1
 
#!/usr/bin/python3 -bbI
 
2
2
# -*- mode: python; coding: utf-8 -*-
 
4
4
# Mandos Monitor - Control and monitor the Mandos server
 
6
 
# Copyright © 2009-2019 Teddy Hogeborn
 
7
 
# Copyright © 2009-2019 Björn Påhlsson
 
9
 
# This file is part of Mandos.
 
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
 
 
6
# Copyright © 2009-2011 Teddy Hogeborn
 
 
7
# Copyright © 2009-2011 Björn Påhlsson
 
 
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.
 
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.
 
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/>.
 
24
 
# Contact the authors at <mandos@recompile.se>.
 
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
22
# Contact the authors at <mandos@fukt.bsnet.se>.
 
27
25
from __future__ import (division, absolute_import, print_function,
 
30
 
    from future_builtins import *
 
41
34
import urwid.curses_display
 
44
37
from dbus.mainloop.glib import DBusGMainLoop
 
45
 
from gi.repository import GLib
 
49
 
if sys.version_info.major == 2:
 
53
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
54
 
logging.basicConfig(level="NOTSET", # Show all messages
 
55
 
                    format="%(message)s") # Show basic log messages
 
57
 
logging.captureWarnings(True)   # Show warnings via the logging system
 
59
 
locale.setlocale(locale.LC_ALL, "")
 
61
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
 
46
locale.setlocale(locale.LC_ALL, '')
 
 
49
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
63
51
# Some useful constants
 
64
 
domain = "se.recompile"
 
65
 
server_interface = domain + ".Mandos"
 
66
 
client_interface = domain + ".Mandos.Client"
 
70
 
    dbus.OBJECT_MANAGER_IFACE
 
71
 
except AttributeError:
 
72
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
 
52
domain = 'se.bsnet.fukt'
 
 
53
server_interface = domain + '.Mandos'
 
 
54
client_interface = domain + '.Mandos.Client'
 
 
57
# Always run in monochrome mode
 
 
58
urwid.curses_display.curses.has_colors = lambda : False
 
 
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)
 
75
65
def isoformat_to_datetime(iso):
 
76
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
88
 
                             int(second),            # Whole seconds
 
89
 
                             int(fraction*1000000))  # Microseconds
 
92
 
class MandosClientPropertyCache:
 
 
78
                             int(second),           # Whole seconds
 
 
79
                             int(fraction*1000000)) # Microseconds
 
 
81
class MandosClientPropertyCache(object):
 
93
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
 
94
83
    properties and calls a hook function when any of them are
 
97
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
98
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
99
 
        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
 
 
89
        self.properties = dict()
 
100
90
        self.property_changed_match = (
 
101
 
            self.proxy.connect_to_signal("PropertiesChanged",
 
102
 
                                         self.properties_changed,
 
103
 
                                         dbus.PROPERTIES_IFACE,
 
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
 
92
                                         self.property_changed,
 
104
94
                                         byte_arrays=True))
 
106
 
        if properties is None:
 
107
 
            self.properties.update(self.proxy.GetAll(
 
109
 
                dbus_interface=dbus.PROPERTIES_IFACE))
 
111
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
113
 
    def properties_changed(self, interface, properties, invalidated):
 
114
 
        """This is called whenever we get a PropertiesChanged signal
 
115
 
        It updates the changed properties in the "properties" dict.
 
 
96
        self.properties.update(
 
 
97
            self.proxy.GetAll(client_interface,
 
 
98
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
100
        #XXX This breaks good super behaviour
 
 
101
#        super(MandosClientPropertyCache, self).__init__(
 
 
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.
 
117
108
        # Update properties dict with new value
 
118
 
        if interface == client_interface:
 
119
 
            self.properties.update(properties)
 
 
109
        self.properties[property] = value
 
 
111
    def delete(self, *args, **kwargs):
 
122
112
        self.property_changed_match.remove()
 
 
113
        super(MandosClientPropertyCache, self).__init__(
 
125
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
126
118
    """A Mandos Client which is visible on the screen.
 
