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>.
 
26
 
from __future__ import (division, absolute_import, print_function,
 
 
20
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 
22
# Contact the authors at <mandos@fukt.bsnet.se>.
 
30
 
    from future_builtins import *
 
 
25
from __future__ import division, absolute_import, print_function, unicode_literals
 
41
33
import urwid.curses_display
 
44
36
from dbus.mainloop.glib import DBusGMainLoop
 
45
 
from gi.repository import GLib
 
49
 
if sys.version_info.major == 2:
 
54
 
# Show warnings by default
 
55
 
if not sys.warnoptions:
 
56
 
    warnings.simplefilter("default")
 
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
 
62
 
logging.captureWarnings(True)   # Show warnings via the logging system
 
64
 
locale.setlocale(locale.LC_ALL, "")
 
66
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
 
45
locale.setlocale(locale.LC_ALL, '')
 
 
48
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
68
50
# Some useful constants
 
69
 
domain = "se.recompile"
 
70
 
server_interface = domain + ".Mandos"
 
71
 
client_interface = domain + ".Mandos.Client"
 
75
 
    dbus.OBJECT_MANAGER_IFACE
 
76
 
except AttributeError:
 
77
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
 
51
domain = 'se.bsnet.fukt'
 
 
52
server_interface = domain + '.Mandos'
 
 
53
client_interface = domain + '.Mandos.Client'
 
 
56
# Always run in monochrome mode
 
 
57
urwid.curses_display.curses.has_colors = lambda : False
 
 
59
# Urwid doesn't support blinking, but we want it.  Since we have no
 
 
60
# use for underline on its own, we make underline also always blink.
 
 
61
urwid.curses_display.curses.A_UNDERLINE |= (
 
 
62
    urwid.curses_display.curses.A_BLINK)
 
80
64
def isoformat_to_datetime(iso):
 
81
65
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
 
93
 
                             int(second),            # Whole seconds
 
94
 
                             int(fraction*1000000))  # Microseconds
 
97
 
class MandosClientPropertyCache:
 
 
77
                             int(second),           # Whole seconds
 
 
78
                             int(fraction*1000000)) # Microseconds
 
 
80
class MandosClientPropertyCache(object):
 
98
81
    """This wraps a Mandos Client D-Bus proxy object, caches the
 
99
82
    properties and calls a hook function when any of them are
 
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,
 
111
 
        if properties is None:
 
112
 
            self.properties.update(self.proxy.GetAll(
 
114
 
                dbus_interface=dbus.PROPERTIES_IFACE))
 
116
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
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.
 
 
85
    def __init__(self, proxy_object=None, *args, **kwargs):
 
 
86
        self.proxy = proxy_object # Mandos Client proxy object
 
 
88
        self.properties = dict()
 
 
89
        self.proxy.connect_to_signal("PropertyChanged",
 
 
90
                                     self.property_changed,
 
 
94
        self.properties.update(
 
 
95
            self.proxy.GetAll(client_interface,
 
 
96
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
98
        #XXX This break good super behaviour!
 
 
99
#        super(MandosClientPropertyCache, self).__init__(
 
 
102
    def property_changed(self, property=None, value=None):
 
 
103
        """This is called whenever we get a PropertyChanged signal
 
 
104
        It updates the changed property in the "properties" dict.
 
122
106
        # Update properties dict with new value
 
123
 
        if interface == client_interface:
 
124
 
            self.properties.update(properties)
 
127
 
        self.property_changed_match.remove()
 
 
107
        self.properties[property] = value
 
130
110
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
131
111
    """A Mandos Client which is visible on the screen.
 
