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# -*- mode: python; coding: utf-8 -*-
 
 
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# Mandos Monitor - Control and monitor the Mandos server
 
 
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# Copyright © 2009-2019 Teddy Hogeborn
 
 
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# Copyright © 2009-2019 Björn Påhlsson
 
 
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# This file is part of Mandos.
 
 
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# Mandos is free software: you can redistribute it and/or modify it
 
 
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# under the terms of the GNU General Public License as published by
 
 
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# the Free Software Foundation, either version 3 of the License, or
 
 
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# (at your option) any later version.
 
 
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#     Mandos is distributed in the hope that it will be useful, but
 
 
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#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
 
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#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 
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#     GNU General Public License for more details.
 
 
21
# You should have received a copy of the GNU General Public License
 
 
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# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
 
24
# Contact the authors at <mandos@recompile.se>.
 
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from __future__ import division, absolute_import, with_statement
 
 
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from __future__ import (division, absolute_import, print_function,
 
 
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    from future_builtins import *
 
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import urwid.curses_display
 
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from dbus.mainloop.glib import DBusGMainLoop
 
 
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from gi.repository import GLib
 
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locale.setlocale(locale.LC_ALL, u'')
 
 
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if sys.version_info.major == 2:
 
 
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locale.setlocale(locale.LC_ALL, '')
 
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = 'se.bsnet.fukt'
 
 
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domain = 'se.recompile'
 
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server_interface = domain + '.Mandos'
 
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client_interface = domain + '.Mandos.Client'
 
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# Always run in monochrome mode
 
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urwid.curses_display.curses.has_colors = lambda : False
 
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# Urwid doesn't support blinking, but we want it.  Since we have no
 
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# use for underline on its own, we make underline also always blink.
 
37
 
urwid.curses_display.curses.A_UNDERLINE |= (
 
38
 
    urwid.curses_display.curses.A_BLINK)
 
 
65
    dbus.OBJECT_MANAGER_IFACE
 
 
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except AttributeError:
 
 
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    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
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def isoformat_to_datetime(iso):
 
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    "Parse an ISO 8601 date string to a datetime.datetime()"
 
44
 
    d, t = iso.split(u"T", 1)
 
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    year, month, day = d.split(u"-", 2)
 
46
 
    hour, minute, second = t.split(u":", 2)
 
 
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    d, t = iso.split("T", 1)
 
 
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    year, month, day = d.split("-", 2)
 
 
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    hour, minute, second = t.split(":", 2)
 
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    second, fraction = divmod(float(second), 1)
 
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    return datetime.datetime(int(year),
 
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                             int(second),           # Whole seconds
 
54
 
                             int(fraction*1000000)) # Microseconds
 
 
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                             int(second),            # Whole seconds
 
 
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                             int(fraction*1000000))  # Microseconds
 
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class MandosClientPropertyCache(object):
 
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    """This wraps a Mandos Client D-Bus proxy object, caches the
 
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    properties and calls a hook function when any of them are
 
61
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
62
 
        self.proxy = proxy_object # Mandos Client proxy object
 
64
 
        self.properties = dict()
 
65
 
        self.proxy.connect_to_signal(u"PropertyChanged",
 
66
 
                                     self.property_changed,
 
70
 
        self.properties.update(
 
71
 
            self.proxy.GetAll(client_interface,
 
72
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
73
 
        super(MandosClientPropertyCache, self).__init__(
 
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            proxy_object=proxy_object, *args, **kwargs)
 
76
 
    def property_changed(self, property=None, value=None):
 
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        """This is called whenever we get a PropertyChanged signal
 
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        It updates the changed property in the "properties" dict.
 
 
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    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
 
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        self.properties = dict() if properties is None else properties
 
 
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        self.property_changed_match = (
 
 
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            self.proxy.connect_to_signal("PropertiesChanged",
 
 
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                                         self.properties_changed,
 
 
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                                         dbus.PROPERTIES_IFACE,
 
 
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        if properties is None:
 
 
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            self.properties.update(self.proxy.GetAll(
 
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
 
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        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
 
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    def properties_changed(self, interface, properties, invalidated):
 
 
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        """This is called whenever we get a PropertiesChanged signal
 
 
110
        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
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        self.properties[property] = value
 
 
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        if interface == client_interface:
 
 
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            self.properties.update(properties)
 
 
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        self.property_changed_match.remove()
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
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    """A Mandos Client which is visible on the screen.
 
