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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.
 
 
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# 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/>.
 
 
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# 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
 
36
 
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.
 
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
 
41
 
    urwid.curses_display.curses.A_BLINK)
 
 
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    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()"
 
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    d, t = iso.split(u"T", 1)
 
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    year, month, day = d.split(u"-", 2)
 
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    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
 
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                             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
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
65
 
        self.proxy = proxy_object # Mandos Client proxy object
 
67
 
        self.properties = dict()
 
68
 
        self.proxy.connect_to_signal(u"PropertyChanged",
 
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                                     self.property_changed,
 
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        self.properties.update(
 
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            self.proxy.GetAll(client_interface,
 
75
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
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        #XXX This break good super behaviour!
 
78
 
#        super(MandosClientPropertyCache, self).__init__(
 
81
 
    def property_changed(self, property=None, value=None):
 
82
 
        """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
 
 
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        It updates the changed properties in the "properties" dict.
 
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        # Update properties dict with new value
 
86
 
        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
 
97
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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
 
104
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        self._update_timer_callback_tag = None
 
105
 
        self.last_checker_failed = False
 
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        # The widget shown normally
 
108
 
        self._text_widget = urwid.Text(u"")
 
 
138
        self._text_widget = urwid.Text("")
 
109
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        # The widget shown when we have focus
 
110
 
        self._focus_text_widget = urwid.Text(u"")
 
111
 
        super(MandosClientWidget, self).__init__(
 
112
 
            update_hook=update_hook, delete_hook=delete_hook,
 
 
140
        self._focus_text_widget = urwid.Text("")
 
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
 
115
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        self.opened = False
 
116
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
 
                                     self.checker_completed,
 
120
 
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
 
                                     self.checker_started,
 
124
 
        self.proxy.connect_to_signal(u"GotSecret",
 
128
 
        self.proxy.connect_to_signal(u"NeedApproval",
 
132
 
        self.proxy.connect_to_signal(u"Rejected",
 
136
 
        last_checked_ok = isoformat_to_datetime(self.properties
 
138
 
        if last_checked_ok is None:
 
139
 
            self.last_checker_failed = True
 
141
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
147
 
        if self.last_checker_failed:
 
148
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
 
145
        self.match_objects = (
 
 
146
            self.proxy.connect_to_signal("CheckerCompleted",
 
 
147
                                         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)
 
 
169
    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
 
150
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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
 
152
182
    def checker_completed(self, exitstatus, condition, command):
 
153
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        if exitstatus == 0:
 
154
 
            if self.last_checker_failed:
 
155
 
                self.last_checker_failed = False
 
156
 
                gobject.source_remove(self._update_timer_callback_tag)
 
157
 
                self._update_timer_callback_tag = None
 
158
 
            #self.logger(u'Checker for client %s (command "%s")'
 
160
 
            #            % (self.properties[u"Name"], command))
 
 
184
            self.logger('Checker for client {} (command "{}")'
 
 
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                        ' succeeded'.format(self.properties["Name"],
 
164
 
        if not self.last_checker_failed:
 
165
 
            self.last_checker_failed = True
 
166
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
169
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        if os.WIFEXITED(condition):
 
170
 
            self.logger(u'Checker for client %s (command "%s")'
 
171
 
                        u' failed with exit code %s'
 
172
 
                        % (self.properties[u"Name"], command,
 
173
 
                           os.WEXITSTATUS(condition)))
 
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
 
193
                        .format(self.properties["Name"], command,
 
 
194
                                os.WEXITSTATUS(condition)))
 
174
195
        elif os.WIFSIGNALED(condition):
 
175
 
            self.logger(u'Checker for client %s (command "%s")'
 
176
 
                        u' was killed by signal %s'
 
177
 
                        % (self.properties[u"Name"], command,
 
178
 
                           os.WTERMSIG(condition)))
 
179
 
        elif os.WCOREDUMP(condition):
 
180
 
            self.logger(u'Checker for client %s (command "%s")'
 
182
 
                        % (self.properties[u"Name"], command))
 
184
 
            self.logger(u'Checker for client %s completed'
 
 
196
            self.logger('Checker for client {} (command "{}") was'
 
 
197
                        ' killed by signal {}'
 
 
198
                        .format(self.properties["Name"], command,
 
 
199
                                os.WTERMSIG(condition)))
 
188
202
    def checker_started(self, command):
 
189
 
        #self.logger(u'Client %s started checker "%s"'
 
190
 
        #            % (self.properties[u"Name"], unicode(command)))
 
 
203
        """Server signals that a checker started."""
 