134
114
    def __init__(self, server_proxy_object=None, update_hook=None,
 
135
 
                 delete_hook=None, **kwargs):
 
 
115
                 delete_hook=None, logger=None, *args, **kwargs):
 
136
116
        # Called on update
 
137
117
        self.update_hook = update_hook
 
138
118
        # Called on delete
 
139
119
        self.delete_hook = delete_hook
 
140
120
        # Mandos Server proxy object
 
141
121
        self.server_proxy_object = server_proxy_object
 
143
125
        self._update_timer_callback_tag = None
 
 
126
        self._update_timer_callback_lock = 0
 
 
127
        self.last_checker_failed = False
 
145
129
        # The widget shown normally
 
146
130
        self._text_widget = urwid.Text("")
 
147
131
        # The widget shown when we have focus
 
148
132
        self._focus_text_widget = urwid.Text("")
 
149
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
133
        super(MandosClientWidget, self).__init__(
 
 
134
            update_hook=update_hook, delete_hook=delete_hook,
 
151
137
        self.opened = False
 
153
 
        self.match_objects = (
 
154
 
            self.proxy.connect_to_signal("CheckerCompleted",
 
155
 
                                         self.checker_completed,
 
158
 
            self.proxy.connect_to_signal("CheckerStarted",
 
159
 
                                         self.checker_started,
 
162
 
            self.proxy.connect_to_signal("GotSecret",
 
166
 
            self.proxy.connect_to_signal("NeedApproval",
 
170
 
            self.proxy.connect_to_signal("Rejected",
 
174
 
        log.debug("Created client %s", self.properties["Name"])
 
 
139
        last_checked_ok = isoformat_to_datetime(self.properties
 
 
141
        if last_checked_ok is None:
 
 
142
            self.last_checker_failed = True
 
 
144
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
 
151
        if self.last_checker_failed:
 
 
152
            self.using_timer(True)
 
 
154
        if self.need_approval:
 
 
155
            self.using_timer(True)
 
 
157
        self.proxy.connect_to_signal("CheckerCompleted",
 
 
158
                                     self.checker_completed,
 
 
161
        self.proxy.connect_to_signal("CheckerStarted",
 
 
162
                                     self.checker_started,
 
 
165
        self.proxy.connect_to_signal("GotSecret",
 
 
169
        self.proxy.connect_to_signal("NeedApproval",
 
 
173
        self.proxy.connect_to_signal("Rejected",
 
 
178
    def property_changed(self, property=None, value=None):
 
 
179
        super(self, MandosClientWidget).property_changed(property,
 
 
181
        if property == "ApprovalPending":
 
 
182
            using_timer(bool(value))
 
176
184
    def using_timer(self, flag):
 
177
185
        """Call this method with True or False when timer should be
 
178
186
        activated or deactivated.
 
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)
 
 
188
        old = self._update_timer_callback_lock
 
 
190
            self._update_timer_callback_lock += 1
 
 
192
            self._update_timer_callback_lock -= 1
 
 
193
        if old == 0 and self._update_timer_callback_lock:
 
 
194
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
197
        elif old and self._update_timer_callback_lock == 0:
 
 
198
            gobject.source_remove(self._update_timer_callback_tag)
 
187
199
            self._update_timer_callback_tag = None
 
189
201
    def checker_completed(self, exitstatus, condition, command):
 
190
202
        if exitstatus == 0:
 
191
 
            log.debug('Checker for client %s (command "%s")'
 
192
 
                      " succeeded", self.properties["Name"], command)
 
 
203
            if self.last_checker_failed:
 
 
204
                self.last_checker_failed = False
 
 
205
                self.using_timer(False)
 
 
206
            #self.logger('Checker for client %s (command "%s")'
 
 
208
            #            % (self.properties["Name"], command))
 
 
212
        if not self.last_checker_failed:
 
 
213
            self.last_checker_failed = True
 
 
214
            self.using_timer(True)
 
196
215
        if os.WIFEXITED(condition):
 
197
 
            log.info('Checker for client %s (command "%s") failed'
 
198
 
                     " with exit code %d", self.properties["Name"],
 
199
 
                     command, os.WEXITSTATUS(condition))
 
 
216
            self.logger('Checker for client %s (command "%s")'
 
 
217
                        ' failed with exit code %s'
 
 
218
                        % (self.properties["Name"], command,
 
 
219
                           os.WEXITSTATUS(condition)))
 
200
220
        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))
 
 
221
            self.logger('Checker for client %s (command "%s")'
 
 
222
                        ' was killed by signal %s'
 
 
223
                        % (self.properties["Name"], command,
 
 
224
                           os.WTERMSIG(condition)))
 
 
225
        elif os.WCOREDUMP(condition):
 
 
226
            self.logger('Checker for client %s (command "%s")'
 
 
228
                        % (self.properties["Name"], command))
 
 
230
            self.logger('Checker for client %s completed'
 
206
234
    def checker_started(self, command):
 
207
 
        """Server signals that a checker started."""
 