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    def __init__(self, server_proxy_object=None, update_hook=None,
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
 
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                 delete_hook=None, logger=None, **kwargs):
 
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
 
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        self.server_proxy_object = server_proxy_object
 
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        self.logger = logger
 
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        self._update_timer_callback_tag = None
 
100
 
        self.last_checker_failed = False
 
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        # The widget shown normally
 
103
 
        self._text_widget = urwid.Text(u"")
 
 
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        self._text_widget = urwid.Text("")
 
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        # The widget shown when we have focus
 
105
 
        self._focus_text_widget = urwid.Text(u"")
 
106
 
        super(MandosClientWidget, self).__init__(
 
107
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
140
        self._focus_text_widget = urwid.Text("")
 
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
 
110
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        self.opened = False
 
111
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
112
 
                                     self.checker_completed,
 
115
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
116
 
                                     self.checker_started,
 
119
 
        self.proxy.connect_to_signal(u"GotSecret",
 
123
 
        self.proxy.connect_to_signal(u"Rejected",
 
127
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
129
 
        if last_checked_ok is None:
 
130
 
            self.last_checker_failed = True
 
132
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
136
 
                                         self.properties["interval"]))
 
137
 
        if self.last_checker_failed:
 
138
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
145
        self.match_objects = (
 
 
146
            self.proxy.connect_to_signal("CheckerCompleted",
 
 
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                                         self.checker_completed,
 
 
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            self.proxy.connect_to_signal("CheckerStarted",
 
 
151
                                         self.checker_started,
 
 
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            self.proxy.connect_to_signal("GotSecret",
 
 
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            self.proxy.connect_to_signal("NeedApproval",
 
 
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            self.proxy.connect_to_signal("Rejected",
 
 
166
        self.logger('Created client {}'
 
 
167
                    .format(self.properties["Name"]), level=0)
 
 
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    def using_timer(self, flag):
 
 
170
        """Call this method with True or False when timer should be
 
 
171
        activated or deactivated.
 
 
173
        if flag and self._update_timer_callback_tag is None:
 
 
174
            # Will update the shown timer value every second
 
 
175
            self._update_timer_callback_tag = (GLib.timeout_add
 
140
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                                                self.update_timer))
 
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
 
179
            GLib.source_remove(self._update_timer_callback_tag)
 
 
180
            self._update_timer_callback_tag = None
 
142
182
    def checker_completed(self, exitstatus, condition, command):
 
143
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        if exitstatus == 0:
 
144
 
            if self.last_checker_failed:
 
145
 
                self.last_checker_failed = False
 
146
 
                gobject.source_remove(self._update_timer_callback_tag)
 
147
 
                self._update_timer_callback_tag = None
 
148
 
            self.logger(u'Checker for client %s (command "%s")'
 
150
 
                        % (self.properties[u"name"], command))
 
 
184
            self.logger('Checker for client {} (command "{}")'
 
 
185
                        ' succeeded'.format(self.properties["Name"],
 
154
 
        if not self.last_checker_failed:
 
155
 
            self.last_checker_failed = True
 
156
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
159
190
        if os.WIFEXITED(condition):
 
160
 
            self.logger(u'Checker for client %s (command "%s")'
 
161
 
                        u' failed with exit code %s'
 
162
 
                        % (self.properties[u"name"], command,
 
163
 
                           os.WEXITSTATUS(condition)))
 
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
 
193
                        .format(self.properties["Name"], command,
 
 
194
                                os.WEXITSTATUS(condition)))
 
164
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        elif os.WIFSIGNALED(condition):
 
165
 
            self.logger(u'Checker for client %s (command "%s")'
 
166
 
                        u' was killed by signal %s'
 
167
 
                        % (self.properties[u"name"], command,
 
168
 
                           os.WTERMSIG(condition)))
 
169
 
        elif os.WCOREDUMP(condition):
 