129
121
    def __init__(self, server_proxy_object=None, update_hook=None,
 
130
 
                 delete_hook=None, **kwargs):
 
 
122
                 delete_hook=None, logger=None, *args, **kwargs):
 
131
123
        # Called on update
 
132
124
        self.update_hook = update_hook
 
133
125
        # Called on delete
 
134
126
        self.delete_hook = delete_hook
 
135
127
        # Mandos Server proxy object
 
136
128
        self.server_proxy_object = server_proxy_object
 
138
132
        self._update_timer_callback_tag = None
 
 
133
        self._update_timer_callback_lock = 0
 
 
134
        self.last_checker_failed = False
 
140
136
        # The widget shown normally
 
141
137
        self._text_widget = urwid.Text("")
 
142
138
        # The widget shown when we have focus
 
143
139
        self._focus_text_widget = urwid.Text("")
 
144
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
140
        super(MandosClientWidget, self).__init__(
 
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
146
144
        self.opened = False
 
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
148
        if last_checked_ok is None:
 
 
149
            self.last_checker_failed = True
 
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
158
        if self.last_checker_failed:
 
 
159
            self.using_timer(True)
 
 
161
        if self.need_approval:
 
 
162
            self.using_timer(True)
 
148
164
        self.match_objects = (
 
149
165
            self.proxy.connect_to_signal("CheckerCompleted",
 
150
166
                                         self.checker_completed,
 
 
167
183
                                         client_interface,
 
168
184
                                         byte_arrays=True))
 
169
 
        log.debug("Created client %s", self.properties["Name"])
 
 
185
        #self.logger('Created client %s' % (self.properties["Name"]))
 
 
187
    def property_changed(self, property=None, value=None):
 
 
188
        super(self, MandosClientWidget).property_changed(property,
 
 
190
        if property == "ApprovalPending":
 
 
191
            using_timer(bool(value))
 
171
193
    def using_timer(self, flag):
 
172
194
        """Call this method with True or False when timer should be
 
173
195
        activated or deactivated.
 
175
 
        if flag and self._update_timer_callback_tag is None:
 
 
197
        old = self._update_timer_callback_lock
 
 
199
            self._update_timer_callback_lock += 1
 
 
201
            self._update_timer_callback_lock -= 1
 
 
202
        if old == 0 and self._update_timer_callback_lock:
 
176
203
            # Will update the shown timer value every second
 
177
 
            self._update_timer_callback_tag = (
 
178
 
                GLib.timeout_add(1000,
 
179
 
                                 glib_safely(self.update_timer)))
 
180
 
        elif not (flag or self._update_timer_callback_tag is None):
 
181
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
204
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
207
        elif old and self._update_timer_callback_lock == 0:
 
 
208
            gobject.source_remove(self._update_timer_callback_tag)
 
182
209
            self._update_timer_callback_tag = None
 
184
211
    def checker_completed(self, exitstatus, condition, command):
 
185
212
        if exitstatus == 0:
 
186
 
            log.debug('Checker for client %s (command "%s")'
 
187
 
                      " 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")'
 
 
218
            #            % (self.properties["Name"], command))
 
 
222
        if not self.last_checker_failed:
 
 
223
            self.last_checker_failed = True
 
 
224
            self.using_timer(True)
 
191
225
        if os.WIFEXITED(condition):
 
192
 
            log.info('Checker for client %s (command "%s") failed'
 
193
 
                     " with exit code %d", self.properties["Name"],
 
194
 
                     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)))
 
195
230
        elif os.WIFSIGNALED(condition):
 
196
 
            log.info('Checker for client %s (command "%s") was'
 
197
 
                     " killed by signal %d", self.properties["Name"],
 
198
 
                     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")'
 
 
238
                        % (self.properties["Name"], command))
 
 
240
            self.logger('Checker for client %s completed'
 
201
244
    def checker_started(self, command):
 
202
 
        """Server signals that a checker started."""
 