208
 
        log.debug('Client %s started checker "%s"',
 
209
 
                  self.properties["Name"], command)
 
 
235
        #self.logger('Client %s started checker "%s"'
 
 
236
        #            % (self.properties["Name"], unicode(command)))
 
211
239
    def got_secret(self):
 
212
 
        log.info("Client %s received its secret",
 
213
 
                 self.properties["Name"])
 
 
240
        self.last_checker_failed = False
 
 
241
        self.logger('Client %s received its secret'
 
 
242
                    % self.properties["Name"])
 
215
244
    def need_approval(self, timeout, default):
 
217
 
            message = "Client %s needs approval within %f seconds"
 
 
246
            message = 'Client %s needs approval within %s seconds'
 
219
 
            message = "Client %s will get its secret in %f seconds"
 
220
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
248
            message = 'Client %s will get its secret in %s seconds'
 
 
250
                    % (self.properties["Name"], timeout/1000))
 
 
251
        self.using_timer(True)
 
222
253
    def rejected(self, reason):
 
223
 
        log.info("Client %s was rejected; reason: %s",
 
224
 
                 self.properties["Name"], reason)
 
 
254
        self.logger('Client %s was rejected; reason: %s'
 
 
255
                    % (self.properties["Name"], reason))
 
226
257
    def selectable(self):
 
227
258
        """Make this a "selectable" widget.
 
228
259
        This overrides the method from urwid.FlowWidget."""
 
231
262
    def rows(self, maxcolrow, focus=False):
 
232
263
        """How many rows this widget will occupy might depend on
 
233
264
        whether we have focus or not.
 
234
265
        This overrides the method from urwid.FlowWidget"""
 
235
266
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
237
268
    def current_widget(self, focus=False):
 
238
269
        if focus or self.opened:
 
239
270
            return self._focus_widget
 
240
271
        return self._widget
 
242
273
    def update(self):
 
243
274
        "Called when what is visible on the screen should be updated."
 
244
275
        # How to add standout mode to a style
 
245
 
        with_standout = {"normal": "standout",
 
246
 
                         "bold": "bold-standout",
 
248
 
                         "underline-blink-standout",
 
249
 
                         "bold-underline-blink":
 
250
 
                         "bold-underline-blink-standout",
 
 
276
        with_standout = { "normal": "standout",
 
 
277
                          "bold": "bold-standout",
 
 
279
                              "underline-blink-standout",
 
 
280
                          "bold-underline-blink":
 
 
281
                              "bold-underline-blink-standout",
 
253
284
        # Rebuild focus and non-focus widgets using current properties
 
255
286
        # Base part of a client. Name!
 
256
 
        base = "{name}: ".format(name=self.properties["Name"])
 
 
288
                      % {"name": self.properties["Name"]})
 
257
289
        if not self.properties["Enabled"]:
 
258
290
            message = "DISABLED"
 
259
 
            self.using_timer(False)
 
260
291
        elif self.properties["ApprovalPending"]:
 
261
 
            timeout = datetime.timedelta(
 
262
 
                milliseconds=self.properties["ApprovalDelay"])
 
 
292
            timeout = datetime.timedelta(milliseconds
 
263
295
            last_approval_request = isoformat_to_datetime(
 
264
296
                self.properties["LastApprovalRequest"])
 
265
297
            if last_approval_request is not None:
 
266
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
267
 
                                       - last_approval_request),
 
268
 
                            datetime.timedelta())
 
 
298
                timer = timeout - (datetime.datetime.utcnow()
 
 
299
                                   - last_approval_request)
 
270
301
                timer = datetime.timedelta()
 
271
302
            if self.properties["ApprovedByDefault"]:
 
272
 
                message = "Approval in {}. (d)eny?"
 