170
 
            self.logger(u'Checker for client %s (command "%s")'
 
172
 
                        % (self.properties[u"name"], command))
 
174
 
            self.logger(u'Checker for client %s completed mysteriously')
 
 
196
            self.logger('Checker for client {} (command "{}") was'
 
 
197
                        ' killed by signal {}'
 
 
198
                        .format(self.properties["Name"], command,
 
 
199
                                os.WTERMSIG(condition)))
 
177
202
    def checker_started(self, command):
 
178
 
        self.logger(u'Client %s started checker "%s"'
 
179
 
                    % (self.properties[u"name"], unicode(command)))
 
 
203
        """Server signals that a checker started."""
 
 
204
        self.logger('Client {} started checker "{}"'
 
 
205
                    .format(self.properties["Name"],
 
181
208
    def got_secret(self):
 
182
 
        self.logger(u'Client %s received its secret'
 
183
 
                    % self.properties[u"name"])
 
186
 
        self.logger(u'Client %s was rejected'
 
187
 
                    % self.properties[u"name"])
 
 
209
        self.logger('Client {} received its secret'
 
 
210
                    .format(self.properties["Name"]))
 
 
212
    def need_approval(self, timeout, default):
 
 
214
            message = 'Client {} needs approval within {} seconds'
 
 
216
            message = 'Client {} will get its secret in {} seconds'
 
 
217
        self.logger(message.format(self.properties["Name"],
 
 
220
    def rejected(self, reason):
 
 
221
        self.logger('Client {} was rejected; reason: {}'
 
 
222
                    .format(self.properties["Name"], reason))
 
189
224
    def selectable(self):
 
190
225
        """Make this a "selectable" widget.
 
191
226
        This overrides the method from urwid.FlowWidget."""
 
194
 
    def rows(self, (maxcol,), focus=False):
 
 
229
    def rows(self, maxcolrow, focus=False):
 
195
230
        """How many rows this widget will occupy might depend on
 
196
231
        whether we have focus or not.
 
197
232
        This overrides the method from urwid.FlowWidget"""
 
198
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
200
235
    def current_widget(self, focus=False):
 
201
236
        if focus or self.opened:
 
202
237
            return self._focus_widget
 
203
238
        return self._widget
 
205
240
    def update(self):
 
206
241
        "Called when what is visible on the screen should be updated."
 
207
242
        # How to add standout mode to a style
 
208
 
        with_standout = { u"normal": u"standout",
 
209
 
                          u"bold": u"bold-standout",
 
211
 
                              u"underline-blink-standout",
 
212
 
                          u"bold-underline-blink":
 
213
 
                              u"bold-underline-blink-standout",
 
 
243
        with_standout = {"normal": "standout",
 
 
244
                         "bold": "bold-standout",
 
 
246
                         "underline-blink-standout",
 
 
247
                         "bold-underline-blink":
 
 
248
                         "bold-underline-blink-standout",
 
216
251
        # Rebuild focus and non-focus widgets using current properties
 
217
 
        self._text = (u'%(name)s: %(enabled)s%(timer)s'
 
218
 
                      % { u"name": self.properties[u"name"],
 
221
 
                               if self.properties[u"enabled"]
 
223
 
                          u"timer": (unicode(datetime.timedelta
 
229
 
                                                - isoformat_to_datetime
 
230
 
                                                (max((self.properties
 
235
 
                                                    self.properties[u"last_enabled"]))))
 
236
 
                                     if (self.last_checker_failed
 
 
253
        # Base part of a client. Name!
 
 
254
        base = '{name}: '.format(name=self.properties["Name"])
 
 
255
        if not self.properties["Enabled"]:
 
 
257
            self.using_timer(False)
 
 
258
        elif self.properties["ApprovalPending"]:
 
 
259
            timeout = datetime.timedelta(
 
 
260
                milliseconds=self.properties["ApprovalDelay"])
 
 
261
            last_approval_request = isoformat_to_datetime(
 
 
262
                self.properties["LastApprovalRequest"])
 
 
263
            if last_approval_request is not None:
 
 
264
                timer = max(timeout - (datetime.datetime.utcnow()
 
 
265
                                       - last_approval_request),
 
 
266
                            datetime.timedelta())
 
 
268
                timer = datetime.timedelta()
 
 
269
            if self.properties["ApprovedByDefault"]:
 
 
270
                message = "Approval in {}. (d)eny?"
 