203
 
        log.debug('Client %s started checker "%s"',
 
204
 
                  self.properties["Name"], command)
 
 
245
        #self.logger('Client %s started checker "%s"'
 
 
246
        #            % (self.properties["Name"], unicode(command)))
 
206
249
    def got_secret(self):
 
207
 
        log.info("Client %s received its secret",
 
208
 
                 self.properties["Name"])
 
 
250
        self.last_checker_failed = False
 
 
251
        self.logger('Client %s received its secret'
 
 
252
                    % self.properties["Name"])
 
210
254
    def need_approval(self, timeout, default):
 
212
 
            message = "Client %s needs approval within %f seconds"
 
 
256
            message = 'Client %s needs approval within %s seconds'
 
214
 
            message = "Client %s will get its secret in %f seconds"
 
215
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
258
            message = 'Client %s will get its secret in %s seconds'
 
 
260
                    % (self.properties["Name"], timeout/1000))
 
 
261
        self.using_timer(True)
 
217
263
    def rejected(self, reason):
 
218
 
        log.info("Client %s was rejected; reason: %s",
 
219
 
                 self.properties["Name"], reason)
 
 
264
        self.logger('Client %s was rejected; reason: %s'
 
 
265
                    % (self.properties["Name"], reason))
 
221
267
    def selectable(self):
 
222
268
        """Make this a "selectable" widget.
 
223
269
        This overrides the method from urwid.FlowWidget."""
 
226
272
    def rows(self, maxcolrow, focus=False):
 
227
273
        """How many rows this widget will occupy might depend on
 
228
274
        whether we have focus or not.
 
229
275
        This overrides the method from urwid.FlowWidget"""
 
230
276
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
232
278
    def current_widget(self, focus=False):
 
233
279
        if focus or self.opened:
 
234
280
            return self._focus_widget
 
235
281
        return self._widget
 
237
283
    def update(self):
 
238
284
        "Called when what is visible on the screen should be updated."
 
239
285
        # How to add standout mode to a style
 
240
 
        with_standout = {"normal": "standout",
 
241
 
                         "bold": "bold-standout",
 
243
 
                         "underline-blink-standout",
 
244
 
                         "bold-underline-blink":
 
245
 
                         "bold-underline-blink-standout",
 
 
286
        with_standout = { "normal": "standout",
 
 
287
                          "bold": "bold-standout",
 
 
289
                              "underline-blink-standout",
 
 
290
                          "bold-underline-blink":
 
 
291
                              "bold-underline-blink-standout",
 
248
294
        # Rebuild focus and non-focus widgets using current properties
 
250
296
        # Base part of a client. Name!
 
251
 
        base = "{name}: ".format(name=self.properties["Name"])
 
 
298
                      % {"name": self.properties["Name"]})
 
252
299
        if not self.properties["Enabled"]:
 
253
300
            message = "DISABLED"
 
254
 
            self.using_timer(False)
 
255
301
        elif self.properties["ApprovalPending"]:
 
256
 
            timeout = datetime.timedelta(
 
257
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
302
            timeout = datetime.timedelta(milliseconds
 
258
305
            last_approval_request = isoformat_to_datetime(
 
259
306
                self.properties["LastApprovalRequest"])
 
260
307
            if last_approval_request is not None:
 
261
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
262
 
                                       - last_approval_request),
 
263
 
                            datetime.timedelta())
 
 
308
                timer = timeout - (datetime.datetime.utcnow()
 
 
309
                                   - last_approval_request)
 
265
311
                timer = datetime.timedelta()
 
266
312
            if self.properties["ApprovedByDefault"]:
 
267
 
                message = "Approval in {}. (d)eny?"
 
 
313
                message = "Approval in %s. (d)eny?"
 
269
 
                message = "Denial in {}. (a)pprove?"
 
270
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
271
 
            self.using_timer(True)
 
272
 
        elif self.properties["LastCheckerStatus"] != 0:
 
273
 
            # When checker has failed, show timer until client expires
 
 
315
                message = "Denial in %s. (a)pprove?"
 