 
204
        self.logger('Client {} started checker "{}"'
 
 
205
                    .format(self.properties["Name"],
 
193
208
    def got_secret(self):
 
194
 
        self.last_checker_failed = False
 
195
 
        self.logger(u'Client %s received its secret'
 
196
 
                    % self.properties[u"Name"])
 
 
209
        self.logger('Client {} received its secret'
 
 
210
                    .format(self.properties["Name"]))
 
198
212
    def need_approval(self, timeout, default):
 
200
 
            message = u'Client %s needs approval within %s seconds'
 
 
214
            message = 'Client {} needs approval within {} seconds'
 
202
 
            message = u'Client %s will get its secret in %s seconds'
 
204
 
                    % (self.properties[u"Name"], timeout/1000))
 
 
216
            message = 'Client {} will get its secret in {} seconds'
 
 
217
        self.logger(message.format(self.properties["Name"],
 
206
220
    def rejected(self, reason):
 
207
 
        self.logger(u'Client %s was rejected; reason: %s'
 
208
 
                    % (self.properties[u"Name"], reason))
 
 
221
        self.logger('Client {} was rejected; reason: {}'
 
 
222
                    .format(self.properties["Name"], reason))
 
210
224
    def selectable(self):
 
211
225
        """Make this a "selectable" widget.
 
212
226
        This overrides the method from urwid.FlowWidget."""
 
215
 
    def rows(self, (maxcol,), focus=False):
 
 
229
    def rows(self, maxcolrow, focus=False):
 
216
230
        """How many rows this widget will occupy might depend on
 
217
231
        whether we have focus or not.
 
218
232
        This overrides the method from urwid.FlowWidget"""
 
219
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
 
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
221
235
    def current_widget(self, focus=False):
 
222
236
        if focus or self.opened:
 
223
237
            return self._focus_widget
 
224
238
        return self._widget
 
226
240
    def update(self):
 
227
241
        "Called when what is visible on the screen should be updated."
 
228
242
        # How to add standout mode to a style
 
229
 
        with_standout = { u"normal": u"standout",
 
230
 
                          u"bold": u"bold-standout",
 
232
 
                              u"underline-blink-standout",
 
233
 
                          u"bold-underline-blink":
 
234
 
                              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",
 
237
251
        # Rebuild focus and non-focus widgets using current properties
 
239
253
        # Base part of a client. Name!
 
240
 
        base = (u'%(name)s: '
 
241
 
                      % {u"name": self.properties[u"Name"]})
 
242
 
        if not self.properties[u"Enabled"]:
 
243
 
            message = u"DISABLED"
 
244
 
        elif self.properties[u"ApprovalPending"]:
 
245
 
            if self.properties[u"ApprovedByDefault"]:
 
246
 
                message = u"Connection established to client. (d)eny?"
 
248
 
                message = u"Seeks approval to send secret. (a)pprove?"
 
249
 
        elif self.last_checker_failed:
 
250
 
            timeout = datetime.timedelta(milliseconds
 
253
 
            last_ok = isoformat_to_datetime(
 
254
 
                max((self.properties[u"LastCheckedOK"]
 
255
 
                     or self.properties[u"Created"]),
 
256
 
                    self.properties[u"LastEnabled"]))
 
257
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
 
258
 
            message = (u'A checker has failed! Time until client'
 
260
 
                           % unicode(timer).rsplit(".", 1)[0])
 
 
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)
 
263
 
        self._text = "%s%s" % (base, message)
 
 
291
            self.using_timer(False)
 
 
292
        self._text = "{}{}".format(base, message)
 
265
294
        if not urwid.supports_unicode():
 
266
295
            self._text = self._text.encode("ascii", "replace")
 
267
 
        textlist = [(u"normal", self._text)]
 
 
296
        textlist = [("normal", self._text)]
 
268
297
        self._text_widget.set_text(textlist)
 
269
298
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
277
306
        # Run update hook, if any
 
278
307
        if self.update_hook is not None:
 
279
308
            self.update_hook()
 
281
310
    def update_timer(self):
 
 
311
        """called by GLib. Will indefinitely loop until
 
 
312
        GLib.source_remove() on tag is called
 
284
315
        return True             # Keep calling this
 
 
317
    def delete(self, **kwargs):
 
287
318
        if self._update_timer_callback_tag is not None:
 
288
 
            gobject.source_remove(self._update_timer_callback_tag)
 
 
319
            GLib.source_remove(self._update_timer_callback_tag)
 
289
320
            self._update_timer_callback_tag = None
 
 
321
        for match in self.match_objects:
 
 
323
        self.match_objects = ()
 
290
324
        if self.delete_hook is not None:
 
291
325
            self.delete_hook(self)
 
293
 
    def render(self, (maxcol,), focus=False):
 
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
 
 
328
    def render(self, maxcolrow, focus=False):
 
294
329
        """Render differently if we have focus.
 