 
272
                message = "Denial in {}. (a)pprove?"
 
 
273
            message = message.format(str(timer).rsplit(".", 1)[0])
 
 
274
            self.using_timer(True)
 
 
275
        elif self.properties["LastCheckerStatus"] != 0:
 
 
276
            # When checker has failed, show timer until client expires
 
 
277
            expires = self.properties["Expires"]
 
 
279
                timer = datetime.timedelta(0)
 
 
281
                expires = (datetime.datetime.strptime
 
 
282
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
 
283
                timer = max(expires - datetime.datetime.utcnow(),
 
 
284
                            datetime.timedelta())
 
 
285
            message = ('A checker has failed! Time until client'
 
 
287
                       .format(str(timer).rsplit(".", 1)[0]))
 
 
288
            self.using_timer(True)
 
 
291
            self.using_timer(False)
 
 
292
        self._text = "{}{}".format(base, message)
 
240
294
        if not urwid.supports_unicode():
 
241
295
            self._text = self._text.encode("ascii", "replace")
 
242
 
        textlist = [(u"normal", self._text)]
 
 
296
        textlist = [("normal", self._text)]
 
243
297
        self._text_widget.set_text(textlist)
 
244
298
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
252
306
        # Run update hook, if any
 
253
307
        if self.update_hook is not None:
 
254
308
            self.update_hook()
 
256
310
    def update_timer(self):
 
 
311
        """called by GLib. Will indefinitely loop until
 
 
312
        GLib.source_remove() on tag is called
 
259
315
        return True             # Keep calling this
 
 
317
    def delete(self, **kwargs):
 
262
318
        if self._update_timer_callback_tag is not None:
 
263
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
319
            GLib.source_remove(self._update_timer_callback_tag)
 
264
320
            self._update_timer_callback_tag = None
 
 
321
        for match in self.match_objects:
 
 
323
        self.match_objects = ()
 
265
324
        if self.delete_hook is not None:
 
266
325
            self.delete_hook(self)
 
268
 
    def render(self, (maxcol,), focus=False):
 
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
328
    def render(self, maxcolrow, focus=False):
 
269
329
        """Render differently if we have focus.
 
270
330
        This overrides the method from urwid.FlowWidget"""
 
271
 
        return self.current_widget(focus).render((maxcol,),
 
 
331
        return self.current_widget(focus).render(maxcolrow,
 
274
 
    def keypress(self, (maxcol,), key):
 
 
334
    def keypress(self, maxcolrow, key):
 
276
336
        This overrides the method from urwid.FlowWidget"""
 
277
 
        if key == u"e" or key == u"+":
 
279
 
        elif key == u"d" or key == u"-":
 
281
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
338
            self.proxy.Set(client_interface, "Enabled",
 
 
339
                           dbus.Boolean(True), ignore_reply=True,
 
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
342
            self.proxy.Set(client_interface, "Enabled", False,
 
 
344
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
 
347
                               dbus_interface=client_interface,
 
 
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
 
351
                               dbus_interface=client_interface,
 
 
353
        elif key == "R" or key == "_" or key == "ctrl k":
 
282
354
            self.server_proxy_object.RemoveClient(self.proxy
 
285
 
            self.proxy.StartChecker()
 
287
 
            self.proxy.StopChecker()
 
289
 
            self.proxy.CheckedOK()
 
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
359
                           dbus.Boolean(True), ignore_reply=True,
 
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
362
            self.proxy.Set(client_interface, "CheckerRunning",
 
 
363
                           dbus.Boolean(False), ignore_reply=True,
 
 
364
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
366
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
291
 
#         elif key == u"p" or key == "=":
 
 
369
#         elif key == "p" or key == "=":
 
292
370
#             self.proxy.pause()
 
293
 
#         elif key == u"u" or key == ":":
 
 
371
#         elif key == "u" or key == ":":
 
294
372
#             self.proxy.unpause()
 
295
 
#         elif key == u"RET":
 
300
 
    def property_changed(self, property=None, value=None,
 
302
 
        """Call self.update() if old value is not new value.
 