 
316
            message = message % unicode(timer).rsplit(".", 1)[0]
 
 
317
        elif self.last_checker_failed:
 
 
318
            # When checker has failed, print a timer until client expires
 
274
319
            expires = self.properties["Expires"]
 
275
320
            if expires == "":
 
276
321
                timer = datetime.timedelta(0)
 
278
 
                expires = (datetime.datetime.strptime
 
279
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
280
 
                timer = max(expires - datetime.datetime.utcnow(),
 
281
 
                            datetime.timedelta())
 
282
 
            message = ("A checker has failed! Time until client"
 
284
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
285
 
            self.using_timer(True)
 
 
323
                expires = datetime.datetime.strptime(expires,
 
 
324
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
 
325
                timer = expires - datetime.datetime.utcnow()
 
 
326
            message = ('A checker has failed! Time until client'
 
 
328
                           % unicode(timer).rsplit(".", 1)[0])
 
287
330
            message = "enabled"
 
288
 
            self.using_timer(False)
 
289
 
        self._text = "{}{}".format(base, message)
 
 
331
        self._text = "%s%s" % (base, message)
 
291
333
        if not urwid.supports_unicode():
 
292
334
            self._text = self._text.encode("ascii", "replace")
 
293
335
        textlist = [("normal", self._text)]
 
 
303
345
        # Run update hook, if any
 
304
346
        if self.update_hook is not None:
 
305
347
            self.update_hook()
 
307
349
    def update_timer(self):
 
308
 
        """called by GLib. Will indefinitely loop until
 
309
 
        GLib.source_remove() on tag is called
 
 
350
        """called by gobject. Will indefinitely loop until
 
 
351
        gobject.source_remove() on tag is called"""
 
312
353
        return True             # Keep calling this
 
314
 
    def delete(self, **kwargs):
 
 
355
    def delete(self, *args, **kwargs):
 
315
356
        if self._update_timer_callback_tag is not None:
 
316
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
357
            gobject.source_remove(self._update_timer_callback_tag)
 
317
358
            self._update_timer_callback_tag = None
 
318
359
        for match in self.match_objects:
 
320
361
        self.match_objects = ()
 
321
362
        if self.delete_hook is not None:
 
322
363
            self.delete_hook(self)
 
323
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
364
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
325
366
    def render(self, maxcolrow, focus=False):
 
326
367
        """Render differently if we have focus.
 
327
368
        This overrides the method from urwid.FlowWidget"""
 
328
369
        return self.current_widget(focus).render(maxcolrow,
 
331
372
    def keypress(self, maxcolrow, key):
 
333
374
        This overrides the method from urwid.FlowWidget"""
 
335
 
            self.proxy.Set(client_interface, "Enabled",
 
336
 
                           dbus.Boolean(True), ignore_reply=True,
 
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
376
            self.proxy.Enable(dbus_interface = client_interface,
 
339
 
            self.proxy.Set(client_interface, "Enabled", False,
 
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
379
            self.proxy.Disable(dbus_interface = client_interface,
 
343
382
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
344
 
                               dbus_interface=client_interface,
 
 
383
                               dbus_interface = client_interface,
 
345
384
                               ignore_reply=True)
 
347
386
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
348
 
                               dbus_interface=client_interface,
 
 
387
                                  dbus_interface = client_interface,
 
349
388
                               ignore_reply=True)
 
350
389
        elif key == "R" or key == "_" or key == "ctrl k":
 
351
390
            self.server_proxy_object.RemoveClient(self.proxy
 
353
392
                                                  ignore_reply=True)
 
355
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
356
 
                           dbus.Boolean(True), ignore_reply=True,
 
357
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
394
            self.proxy.StartChecker(dbus_interface = client_interface,
 
359
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
360
 
                           dbus.Boolean(False), ignore_reply=True,
 
361
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
397
            self.proxy.StopChecker(dbus_interface = client_interface,
 
363
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
400
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
364
401
                                 ignore_reply=True)
 
366
403
#         elif key == "p" or key == "=":
 
 
375
 
    def properties_changed(self, interface, properties, invalidated):
 
376
 
        """Call self.update() if any properties changed.
 
 
412
    def property_changed(self, property=None, value=None,
 
 
414
        """Call self.update() if old value is not new value.
 