295
330
        This overrides the method from urwid.FlowWidget"""
 
296
 
        return self.current_widget(focus).render((maxcol,),
 
 
331
        return self.current_widget(focus).render(maxcolrow,
 
299
 
    def keypress(self, (maxcol,), key):
 
 
334
    def keypress(self, maxcolrow, key):
 
301
336
        This overrides the method from urwid.FlowWidget"""
 
303
 
            self.proxy.Enable(dbus_interface = client_interface)
 
305
 
            self.proxy.Disable(dbus_interface = client_interface)
 
 
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)
 
307
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
308
 
                               dbus_interface = client_interface)
 
 
347
                               dbus_interface=client_interface,
 
310
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
311
 
                                  dbus_interface = client_interface)
 
312
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
 
351
                               dbus_interface=client_interface,
 
 
353
        elif key == "R" or key == "_" or key == "ctrl k":
 
313
354
            self.server_proxy_object.RemoveClient(self.proxy
 
316
 
            self.proxy.StartChecker(dbus_interface = client_interface)
 
318
 
            self.proxy.StopChecker(dbus_interface = client_interface)
 
320
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
 
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,
 
322
 
#         elif key == u"p" or key == "=":
 
 
369
#         elif key == "p" or key == "=":
 
323
370
#             self.proxy.pause()
 
324
 
#         elif key == u"u" or key == ":":
 
 
371
#         elif key == "u" or key == ":":
 
325
372
#             self.proxy.unpause()
 
326
 
#         elif key == u"RET":
 
329
 
#            self.proxy.Approve(True)
 
331
 
#            self.proxy.Approve(False)
 
335
 
    def property_changed(self, property=None, value=None,
 
337
 
        """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.
 
338
380
        This overrides the method from MandosClientPropertyCache"""
 
339
 
        property_name = unicode(property)
 
340
 
        old_value = self.properties.get(property_name)
 
341
 
        super(MandosClientWidget, self).property_changed(
 
342
 
            property=property, value=value, *args, **kwargs)
 
343
 
        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):
 
 
361
404
    """This is the entire user interface - the whole screen
 
362
405
    with boxes, lists of client widgets, etc.
 
364
 
    def __init__(self, max_log_length=1000):
 
 
407
    def __init__(self, max_log_length=1000, log_level=1):
 
365
408
        DBusGMainLoop(set_as_default=True)
 
367
410
        self.screen = urwid.curses_display.Screen()
 
369
412
        self.screen.register_palette((
 
371
 
                 u"default", u"default", None),
 
373
 
                 u"default", u"default", u"bold"),
 
375
 
                 u"default", u"default", u"underline"),
 
377
 
                 u"default", u"default", u"standout"),
 
378
 
                (u"bold-underline-blink",
 
379
 
                 u"default", u"default", (u"bold", u"underline")),
 
381
 
                 u"default", u"default", (u"bold", u"standout")),
 
382
 
                (u"underline-blink-standout",
 
383
 
                 u"default", u"default", (u"underline", u"standout")),
 
384
 
                (u"bold-underline-blink-standout",
 
385
 
                 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"),
 
389
434
        if urwid.supports_unicode():
 
390
 
            self.divider = u"─" # \u2500
 
391
 
            #self.divider = u"━" # \u2501
 
 
435
            self.divider = "─"  # \u2500
 
393
 
            #self.divider = u"-" # \u002d
 
394
 
            self.divider = u"_" # \u005f
 
 
437
            self.divider = "_"  # \u005f
 
396
439
        self.screen.start()
 
398
441
        self.size = self.screen.get_cols_rows()
 
400
443
        self.clients = urwid.SimpleListWalker([])
 
401
444
        self.clients_dict = {}
 
403
446
        # We will add Text widgets to this list
 
 
447
        self.log = urwid.SimpleListWalker([])
 