 
378
    def properties_changed(self, interface, properties, invalidated):
 
 
379
        """Call self.update() if any properties changed.
 
303
380
        This overrides the method from MandosClientPropertyCache"""
 
304
 
        property_name = unicode(property)
 
305
 
        old_value = self.properties.get(property_name)
 
306
 
        super(MandosClientWidget, self).property_changed(
 
307
 
            property=property, value=value, *args, **kwargs)
 
308
 
        if self.properties.get(property_name) != old_value:
 
 
381
        old_values = {key: self.properties.get(key)
 
 
382
                      for key in properties.keys()}
 
 
383
        super(MandosClientWidget, self).properties_changed(
 
 
384
            interface, properties, invalidated)
 
 
385
        if any(old_values[key] != self.properties.get(key)
 
 
386
               for key in old_values):
 
 
325
404
    """This is the entire user interface - the whole screen
 
326
405
    with boxes, lists of client widgets, etc.
 
328
 
    def __init__(self, max_log_length=1000):
 
 
407
    def __init__(self, max_log_length=1000, log_level=1):
 
329
408
        DBusGMainLoop(set_as_default=True)
 
331
410
        self.screen = urwid.curses_display.Screen()
 
333
412
        self.screen.register_palette((
 
335
 
                 u"default", u"default", None),
 
337
 
                 u"default", u"default", u"bold"),
 
339
 
                 u"default", u"default", u"underline"),
 
341
 
                 u"default", u"default", u"standout"),
 
342
 
                (u"bold-underline-blink",
 
343
 
                 u"default", u"default", (u"bold", u"underline")),
 
345
 
                 u"default", u"default", (u"bold", u"standout")),
 
346
 
                (u"underline-blink-standout",
 
347
 
                 u"default", u"default", (u"underline", u"standout")),
 
348
 
                (u"bold-underline-blink-standout",
 
349
 
                 u"default", u"default", (u"bold", u"underline",
 
 
414
                 "default", "default", None),
 
 
416
                 "bold", "default", "bold"),
 
 
418
                 "underline,blink", "default", "underline,blink"),
 
 
420
                 "standout", "default", "standout"),
 
 
421
                ("bold-underline-blink",
 
 
422
                 "bold,underline,blink", "default",
 
 
423
                 "bold,underline,blink"),
 
 
425
                 "bold,standout", "default", "bold,standout"),
 
 
426
                ("underline-blink-standout",
 
 
427
                 "underline,blink,standout", "default",
 
 
428
                 "underline,blink,standout"),
 
 
429
                ("bold-underline-blink-standout",
 
 
430
                 "bold,underline,blink,standout", "default",
 
 
431
                 "bold,underline,blink,standout"),
 
353
434
        if urwid.supports_unicode():
 
354
 
            self.divider = u"─" # \u2500
 
355
 
            #self.divider = u"━" # \u2501
 
 
435
            self.divider = "─"  # \u2500
 
357
 
            #self.divider = u"-" # \u002d
 
358
 
            self.divider = u"_" # \u005f
 
 
437
            self.divider = "_"  # \u005f
 
360
439
        self.screen.start()
 
362
441
        self.size = self.screen.get_cols_rows()
 
364
443
        self.clients = urwid.SimpleListWalker([])
 
365
444
        self.clients_dict = {}
 
367
446
        # We will add Text widgets to this list
 
 
447
        self.log = urwid.SimpleListWalker([])
 
369
448
        self.max_log_length = max_log_length
 
 
450
        self.log_level = log_level
 
371
452
        # We keep a reference to the log widget so we can remove it
 
372
453
        # from the ListWalker without it getting destroyed
 
373
454
        self.logbox = ConstrainedListBox(self.log)
 
375
456
        # This keeps track of whether self.uilist currently has
 
376
457
        # self.logbox in it or not
 
377
458
        self.log_visible = True
 
378
 
        self.log_wrap = u"any"
 
 
459
        self.log_wrap = "any"
 