377
415
        This overrides the method from MandosClientPropertyCache"""
 
378
 
        old_values = {key: self.properties.get(key)
 
379
 
                      for key in properties.keys()}
 
380
 
        super(MandosClientWidget, self).properties_changed(
 
381
 
            interface, properties, invalidated)
 
382
 
        if any(old_values[key] != self.properties.get(key)
 
383
 
               for key in old_values):
 
 
416
        property_name = unicode(property)
 
 
417
        old_value = self.properties.get(property_name)
 
 
418
        super(MandosClientWidget, self).property_changed(
 
 
419
            property=property, value=value, *args, **kwargs)
 
 
420
        if self.properties.get(property_name) != old_value:
 
387
 
def glib_safely(func, retval=True):
 
388
 
    def safe_func(*args, **kwargs):
 
390
 
            return func(*args, **kwargs)
 
397
424
class ConstrainedListBox(urwid.ListBox):
 
398
425
    """Like a normal urwid.ListBox, but will consume all "up" or
 
399
426
    "down" key presses, thus not allowing any containing widgets to
 
400
427
    use them as an excuse to shift focus away from this widget.
 
402
 
    def keypress(self, *args, **kwargs):
 
403
 
        ret = (super(ConstrainedListBox, self)
 
404
 
               .keypress(*args, **kwargs))
 
 
429
    def keypress(self, maxcolrow, key):
 
 
430
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
405
431
        if ret in ("up", "down"):
 
 
436
class UserInterface(object):
 
411
437
    """This is the entire user interface - the whole screen
 
412
438
    with boxes, lists of client widgets, etc.
 
414
440
    def __init__(self, max_log_length=1000):
 
415
441
        DBusGMainLoop(set_as_default=True)
 
417
443
        self.screen = urwid.curses_display.Screen()
 
419
445
        self.screen.register_palette((
 
421
447
                 "default", "default", None),
 
423
 
                 "bold", "default", "bold"),
 
 
449
                 "default", "default", "bold"),
 
424
450
                ("underline-blink",
 
425
 
                 "underline,blink", "default", "underline,blink"),
 
 
451
                 "default", "default", "underline"),
 
427
 
                 "standout", "default", "standout"),
 
 
453
                 "default", "default", "standout"),
 
428
454
                ("bold-underline-blink",
 
429
 
                 "bold,underline,blink", "default",
 
430
 
                 "bold,underline,blink"),
 
 
455
                 "default", "default", ("bold", "underline")),
 
431
456
                ("bold-standout",
 
432
 
                 "bold,standout", "default", "bold,standout"),
 
 
457
                 "default", "default", ("bold", "standout")),
 
433
458
                ("underline-blink-standout",
 
434
 
                 "underline,blink,standout", "default",
 
435
 
                 "underline,blink,standout"),
 
 
459
                 "default", "default", ("underline", "standout")),
 
436
460
                ("bold-underline-blink-standout",
 
437
 
                 "bold,underline,blink,standout", "default",
 
438
 
                 "bold,underline,blink,standout"),
 
 
461
                 "default", "default", ("bold", "underline",
 
441
465
        if urwid.supports_unicode():
 
442
 
            self.divider = "─"  # \u2500
 
 
466
            self.divider = "─" # \u2500
 
 
467
            #self.divider = "━" # \u2501
 
444
 
            self.divider = "_"  # \u005f
 
 
469
            #self.divider = "-" # \u002d
 
 
470
            self.divider = "_" # \u005f
 
446
472
        self.screen.start()
 
448
474
        self.size = self.screen.get_cols_rows()
 
450
476
        self.clients = urwid.SimpleListWalker([])
 
451
477
        self.clients_dict = {}
 
453
479
        # We will add Text widgets to this list
 
454
 
        self.log = urwid.SimpleListWalker([])
 
455
481
        self.max_log_length = max_log_length
 
457
483
        # We keep a reference to the log widget so we can remove it
 
458
484
        # from the ListWalker without it getting destroyed
 
459
485
        self.logbox = ConstrainedListBox(self.log)
 
461
487
        # This keeps track of whether self.uilist currently has
 
462
488
        # self.logbox in it or not
 
463
489
        self.log_visible = True
 
464
490
        self.log_wrap = "any"
 
466
 
        self.loghandler = UILogHandler(self)
 
469
 
        self.add_log_line(("bold",
 
470
 
                           "Mandos Monitor version " + version))
 
471
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
473
 
        self.busname = domain + ".Mandos"
 
474
 
        self.main_loop = GLib.MainLoop()
 
476
 
    def client_not_found(self, key_id, address):
 