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"]
 
281
 
                timer = datetime.timedelta(0)
 
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"
 
289
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
290
 
            self.using_timer(True)
 
 
303
                message = "Approval in %s. (d)eny?"
 
 
305
                message = "Denial in %s. (a)pprove?"
 
 
306
            message = message % unicode(timer).rsplit(".", 1)[0]
 
 
307
        elif self.last_checker_failed:
 
 
308
            timeout = datetime.timedelta(milliseconds
 
 
311
            last_ok = isoformat_to_datetime(
 
 
312
                max((self.properties["LastCheckedOK"]
 
 
313
                     or self.properties["Created"]),
 
 
314
                    self.properties["LastEnabled"]))
 
 
315
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
 
316
            message = ('A checker has failed! Time until client'
 
 
318
                           % unicode(timer).rsplit(".", 1)[0])
 
292
320
            message = "enabled"
 
293
 
            self.using_timer(False)
 
294
 
        self._text = "{}{}".format(base, message)
 
 
321
        self._text = "%s%s" % (base, message)
 
296
323
        if not urwid.supports_unicode():
 
297
324
            self._text = self._text.encode("ascii", "replace")
 
298
325
        textlist = [("normal", self._text)]
 
 
308
335
        # Run update hook, if any
 
309
336
        if self.update_hook is not None:
 
310
337
            self.update_hook()
 
312
339
    def update_timer(self):
 
313
 
        """called by GLib. Will indefinitely loop until
 
314
 
        GLib.source_remove() on tag is called
 
317
342
        return True             # Keep calling this
 
319
 
    def delete(self, **kwargs):
 
320
345
        if self._update_timer_callback_tag is not None:
 
321
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
346
            gobject.source_remove(self._update_timer_callback_tag)
 
322
347
            self._update_timer_callback_tag = None
 
323
 
        for match in self.match_objects:
 
325
 
        self.match_objects = ()
 
326
348
        if self.delete_hook is not None:
 
327
349
            self.delete_hook(self)
 
328
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
330
351
    def render(self, maxcolrow, focus=False):
 
331
352
        """Render differently if we have focus.
 
332
353
        This overrides the method from urwid.FlowWidget"""
 
333
354
        return self.current_widget(focus).render(maxcolrow,
 
336
357
    def keypress(self, maxcolrow, key):
 
338
359
        This overrides the method from urwid.FlowWidget"""
 
340
 
            self.proxy.Set(client_interface, "Enabled",
 
341
 
                           dbus.Boolean(True), ignore_reply=True,
 
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
361
            self.proxy.Enable(dbus_interface = client_interface)
 
344
 
            self.proxy.Set(client_interface, "Enabled", False,
 
346
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
363
            self.proxy.Disable(dbus_interface = client_interface)
 
348
365
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
 
                               dbus_interface=client_interface,
 
 
366
                               dbus_interface = client_interface)
 
352
368
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
 
                               dbus_interface=client_interface,
 
 
369
                                  dbus_interface = client_interface)
 
355
370
        elif key == "R" or key == "_" or key == "ctrl k":
 
356
371
            self.server_proxy_object.RemoveClient(self.proxy
 
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
 
                           dbus.Boolean(True), ignore_reply=True,
 
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
374
            self.proxy.StartChecker(dbus_interface = client_interface)
 
364
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
365
 
                           dbus.Boolean(False), ignore_reply=True,
 
366
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
376
            self.proxy.StopChecker(dbus_interface = client_interface)
 
368
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
378
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
371
380
#         elif key == "p" or key == "=":
 
372
381
#             self.proxy.pause()
 
 
380
 
    def properties_changed(self, interface, properties, invalidated):
 
381
 
        """Call self.update() if any properties changed.
 
 
389
    def property_changed(self, property=None, value=None,
 
 
391
        """Call self.update() if old value is not new value.
 