381
 
        self.log_message_raw((u"bold",
 
382
 
                              u"Mandos Monitor version " + version))
 
383
 
        self.log_message_raw((u"bold",
 
 
462
        self.log_message_raw(("bold",
 
 
463
                              "Mandos Monitor version " + version))
 
 
464
        self.log_message_raw(("bold",
 
386
467
        self.busname = domain + '.Mandos'
 
387
 
        self.main_loop = gobject.MainLoop()
 
388
 
        self.bus = dbus.SystemBus()
 
389
 
        mandos_dbus_objc = self.bus.get_object(
 
390
 
            self.busname, u"/", follow_name_owner_changes=True)
 
391
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
395
 
            mandos_clients = (self.mandos_serv
 
396
 
                              .GetAllClientsWithProperties())
 
397
 
        except dbus.exceptions.DBusException:
 
398
 
            mandos_clients = dbus.Dictionary()
 
401
 
         .connect_to_signal(u"ClientRemoved",
 
402
 
                            self.find_and_remove_client,
 
403
 
                            dbus_interface=server_interface,
 
406
 
         .connect_to_signal(u"ClientAdded",
 
408
 
                            dbus_interface=server_interface,
 
411
 
         .connect_to_signal(u"ClientNotFound",
 
412
 
                            self.client_not_found,
 
413
 
                            dbus_interface=server_interface,
 
415
 
        for path, client in mandos_clients.iteritems():
 
416
 
            client_proxy_object = self.bus.get_object(self.busname,
 
418
 
            self.add_client(MandosClientWidget(server_proxy_object
 
421
 
                                               =client_proxy_object,
 
431
 
    def client_not_found(self, fingerprint, address):
 
432
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
433
 
                          u" could not be found" % (address,
 
 
468
        self.main_loop = GLib.MainLoop()
 
 
470
    def client_not_found(self, key_id, address):
 
 
471
        self.log_message("Client with address {} and key ID {} could"
 
 
472
                         " not be found".format(address, key_id))
 
436
474
    def rebuild(self):
 
437
475
        """This rebuilds the User Interface.
 
438
476
        Call this when the widget layout needs to change"""
 
440
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
441
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
442
 
                                       #header=urwid.Divider(),
 
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
 
481
                                       # header=urwid.Divider(),
 
444
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
 
483
                                       footer=urwid.Divider(
 
 
484
                                           div_char=self.divider)))
 
445
485
        if self.log_visible:
 
446
486
            self.uilist.append(self.logbox)
 
448
487
        self.topwidget = urwid.Pile(self.uilist)
 
450
 
    def log_message(self, message):
 
 
489
    def log_message(self, message, level=1):
 
 
490
        """Log message formatted with timestamp"""
 
 
491
        if level < self.log_level:
 
451
493
        timestamp = datetime.datetime.now().isoformat()
 
452
 
        self.log_message_raw(timestamp + u": " + message)
 
454
 
    def log_message_raw(self, markup):
 
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
 
497
    def log_message_raw(self, markup, level=1):
 
455
498
        """Add a log message to the log buffer."""
 
 
499
        if level < self.log_level:
 
456
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
457
 
        if (self.max_log_length
 
458
 
            and len(self.log) > self.max_log_length):
 
459
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
460
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
461
 
                              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-1]
 
 
505
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
464
509
    def toggle_log_display(self):
 
465
510
        """Toggle visibility of the log buffer."""
 
466
511
        self.log_visible = not self.log_visible
 
468
 
        self.log_message(u"Log visibility changed to: "
 
469
 
                         + unicode(self.log_visible))
 
 
513
        self.log_message("Log visibility changed to: {}"
 
 
514
                         .format(self.log_visible), level=0)
 
471
516
    def change_log_display(self):
 
472
517
        """Change type of log display.
 
473
518
        Currently, this toggles wrapping of text lines."""
 
474
 
        if self.log_wrap == u"clip":
 
475
 
            self.log_wrap = u"any"
 
 
519
        if self.log_wrap == "clip":
 
 
520
            self.log_wrap = "any"
 
477
 
            self.log_wrap = u"clip"
 
 
522
            self.log_wrap = "clip"
 
478
523
        for textwidget in self.log:
 
479
524
            textwidget.set_wrap_mode(self.log_wrap)
 
480
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
482
 
    def find_and_remove_client(self, path, name):
 
483
 
        """Find an client from its object path and remove it.
 