477
 
        log.info("Client with address %s and key ID %s could"
 
478
 
                 " not be found", address, key_id)
 
 
493
        self.log_message_raw(("bold",
 
 
494
                              "Mandos Monitor version " + version))
 
 
495
        self.log_message_raw(("bold",
 
 
498
        self.busname = domain + '.Mandos'
 
 
499
        self.main_loop = gobject.MainLoop()
 
 
500
        self.bus = dbus.SystemBus()
 
 
501
        mandos_dbus_objc = self.bus.get_object(
 
 
502
            self.busname, "/", follow_name_owner_changes=True)
 
 
503
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
507
            mandos_clients = (self.mandos_serv
 
 
508
                              .GetAllClientsWithProperties())
 
 
509
        except dbus.exceptions.DBusException:
 
 
510
            mandos_clients = dbus.Dictionary()
 
 
513
         .connect_to_signal("ClientRemoved",
 
 
514
                            self.find_and_remove_client,
 
 
515
                            dbus_interface=server_interface,
 
 
518
         .connect_to_signal("ClientAdded",
 
 
520
                            dbus_interface=server_interface,
 
 
523
         .connect_to_signal("ClientNotFound",
 
 
524
                            self.client_not_found,
 
 
525
                            dbus_interface=server_interface,
 
 
527
        for path, client in mandos_clients.iteritems():
 
 
528
            client_proxy_object = self.bus.get_object(self.busname,
 
 
530
            self.add_client(MandosClientWidget(server_proxy_object
 
 
533
                                               =client_proxy_object,
 
 
543
    def client_not_found(self, fingerprint, address):
 
 
544
        self.log_message(("Client with address %s and fingerprint %s"
 
 
545
                          " could not be found" % (address,
 
480
548
    def rebuild(self):
 
481
549
        """This rebuilds the User Interface.
 
482
550
        Call this when the widget layout needs to change"""
 
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
552
        #self.uilist.append(urwid.ListBox(self.clients))
 
485
553
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
487
 
                                       # header=urwid.Divider(),
 
 
555
                                       #header=urwid.Divider(),
 
489
 
                                       footer=urwid.Divider(
 
490
 
                                           div_char=self.divider)))
 
 
558
                                       urwid.Divider(div_char=
 
491
560
        if self.log_visible:
 
492
561
            self.uilist.append(self.logbox)
 
493
563
        self.topwidget = urwid.Pile(self.uilist)
 
495
 
    def add_log_line(self, markup):
 
 
565
    def log_message(self, message):
 
 
566
        timestamp = datetime.datetime.now().isoformat()
 
 
567
        self.log_message_raw(timestamp + ": " + message)
 
 
569
    def log_message_raw(self, markup):
 
 
570
        """Add a log message to the log buffer."""
 
496
571
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
497
 
        if self.max_log_length:
 
498
 
            if len(self.log) > self.max_log_length:
 
499
 
                del self.log[0:(len(self.log) - self.max_log_length)]
 
500
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
 
572
        if (self.max_log_length
 
 
573
            and len(self.log) > self.max_log_length):
 
 
574
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
575
        self.logbox.set_focus(len(self.logbox.body.contents),
 
501
576
                              coming_from="above")
 
504
579
    def toggle_log_display(self):
 
505
580
        """Toggle visibility of the log buffer."""
 
506
581
        self.log_visible = not self.log_visible
 
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
583
        #self.log_message("Log visibility changed to: "
 
 
584
        #                 + unicode(self.log_visible))
 
510
586
    def change_log_display(self):
 
511
587
        """Change type of log display.
 
512
588
        Currently, this toggles wrapping of text lines."""
 
 
516
592
            self.log_wrap = "clip"
 
517
593
        for textwidget in self.log:
 
518
594
            textwidget.set_wrap_mode(self.log_wrap)
 
519
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
521
 
    def find_and_remove_client(self, path, interfaces):
 
 
595
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
597
    def find_and_remove_client(self, path, name):
 
522
598
        """Find a client by its object path and remove it.
 
524
 
        This is connected to the InterfacesRemoved signal from the
 
 
600
        This is connected to the ClientRemoved signal from the
 
525
601
        Mandos server object."""
 
