
 
                                      join((u"q: Quit",
521
 
                                            u"?: Help",
522
 
                                            u"l: Log window toggle",
523
 
                                            u"TAB: Switch window",
524
 
                                            u"w: Wrap (log)"))))
525
 
                self.log_message_raw((u"bold",
526
 
                                      u"  "
527
 
                                      .join((u"Clients:",
528
 
                                             u"e: Enable",
529
 
                                             u"d: Disable",
530
 
                                             u"r: Remove",
531
 
                                             u"s: Start new checker",
532
 
                                             u"S: Stop checker",
533
 
                                             u"C: Checker OK"))))
 
682
                self.add_log_line(("bold",
 
683
                                   "  ".join(("q: Quit",
 
684
                                              "?: Help",
 
685
                                              "l: Log window toggle",
 
686
                                              "TAB: Switch window",
 
687
                                              "w: Wrap (log lines)",
 
688
                                              "v: Toggle verbose log",
 
689
                                   ))))
 
690
                self.add_log_line(("bold",
 
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",
 
700
                                   ))))
534
701
                self.refresh()
535
 
            elif key == u"tab":
 
702
            elif key == "tab":
536
703
                if self.topwidget.get_focus() is self.logbox:
537
704
                    self.topwidget.set_focus(0)
538
705
                else:
539
706
                    self.topwidget.set_focus(self.logbox)
540
707
                self.refresh()
541
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
542
 
            #      or key == u">"):
543
 
            #    pass            # xxx end-of-buffer
544
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
545
 
            #      or key == u"<"):
546
 
            #    pass            # xxx beginning-of-buffer
547
 
            #elif key == u"ctrl e" or key == u"$":
548
 
            #    pass            # xxx move-end-of-line
549
 
            #elif key == u"ctrl a" or key == u"^":
550
 
            #    pass            # xxx move-beginning-of-line
551
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
552
 
            #    pass            # xxx left
553
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
554
 
            #    pass            # xxx right
555
 
            #elif key == u"a":
556
 
            #    pass            # scroll up log
557
 
            #elif key == u"z":
558
 
            #    pass            # scroll down log
 
708
            elif key == "v":
 
709
                if log.level < logging.INFO:
 
710
                    log.setLevel(logging.INFO)
 
711
                    log.info("Verbose mode: Off")
 
712
                else:
 
713
                    log.setLevel(logging.NOTSET)
 
714
                    log.info("Verbose mode: On")
 
715
            # elif (key == "end" or key == "meta >" or key == "G"
 
716
            #       or key == ">"):
 
717
            #     pass            # xxx end-of-buffer
 
718
            # elif (key == "home" or key == "meta <" or key == "g"
 
719
            #       or key == "<"):
 
720
            #     pass            # xxx beginning-of-buffer
 
721
            # elif key == "ctrl e" or key == "$":
 
722
            #     pass            # xxx move-end-of-line
 
723
            # elif key == "ctrl a" or key == "^":
 
724
            #     pass            # xxx move-beginning-of-line
 
725
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
726
            #     pass            # xxx left
 
727
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
728
            #     pass            # xxx right
 
729
            # elif key == "a":
 
730
            #     pass            # scroll up log
 
731
            # elif key == "z":
 
732
            #     pass            # scroll down log
559
733
            elif self.topwidget.selectable():
560
734
                self.topwidget.keypress(self.size, key)
561
735
                self.refresh()
562
736
        return True
563
737
 
 
738
 
 
739
class UILogHandler(logging.Handler):
 
740
    def __init__(self, ui, *args, **kwargs):
 
741
        self.ui = ui
 
742
        super(UILogHandler, self).__init__(*args, **kwargs)
 
743
        self.setFormatter(
 
744
            logging.Formatter("%(asctime)s: %(message)s"))
 
745
    def emit(self, record):
 
746
        msg = self.format(record)
 
747
        if record.levelno > logging.INFO:
 
748
            msg = ("bold", msg)
 
749
        self.ui.add_log_line(msg)
 
750
 
 
751
 
564
752
ui = UserInterface()
565
753
try:
566
754
    ui.run()
567
 
except Exception, e:
568
 
    ui.log_message(unicode(e))
569
 
    ui.screen.stop()
 
755
except KeyboardInterrupt:
 
756
    with warnings.catch_warnings():
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
758
        ui.screen.stop()
 
759
except Exception:
 
760
    with warnings.catch_warnings():
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)
 
762
        ui.screen.stop()
570
763
    raise