485
 
        This is connected to the ClientRemoved signal from the
 
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
 
528
    def find_and_remove_client(self, path, interfaces):
 
 
529
        """Find a client by its object path and remove it.
 
 
531
        This is connected to the InterfacesRemoved signal from the
 
486
532
        Mandos server object."""
 
 
533
        if client_interface not in interfaces:
 
 
534
            # Not a Mandos client object; ignore
 
488
537
            client = self.clients_dict[path]
 
492
 
        self.remove_client(client, path)
 
494
 
    def add_new_client(self, path):
 
 
540
            self.log_message("Unknown client {!r} removed"
 
 
545
    def add_new_client(self, path, ifs_and_props):
 
 
546
        """Find a client by its object path and remove it.
 
 
548
        This is connected to the InterfacesAdded signal from the
 
 
549
        Mandos server object.
 
 
551
        if client_interface not in ifs_and_props:
 
 
552
            # Not a Mandos client object; ignore
 
495
554
        client_proxy_object = self.bus.get_object(self.busname, path)
 
496
 
        self.add_client(MandosClientWidget(server_proxy_object
 
499
 
                                           =client_proxy_object,
 
 
555
        self.add_client(MandosClientWidget(
 
 
556
            server_proxy_object=self.mandos_serv,
 
 
557
            proxy_object=client_proxy_object,
 
 
558
            update_hook=self.refresh,
 
 
559
            delete_hook=self.remove_client,
 
 
560
            logger=self.log_message,
 
 
561
            properties=dict(ifs_and_props[client_interface])),
 
508
564
    def add_client(self, client, path=None):
 
509
565
        self.clients.append(client)
 
511
567
            path = client.proxy.object_path
 
512
568
        self.clients_dict[path] = client
 
513
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
 
516
572
    def remove_client(self, client, path=None):
 
517
573
        self.clients.remove(client)
 
519
575
            path = client.proxy.object_path
 
520
576
        del self.clients_dict[path]
 
521
 
        if not self.clients_dict:
 
522
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
523
 
            # is completely emptied, we need to recreate it.
 
524
 
            self.clients = urwid.SimpleListWalker([])
 
528
579
    def refresh(self):
 
529
580
        """Redraw the screen"""
 
530
581
        canvas = self.topwidget.render(self.size, focus=True)
 
531
582
        self.screen.draw_screen(self.size, canvas)
 
534
585
        """Start the main loop and exit when it's done."""
 
 
586
        self.bus = dbus.SystemBus()
 
 
587
        mandos_dbus_objc = self.bus.get_object(
 
 
588
            self.busname, "/", follow_name_owner_changes=True)
 
 
589
        self.mandos_serv = dbus.Interface(
 
 
590
            mandos_dbus_objc, dbus_interface=server_interface)
 
 
592
            mandos_clients = (self.mandos_serv
 
 
593
                              .GetAllClientsWithProperties())
 
 
594
            if not mandos_clients:
 
 
595
                self.log_message_raw(("bold",
 
 
596
                                      "Note: Server has no clients."))
 
 
597
        except dbus.exceptions.DBusException:
 
 
598
            self.log_message_raw(("bold",
 
 
599
                                  "Note: No Mandos server running."))
 
 
600
            mandos_clients = dbus.Dictionary()
 
 
603
         .connect_to_signal("InterfacesRemoved",
 
 
604
                            self.find_and_remove_client,
 
 
605
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
608
         .connect_to_signal("InterfacesAdded",
 
 
610
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
 
613
         .connect_to_signal("ClientNotFound",
 
 
614
                            self.client_not_found,
 
 
615
                            dbus_interface=server_interface,
 
 
617
        for path, client in mandos_clients.items():
 