526
 
        if client_interface not in interfaces:
 
527
 
            # Not a Mandos client object; ignore
 
530
603
            client = self.clients_dict[path]
 
533
 
            log.warning("Unknown client %s removed", path)
 
 
606
            self.log_message("Unknown client %r (%r) removed", name,
 
537
 
    def add_new_client(self, path, ifs_and_props):
 
538
 
        """Find a client by its object path and remove it.
 
540
 
        This is connected to the InterfacesAdded signal from the
 
541
 
        Mandos server object.
 
543
 
        if client_interface not in ifs_and_props:
 
544
 
            # Not a Mandos client object; ignore
 
 
611
    def add_new_client(self, path):
 
546
612
        client_proxy_object = self.bus.get_object(self.busname, path)
 
547
 
        self.add_client(MandosClientWidget(
 
548
 
            server_proxy_object=self.mandos_serv,
 
549
 
            proxy_object=client_proxy_object,
 
550
 
            update_hook=self.refresh,
 
551
 
            delete_hook=self.remove_client,
 
552
 
            properties=dict(ifs_and_props[client_interface])),
 
 
613
        self.add_client(MandosClientWidget(server_proxy_object
 
 
616
                                           =client_proxy_object,
 
555
625
    def add_client(self, client, path=None):
 
556
626
        self.clients.append(client)
 
558
628
            path = client.proxy.object_path
 
559
629
        self.clients_dict[path] = client
 
560
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
630
        self.clients.sort(None, lambda c: c.properties["Name"])
 
563
633
    def remove_client(self, client, path=None):
 
564
634
        self.clients.remove(client)
 
566
636
            path = client.proxy.object_path
 
567
637
        del self.clients_dict[path]
 
 
638
        if not self.clients_dict:
 
 
639
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
640
            # is completely emptied, we need to recreate it.
 
 
641
            self.clients = urwid.SimpleListWalker([])
 
570
645
    def refresh(self):
 
571
646
        """Redraw the screen"""
 
572
647
        canvas = self.topwidget.render(self.size, focus=True)
 
573
648
        self.screen.draw_screen(self.size, canvas)
 
576
651
        """Start the main loop and exit when it's done."""
 
577
 
        log.addHandler(self.loghandler)
 
578
 
        self.orig_log_propagate = log.propagate
 
579
 
        log.propagate = False
 
580
 
        self.orig_log_level = log.level
 
582
 
        self.bus = dbus.SystemBus()
 
583
 
        mandos_dbus_objc = self.bus.get_object(
 
584
 
            self.busname, "/", follow_name_owner_changes=True)
 
585
 
        self.mandos_serv = dbus.Interface(
 
586
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
588
 
            mandos_clients = (self.mandos_serv
 
589
 
                              .GetAllClientsWithProperties())
 
590
 
            if not mandos_clients:
 
591
 
                log.warning("Note: Server has no clients.")
 
592
 
        except dbus.exceptions.DBusException:
 
593
 
            log.warning("Note: No Mandos server running.")
 
594
 
            mandos_clients = dbus.Dictionary()
 
597
 
         .connect_to_signal("InterfacesRemoved",
 
598
 
                            self.find_and_remove_client,
 
599
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
602
 
         .connect_to_signal("InterfacesAdded",
 
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
607
 
         .connect_to_signal("ClientNotFound",
 
608
 
                            self.client_not_found,
 
609
 
                            dbus_interface=server_interface,
 
611
 
        for path, client in mandos_clients.items():
 
612
 
            client_proxy_object = self.bus.get_object(self.busname,
 
614
 
            self.add_client(MandosClientWidget(
 
615
 
                server_proxy_object=self.mandos_serv,
 
616
 
                proxy_object=client_proxy_object,
 
618
 
                update_hook=self.refresh,
 
619
 
                delete_hook=self.remove_client),
 
623
 
        self._input_callback_tag = (
 
625
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
626
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
627
 
                glib_safely(self.process_input)))
 
 
653
        self._input_callback_tag = (gobject.io_add_watch
 
628
657
        self.main_loop.run()
 
629
658
        # Main loop has finished, we should close everything now
 
630
 
        GLib.source_remove(self._input_callback_tag)
 