405
448
        self.max_log_length = max_log_length
 
 
450
        self.log_level = log_level
 
407
452
        # We keep a reference to the log widget so we can remove it
 
408
453
        # from the ListWalker without it getting destroyed
 
409
454
        self.logbox = ConstrainedListBox(self.log)
 
411
456
        # This keeps track of whether self.uilist currently has
 
412
457
        # self.logbox in it or not
 
413
458
        self.log_visible = True
 
414
 
        self.log_wrap = u"any"
 
 
459
        self.log_wrap = "any"
 
417
 
        self.log_message_raw((u"bold",
 
418
 
                              u"Mandos Monitor version " + version))
 
419
 
        self.log_message_raw((u"bold",
 
 
462
        self.log_message_raw(("bold",
 
 
463
                              "Mandos Monitor version " + version))
 
 
464
        self.log_message_raw(("bold",
 
422
467
        self.busname = domain + '.Mandos'
 
423
 
        self.main_loop = gobject.MainLoop()
 
424
 
        self.bus = dbus.SystemBus()
 
425
 
        mandos_dbus_objc = self.bus.get_object(
 
426
 
            self.busname, u"/", follow_name_owner_changes=True)
 
427
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
431
 
            mandos_clients = (self.mandos_serv
 
432
 
                              .GetAllClientsWithProperties())
 
433
 
        except dbus.exceptions.DBusException:
 
434
 
            mandos_clients = dbus.Dictionary()
 
437
 
         .connect_to_signal(u"ClientRemoved",
 
438
 
                            self.find_and_remove_client,
 
439
 
                            dbus_interface=server_interface,
 
442
 
         .connect_to_signal(u"ClientAdded",
 
444
 
                            dbus_interface=server_interface,
 
447
 
         .connect_to_signal(u"ClientNotFound",
 
448
 
                            self.client_not_found,
 
449
 
                            dbus_interface=server_interface,
 
451
 
        for path, client in mandos_clients.iteritems():
 
452
 
            client_proxy_object = self.bus.get_object(self.busname,
 
454
 
            self.add_client(MandosClientWidget(server_proxy_object
 
457
 
                                               =client_proxy_object,
 
467
 
    def client_not_found(self, fingerprint, address):
 
468
 
        self.log_message((u"Client with address %s and fingerprint %s"
 
469
 
                          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))
 
472
474
    def rebuild(self):
 
473
475
        """This rebuilds the User Interface.
 
474
476
        Call this when the widget layout needs to change"""
 
476
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
478
        # self.uilist.append(urwid.ListBox(self.clients))
 
477
479
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
 
                                       #header=urwid.Divider(),
 
 
481
                                       # header=urwid.Divider(),
 
482
 
                                       urwid.Divider(div_char=
 
 
483
                                       footer=urwid.Divider(
 
 
484
                                           div_char=self.divider)))
 
484
485
        if self.log_visible:
 
485
486
            self.uilist.append(self.logbox)
 
487
487
        self.topwidget = urwid.Pile(self.uilist)
 
489
 
    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:
 
490
493
        timestamp = datetime.datetime.now().isoformat()
 
491
 
        self.log_message_raw(timestamp + u": " + message)
 
493
 
    def log_message_raw(self, markup):
 
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
 
497
    def log_message_raw(self, markup, level=1):
 
494
498
        """Add a log message to the log buffer."""
 
 
499
        if level < self.log_level:
 
495
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
496
 
        if (self.max_log_length
 
497
 
            and len(self.log) > self.max_log_length):
 
498
 
            del self.log[0:len(self.log)-self.max_log_length-1]
 
499
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
500
 
                              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,
 
503
509
    def toggle_log_display(self):
 
504
510
        """Toggle visibility of the log buffer."""
 
505
511
        self.log_visible = not self.log_visible
 
507
 
        self.log_message(u"Log visibility changed to: "
 
508
 
                         + unicode(self.log_visible))
 
 
513
        self.log_message("Log visibility changed to: {}"
 
 
514
                         .format(self.log_visible), level=0)
 
510
516
    def change_log_display(self):
 
511
517
        """Change type of log display.
 
512
518
        Currently, this toggles wrapping of text lines."""
 
513
 
        if self.log_wrap == u"clip":
 
514
 
            self.log_wrap = u"any"
 
 
519
        if self.log_wrap == "clip":
 
 
520
            self.log_wrap = "any"
 
516
 
            self.log_wrap = u"clip"
 
 
522
            self.log_wrap = "clip"
 
517
523
        for textwidget in self.log:
 
518
524
            textwidget.set_wrap_mode(self.log_wrap)
 
519
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
 
    def find_and_remove_client(self, path, name):
 
522
 
        """Find an client from its object path and remove it.
 