 
618
            client_proxy_object = self.bus.get_object(self.busname,
 
 
620
            self.add_client(MandosClientWidget(
 
 
621
                server_proxy_object=self.mandos_serv,
 
 
622
                proxy_object=client_proxy_object,
 
 
624
                update_hook=self.refresh,
 
 
625
                delete_hook=self.remove_client,
 
 
626
                logger=self.log_message),
 
536
 
        self._input_callback_tag = (gobject.io_add_watch
 
 
630
        self._input_callback_tag = (
 
 
632
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
 
633
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
540
635
        self.main_loop.run()
 
541
636
        # Main loop has finished, we should close everything now
 
542
 
        gobject.source_remove(self._input_callback_tag)
 
 
637
        GLib.source_remove(self._input_callback_tag)
 
 
638
        with warnings.catch_warnings():
 
 
639
            warnings.simplefilter("ignore", BytesWarning)
 
546
643
        self.main_loop.quit()
 
548
645
    def process_input(self, source, condition):
 
549
646
        keys = self.screen.get_input()
 
550
 
        translations = { u"ctrl n": u"down",      # Emacs
 
551
 
                         u"ctrl p": u"up",        # Emacs
 
552
 
                         u"ctrl v": u"page down", # Emacs
 
553
 
                         u"meta v": u"page up",   # Emacs
 
554
 
                         u" ": u"page down",      # less
 
555
 
                         u"f": u"page down",      # less
 
556
 
                         u"b": u"page up",        # less
 
 
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
 
562
659
                key = translations[key]
 
563
660
            except KeyError:    # :-)
 
566
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
569
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
570
667
                self.size = self.screen.get_cols_rows()
 
572
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
574
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
575
673
                self.toggle_log_display()
 
577
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
578
676
                self.change_log_display()
 
580
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
581
679
                if not self.log_visible:
 
582
680
                    self.log_visible = True
 
584
 
                self.log_message_raw((u"bold",
 
588
 
                                            u"l: Log window toggle",
 
589
 
                                            u"TAB: Switch window",
 
591
 
                self.log_message_raw((u"bold",
 
597
 
                                             u"s: Start new checker",
 
 
682
                self.log_message_raw(("bold",
 
 
686
                                            "l: Log window toggle",
 
 
687
                                            "TAB: Switch window",
 
 
688
                                            "w: Wrap (log lines)",
 
 
689
                                            "v: Toggle verbose log",
 
 
691
                self.log_message_raw(("bold",
 
 
697
                                             "s: Start new checker",
 
602
704
                if self.topwidget.get_focus() is self.logbox:
 
603
705
                    self.topwidget.set_focus(0)
 
605
707
                    self.topwidget.set_focus(self.logbox)
 
607
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
609
 
            #    pass            # xxx end-of-buffer
 
610
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
612
 
            #    pass            # xxx beginning-of-buffer
 
613
 
            #elif key == u"ctrl e" or key == u"$":
 
614
 
            #    pass            # xxx move-end-of-line
 
615
 
            #elif key == u"ctrl a" or key == u"^":
 
616
 
            #    pass            # xxx move-beginning-of-line
 
617
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
619
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
622
 
            #    pass            # scroll up log
 
624
 
            #    pass            # scroll down log
 
 
710
                if self.log_level == 0:
 
 
712
                    self.log_message("Verbose mode: Off")
 
 
715
                    self.log_message("Verbose mode: On")
 
 
716
            # elif (key == "end" or key == "meta >" or key == "G"
 
 
718
            #     pass            # xxx end-of-buffer
 
 
719
            # elif (key == "home" or key == "meta <" or key == "g"
 
 
721
            #     pass            # xxx beginning-of-buffer
 
 
722
            # elif key == "ctrl e" or key == "$":
 
 
723
            #     pass            # xxx move-end-of-line
 
 
724
            # elif key == "ctrl a" or key == "^":
 
 
725
            #     pass            # xxx move-beginning-of-line
 
 
726
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
 
728
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
 
731
            #     pass            # scroll up log
 
 
733
            #     pass            # scroll down log
 
625
734
            elif self.topwidget.selectable():
 
626
735
                self.topwidget.keypress(self.size, key)
 
630
740
ui = UserInterface()
 
634
 
    ui.log_message(unicode(e))
 
 
743
except KeyboardInterrupt:
 
 
745
except Exception as e:
 
 
746
    ui.log_message(str(e))