631
 
        with warnings.catch_warnings():
 
632
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
659
        gobject.source_remove(self._input_callback_tag)
 
636
663
        self.main_loop.quit()
 
637
 
        log.removeHandler(self.loghandler)
 
638
 
        log.propagate = self.orig_log_propagate
 
640
665
    def process_input(self, source, condition):
 
641
666
        keys = self.screen.get_input()
 
642
 
        translations = {"ctrl n": "down",       # Emacs
 
643
 
                        "ctrl p": "up",         # Emacs
 
644
 
                        "ctrl v": "page down",  # Emacs
 
645
 
                        "meta v": "page up",    # Emacs
 
646
 
                        " ": "page down",       # less
 
647
 
                        "f": "page down",       # less
 
648
 
                        "b": "page up",         # less
 
 
667
        translations = { "ctrl n": "down",      # Emacs
 
 
668
                         "ctrl p": "up",        # Emacs
 
 
669
                         "ctrl v": "page down", # Emacs
 
 
670
                         "meta v": "page up",   # Emacs
 
 
671
                         " ": "page down",      # less
 
 
672
                         "f": "page down",      # less
 
 
673
                         "b": "page up",        # less
 
654
679
                key = translations[key]
 
655
680
            except KeyError:    # :-)
 
658
683
            if key == "q" or key == "Q":
 
661
686
            elif key == "window resize":
 
662
687
                self.size = self.screen.get_cols_rows()
 
664
 
            elif key == "ctrl l":
 
 
689
            elif key == "\f":  # Ctrl-L
 
667
691
            elif key == "l" or key == "D":
 
668
692
                self.toggle_log_display()
 
 
701
724
                    self.topwidget.set_focus(self.logbox)
 
704
 
                if log.level < logging.INFO:
 
705
 
                    log.setLevel(logging.INFO)
 
706
 
                    log.info("Verbose mode: Off")
 
708
 
                    log.setLevel(logging.NOTSET)
 
709
 
                    log.info("Verbose mode: On")
 
710
 
            # elif (key == "end" or key == "meta >" or key == "G"
 
712
 
            #     pass            # xxx end-of-buffer
 
713
 
            # elif (key == "home" or key == "meta <" or key == "g"
 
715
 
            #     pass            # xxx beginning-of-buffer
 
716
 
            # elif key == "ctrl e" or key == "$":
 
717
 
            #     pass            # xxx move-end-of-line
 
718
 
            # elif key == "ctrl a" or key == "^":
 
719
 
            #     pass            # xxx move-beginning-of-line
 
720
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
722
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
725
 
            #     pass            # scroll up log
 
727
 
            #     pass            # scroll down log
 
 
726
            #elif (key == "end" or key == "meta >" or key == "G"
 
 
728
            #    pass            # xxx end-of-buffer
 
 
729
            #elif (key == "home" or key == "meta <" or key == "g"
 
 
731
            #    pass            # xxx beginning-of-buffer
 
 
732
            #elif key == "ctrl e" or key == "$":
 
 
733
            #    pass            # xxx move-end-of-line
 
 
734
            #elif key == "ctrl a" or key == "^":
 
 
735
            #    pass            # xxx move-beginning-of-line
 
 
736
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
738
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
741
            #    pass            # scroll up log
 
 
743
            #    pass            # scroll down log
 
728
744
            elif self.topwidget.selectable():
 
729
745
                self.topwidget.keypress(self.size, key)
 
734
 
class UILogHandler(logging.Handler):
 
735
 
    def __init__(self, ui, *args, **kwargs):
 
737
 
        super(UILogHandler, self).__init__(*args, **kwargs)
 
739
 
            logging.Formatter("%(asctime)s: %(message)s"))
 
740
 
    def emit(self, record):
 
741
 
        msg = self.format(record)
 
742
 
        if record.levelno > logging.INFO:
 
744
 
        self.ui.add_log_line(msg)
 
747
749
ui = UserInterface()
 
750
752
except KeyboardInterrupt:
 
751
 
    with warnings.catch_warnings():
 
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
755
 
    with warnings.catch_warnings():
 
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
755
    ui.log_message(unicode(e))