382
392
        This overrides the method from MandosClientPropertyCache"""
 
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):
 
 
393
        property_name = unicode(property)
 
 
394
        old_value = self.properties.get(property_name)
 
 
395
        super(MandosClientWidget, self).property_changed(
 
 
396
            property=property, value=value, *args, **kwargs)
 
 
397
        if self.properties.get(property_name) != old_value:
 
392
 
def glib_safely(func, retval=True):
 
393
 
    def safe_func(*args, **kwargs):
 
395
 
            return func(*args, **kwargs)
 
402
401
class ConstrainedListBox(urwid.ListBox):
 
403
402
    """Like a normal urwid.ListBox, but will consume all "up" or
 
404
403
    "down" key presses, thus not allowing any containing widgets to
 
405
404
    use them as an excuse to shift focus away from this widget.
 
407
 
    def keypress(self, *args, **kwargs):
 
408
 
        ret = (super(ConstrainedListBox, self)
 
409
 
               .keypress(*args, **kwargs))
 
 
406
    def keypress(self, maxcolrow, key):
 
 
407
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
410
408
        if ret in ("up", "down"):
 
 
413
class UserInterface(object):
 
416
414
    """This is the entire user interface - the whole screen
 
417
415
    with boxes, lists of client widgets, etc.
 
419
417
    def __init__(self, max_log_length=1000):
 
420
418
        DBusGMainLoop(set_as_default=True)
 
422
420
        self.screen = urwid.curses_display.Screen()
 
424
422
        self.screen.register_palette((
 
426
424
                 "default", "default", None),
 
428
 
                 "bold", "default", "bold"),
 
 
426
                 "default", "default", "bold"),
 
429
427
                ("underline-blink",
 
430
 
                 "underline,blink", "default", "underline,blink"),
 
 
428
                 "default", "default", "underline"),
 
432
 
                 "standout", "default", "standout"),
 
 
430
                 "default", "default", "standout"),
 
433
431
                ("bold-underline-blink",
 
434
 
                 "bold,underline,blink", "default",
 
435
 
                 "bold,underline,blink"),
 
 
432
                 "default", "default", ("bold", "underline")),
 
436
433
                ("bold-standout",
 
437
 
                 "bold,standout", "default", "bold,standout"),
 
 
434
                 "default", "default", ("bold", "standout")),
 
438
435
                ("underline-blink-standout",
 
439
 
                 "underline,blink,standout", "default",
 
440
 
                 "underline,blink,standout"),
 
 
436
                 "default", "default", ("underline", "standout")),
 
441
437
                ("bold-underline-blink-standout",
 
442
 
                 "bold,underline,blink,standout", "default",
 
443
 
                 "bold,underline,blink,standout"),
 
 
438
                 "default", "default", ("bold", "underline",
 
446
442
        if urwid.supports_unicode():
 
447
 
            self.divider = "─"  # \u2500
 
 
443
            self.divider = "─" # \u2500
 
 
444
            #self.divider = "━" # \u2501
 
449
 
            self.divider = "_"  # \u005f
 
 
446
            #self.divider = "-" # \u002d
 
 
447
            self.divider = "_" # \u005f
 
451
449
        self.screen.start()
 
453
451
        self.size = self.screen.get_cols_rows()
 
455
453
        self.clients = urwid.SimpleListWalker([])
 
456
454
        self.clients_dict = {}
 
458
456
        # We will add Text widgets to this list
 
459
 
        self.log = urwid.SimpleListWalker([])
 
460
458
        self.max_log_length = max_log_length
 
462
460
        # We keep a reference to the log widget so we can remove it
 
463
461
        # from the ListWalker without it getting destroyed
 
464
462
        self.logbox = ConstrainedListBox(self.log)
 
466
464
        # This keeps track of whether self.uilist currently has
 
467
465
        # self.logbox in it or not
 
468
466
        self.log_visible = True
 
469
467
        self.log_wrap = "any"
 
471
 
        self.loghandler = UILogHandler(self)
 