524
 
        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
 
525
532
        Mandos server object."""
 
 
533
        if client_interface not in interfaces:
 
 
534
            # Not a Mandos client object; ignore
 
527
537
            client = self.clients_dict[path]
 
531
 
        self.remove_client(client, path)
 
533
 
    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
 
534
554
        client_proxy_object = self.bus.get_object(self.busname, path)
 
535
 
        self.add_client(MandosClientWidget(server_proxy_object
 
538
 
                                           =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])),
 
547
564
    def add_client(self, client, path=None):
 
548
565
        self.clients.append(client)
 
550
567
            path = client.proxy.object_path
 
551
568
        self.clients_dict[path] = client
 
552
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
 
569
        self.clients.sort(key=lambda c: c.properties["Name"])
 
555
572
    def remove_client(self, client, path=None):
 
556
573
        self.clients.remove(client)
 
558
575
            path = client.proxy.object_path
 
559
576
        del self.clients_dict[path]
 
560
 
        if not self.clients_dict:
 
561
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
562
 
            # is completely emptied, we need to recreate it.
 
563
 
            self.clients = urwid.SimpleListWalker([])
 
567
579
    def refresh(self):
 
568
580
        """Redraw the screen"""
 
569
581
        canvas = self.topwidget.render(self.size, focus=True)
 
570
582
        self.screen.draw_screen(self.size, canvas)
 
573
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),
 
575
 
        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,
 
579
635
        self.main_loop.run()
 
580
636
        # Main loop has finished, we should close everything now
 
581
 
        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)
 
585
643
        self.main_loop.quit()
 
587
645
    def process_input(self, source, condition):
 
588
646
        keys = self.screen.get_input()
 
589
 
        translations = { u"ctrl n": u"down",      # Emacs
 
590
 
                         u"ctrl p": u"up",        # Emacs
 
591
 
                         u"ctrl v": u"page down", # Emacs
 
592
 
                         u"meta v": u"page up",   # Emacs
 
593
 
                         u" ": u"page down",      # less
 
594
 
                         u"f": u"page down",      # less
 
595
 
                         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
 
601
659
                key = translations[key]
 
602
660
            except KeyError:    # :-)
 
605
 
            if key == u"q" or key == u"Q":
 
 
663
            if key == "q" or key == "Q":
 
608
 
            elif key == u"window resize":
 
 
666
            elif key == "window resize":
 
609
667
                self.size = self.screen.get_cols_rows()
 
611
 
            elif key == u"\f":  # Ctrl-L
 
 
669
            elif key == "ctrl l":
 
613
 
            elif key == u"l" or key == u"D":
 
 
672
            elif key == "l" or key == "D":
 
614
673
                self.toggle_log_display()
 
616
 
            elif key == u"w" or key == u"i":
 
 
675
            elif key == "w" or key == "i":
 
617
676
                self.change_log_display()
 
619
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
 
678
            elif key == "?" or key == "f1" or key == "esc":
 
620
679
                if not self.log_visible:
 
621
680
                    self.log_visible = True
 
623
 
                self.log_message_raw((u"bold",
 
627
 
                                            u"l: Log window toggle",
 
628
 
                                            u"TAB: Switch window",
 
630
 
                self.log_message_raw((u"bold",
 
636
 
                                             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",
 
643
704
                if self.topwidget.get_focus() is self.logbox:
 
644
705
                    self.topwidget.set_focus(0)
 
646
707
                    self.topwidget.set_focus(self.logbox)
 
648
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
650
 
            #    pass            # xxx end-of-buffer
 
651
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
653
 
            #    pass            # xxx beginning-of-buffer
 
654
 
            #elif key == u"ctrl e" or key == u"$":
 
655
 
            #    pass            # xxx move-end-of-line
 
656
 
            #elif key == u"ctrl a" or key == u"^":
 
657
 
            #    pass            # xxx move-beginning-of-line
 
658
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
660
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
663
 
            #    pass            # scroll up log
 
665
 
            #    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
 
666
734
            elif self.topwidget.selectable():
 
667
735
                self.topwidget.keypress(self.size, key)
 
671
740
ui = UserInterface()
 
674
743
except KeyboardInterrupt:
 
677
 
    ui.log_message(unicode(e))
 
 
745
except Exception as e:
 
 
746
    ui.log_message(str(e))