474
 
        self.add_log_line(("bold",
 
475
 
                           "Mandos Monitor version " + version))
 
476
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
478
 
        self.busname = domain + ".Mandos"
 
479
 
        self.main_loop = GLib.MainLoop()
 
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)
 
 
470
        self.log_message_raw(("bold",
 
 
471
                              "Mandos Monitor version " + version))
 
 
472
        self.log_message_raw(("bold",
 
 
475
        self.busname = domain + '.Mandos'
 
 
476
        self.main_loop = gobject.MainLoop()
 
 
477
        self.bus = dbus.SystemBus()
 
 
478
        mandos_dbus_objc = self.bus.get_object(
 
 
479
            self.busname, "/", follow_name_owner_changes=True)
 
 
480
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
484
            mandos_clients = (self.mandos_serv
 
 
485
                              .GetAllClientsWithProperties())
 
 
486
        except dbus.exceptions.DBusException:
 
 
487
            mandos_clients = dbus.Dictionary()
 
 
490
         .connect_to_signal("ClientRemoved",
 
 
491
                            self.find_and_remove_client,
 
 
492
                            dbus_interface=server_interface,
 
 
495
         .connect_to_signal("ClientAdded",
 
 
497
                            dbus_interface=server_interface,
 
 
500
         .connect_to_signal("ClientNotFound",
 
 
501
                            self.client_not_found,
 
 
502
                            dbus_interface=server_interface,
 
 
504
        for path, client in mandos_clients.iteritems():
 
 
505
            client_proxy_object = self.bus.get_object(self.busname,
 
 
507
            self.add_client(MandosClientWidget(server_proxy_object
 
 
510
                                               =client_proxy_object,
 
 
520
    def client_not_found(self, fingerprint, address):
 
 
521
        self.log_message(("Client with address %s and fingerprint %s"
 
 
522
                          " could not be found" % (address,
 
485
525
    def rebuild(self):
 
486
526
        """This rebuilds the User Interface.
 
487
527
        Call this when the widget layout needs to change"""
 
489
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
529
        #self.uilist.append(urwid.ListBox(self.clients))
 
490
530
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
492
 
                                       # header=urwid.Divider(),
 
 
532
                                       #header=urwid.Divider(),
 
494
 
                                       footer=urwid.Divider(
 
495
 
                                           div_char=self.divider)))
 
 
535
                                       urwid.Divider(div_char=
 
496
537
        if self.log_visible:
 
497
538
            self.uilist.append(self.logbox)
 
498
540
        self.topwidget = urwid.Pile(self.uilist)
 
500
 
    def add_log_line(self, markup):
 
 
542
    def log_message(self, message):
 
 
543
        timestamp = datetime.datetime.now().isoformat()
 
 
544
        self.log_message_raw(timestamp + ": " + message)
 
 
546
    def log_message_raw(self, markup):
 
 
547
        """Add a log message to the log buffer."""
 
501
548
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
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,
 
 
549
        if (self.max_log_length
 
 
550
            and len(self.log) > self.max_log_length):
 
 
551
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
552
        self.logbox.set_focus(len(self.logbox.body.contents),
 
506
553
                              coming_from="above")
 
509
556
    def toggle_log_display(self):
 
510
557
        """Toggle visibility of the log buffer."""
 
511
558
        self.log_visible = not self.log_visible
 
513
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
560
        #self.log_message("Log visibility changed to: "
 
 
561
        #                 + unicode(self.log_visible))
 
515
563
    def change_log_display(self):
 
516
564
        """Change type of log display.
 
517
565
        Currently, this toggles wrapping of text lines."""
 
 
521
569
            self.log_wrap = "clip"
 
522
570
        for textwidget in self.log:
 
523
571
            textwidget.set_wrap_mode(self.log_wrap)
 
524
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
526
 
    def find_and_remove_client(self, path, interfaces):
 
527
 
        """Find a client by its object path and remove it.
 
529
 
        This is connected to the InterfacesRemoved signal from the
 
 
572
        #self.log_message("Wrap mode: " + self.log_wrap)
 
 
574
    def find_and_remove_client(self, path, name):
 
 
575
        """Find an client from its object path and remove it.
 
 
577
        This is connected to the ClientRemoved signal from the
 
530
578
        Mandos server object."""
 
531
 
        if client_interface not in interfaces:
 
532
 
            # Not a Mandos client object; ignore
 
535
580
            client = self.clients_dict[path]
 
538
 
            log.warning("Unknown client %s removed", path)
 
542
 
    def add_new_client(self, path, ifs_and_props):
 
543
 
        """Find a client by its object path and remove it.
 
545
 
        This is connected to the InterfacesAdded signal from the
 
546
 
        Mandos server object.
 
548
 
        if client_interface not in ifs_and_props:
 
549
 
            # Not a Mandos client object; ignore
 
 
584
        self.remove_client(client, path)
 
 
586
    def add_new_client(self, path):
 
551
587
        client_proxy_object = self.bus.get_object(self.busname, path)
 
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])),
 
 
588
        self.add_client(MandosClientWidget(server_proxy_object
 
 
591
                                           =client_proxy_object,
 
560
600
    def add_client(self, client, path=None):
 
561
601
        self.clients.append(client)
 
563
603
            path = client.proxy.object_path
 
564
604
        self.clients_dict[path] = client
 
565
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
605
        self.clients.sort(None, lambda c: c.properties["Name"])
 
568
608
    def remove_client(self, client, path=None):
 
569
609
        self.clients.remove(client)
 
571
611
            path = client.proxy.object_path
 
572
612
        del self.clients_dict[path]
 
 
613
        if not self.clients_dict:
 
 
614
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
615
            # is completely emptied, we need to recreate it.
 
 
616
            self.clients = urwid.SimpleListWalker([])
 
575
620
    def refresh(self):
 
576
621
        """Redraw the screen"""
 
577
622
        canvas = self.topwidget.render(self.size, focus=True)
 
578
623
        self.screen.draw_screen(self.size, canvas)
 
581
626
        """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
 
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)
 
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()
 
602
 
         .connect_to_signal("InterfacesRemoved",
 
603
 
                            self.find_and_remove_client,
 
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
607
 
         .connect_to_signal("InterfacesAdded",
 
609
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
612
 
         .connect_to_signal("ClientNotFound",
 
613
 
                            self.client_not_found,
 
614
 
                            dbus_interface=server_interface,
 
616
 
        for path, client in mandos_clients.items():
 
617
 
            client_proxy_object = self.bus.get_object(self.busname,
 
619
 
            self.add_client(MandosClientWidget(
 
620
 
                server_proxy_object=self.mandos_serv,
 
621
 
                proxy_object=client_proxy_object,
 
623
 
                update_hook=self.refresh,
 
624
 
                delete_hook=self.remove_client),
 
628
 
        self._input_callback_tag = (
 
630
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
 
                glib_safely(self.process_input)))
 
 
628
        self._input_callback_tag = (gobject.io_add_watch
 
633
632
        self.main_loop.run()
 
634
633
        # Main loop has finished, we should close everything now
 
635
 
        GLib.source_remove(self._input_callback_tag)
 
636
 
        with warnings.catch_warnings():
 
637
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
634
        gobject.source_remove(self._input_callback_tag)
 
641
638
        self.main_loop.quit()
 
642
 
        log.removeHandler(self.loghandler)
 
643
 
        log.propagate = self.orig_log_propagate
 
645
640
    def process_input(self, source, condition):
 
646
641
        keys = self.screen.get_input()
 
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
 
 
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
 
659
654
                key = translations[key]
 
660
655
            except KeyError:    # :-)
 
663
658
            if key == "q" or key == "Q":
 
666
661
            elif key == "window resize":
 
667
662
                self.size = self.screen.get_cols_rows()
 
669
 
            elif key == "ctrl l":
 
 
664
            elif key == "\f":  # Ctrl-L
 
672
666
            elif key == "l" or key == "D":
 
673
667
                self.toggle_log_display()