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#!/usr/bin/python3 -bbI
 
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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
 
17
 
#     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, print_function,
 
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    from future_builtins import *
 
 
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from __future__ import division, absolute_import, with_statement
 
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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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if sys.version_info.major == 2:
 
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log = logging.getLogger(os.path.basename(sys.argv[0]))
 
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logging.basicConfig(level="NOTSET", # Show all messages
 
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                    format="%(message)s") # Show basic log messages
 
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logging.captureWarnings(True)   # Show warnings via the logging system
 
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locale.setlocale(locale.LC_ALL, "")
 
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logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
 
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locale.setlocale(locale.LC_ALL, u'')
 
 
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logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
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# Some useful constants
 
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domain = "se.recompile"
 
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server_interface = domain + ".Mandos"
 
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client_interface = domain + ".Mandos.Client"
 
70
 
    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):
 
76
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
79
 
    d, t = iso.split("T", 1)
 
80
 
    year, month, day = d.split("-", 2)
 
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    hour, minute, second = t.split(":", 2)
 
82
 
    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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class MandosClientPropertyCache:
 
 
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domain = 'se.bsnet.fukt'
 
 
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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.
 
 
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urwid.curses_display.curses.A_UNDERLINE |= (
 
 
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    urwid.curses_display.curses.A_BLINK)
 
 
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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
 
97
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
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        self.proxy = proxy_object  # Mandos Client proxy object
 
99
 
        self.properties = dict() if properties is None else properties
 
100
 
        self.property_changed_match = (
 
101
 
            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)
 
113
 
    def properties_changed(self, interface, properties, invalidated):
 
114
 
        """This is called whenever we get a PropertiesChanged signal
 
115
 
        It updates the changed properties in the "properties" dict.
 
 
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    def __init__(self, proxy_object=None, *args, **kwargs):
 
 
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        self.proxy = proxy_object # Mandos Client proxy object
 
 
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        self.properties = dict()
 
 
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        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,
 
 
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                              dbus_interface = dbus.PROPERTIES_IFACE))
 
 
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        #XXX This break good super behaviour!
 
 
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#        super(MandosClientPropertyCache, self).__init__(
 
 
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    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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        # Update properties dict with new value
 
118
 
        if interface == client_interface:
 
119
 
            self.properties.update(properties)
 
122
 
        self.property_changed_match.remove()
 
 
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        self.properties[property] = value
 
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class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
126
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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,
 
130
 
                 delete_hook=None, **kwargs):
 
 
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                 delete_hook=None, logger=None, *args, **kwargs):
 
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        # Called on update
 
132
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        self.update_hook = update_hook
 
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        # Called on delete
 
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        self.delete_hook = delete_hook
 
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        # Mandos Server proxy object
 
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        self.server_proxy_object = server_proxy_object
 
138
 
        self._update_timer_callback_tag = None
 
140
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        # The widget shown normally
 
141
 
        self._text_widget = urwid.Text("")
 
 
89
        self._text_widget = urwid.Text(u"")
 
142
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        # The widget shown when we have focus
 
143
 
        self._focus_text_widget = urwid.Text("")
 
144
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
91
        self._focus_text_widget = urwid.Text(u"")
 
 
92
        super(MandosClientWidget, self).__init__(
 
 
93
            update_hook=update_hook, delete_hook=delete_hook,
 
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        self.opened = False
 
148
 
        self.match_objects = (
 
149
 
            self.proxy.connect_to_signal("CheckerCompleted",
 
150
 
                                         self.checker_completed,
 
153
 
            self.proxy.connect_to_signal("CheckerStarted",
 
154
 
                                         self.checker_started,
 
157
 
            self.proxy.connect_to_signal("GotSecret",
 
161
 
            self.proxy.connect_to_signal("NeedApproval",
 
165
 
            self.proxy.connect_to_signal("Rejected",
 
169
 
        log.debug("Created client %s", self.properties["Name"])
 
171
 
    def using_timer(self, flag):
 
172
 
        """Call this method with True or False when timer should be
 
173
 
        activated or deactivated.
 
175
 
        if flag and self._update_timer_callback_tag is None:
 
176
 
            # Will update the shown timer value every second
 
177
 
            self._update_timer_callback_tag = (
 
178
 
                GLib.timeout_add(1000,
 
179
 
                                 glib_safely(self.update_timer)))
 
180
 
        elif not (flag or self._update_timer_callback_tag is None):
 
181
 
            GLib.source_remove(self._update_timer_callback_tag)
 
182
 
            self._update_timer_callback_tag = None
 
 
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        self.proxy.connect_to_signal(u"CheckerCompleted",
 
 
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                                     self.checker_completed,
 
 
101
        self.proxy.connect_to_signal(u"CheckerStarted",
 
 
102
                                     self.checker_started,
 
 
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        self.proxy.connect_to_signal(u"GotSecret",
 
 
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        self.proxy.connect_to_signal(u"NeedApproval",
 
 
113
        self.proxy.connect_to_signal(u"Rejected",
 
184
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    def checker_completed(self, exitstatus, condition, command):
 
185
119
        if exitstatus == 0:
 
186
 
            log.debug('Checker for client %s (command "%s")'
 
187
 
                      " succeeded", self.properties["Name"], command)
 
 
120
            #self.logger(u'Checker for client %s (command "%s")'
 
 
122
            #            % (self.properties[u"name"], command))
 
191
124
        if os.WIFEXITED(condition):
 
192
 
            log.info('Checker for client %s (command "%s") failed'
 
193
 
                     " with exit code %d", self.properties["Name"],
 
194
 
                     command, os.WEXITSTATUS(condition))
 
195
 
        elif os.WIFSIGNALED(condition):
 
196
 
            log.info('Checker for client %s (command "%s") was'
 
197
 
                     " killed by signal %d", self.properties["Name"],
 
198
 
                     command, os.WTERMSIG(condition))
 
 
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            self.logger(u'Checker for client %s (command "%s")'
 
 
126
                        u' failed with exit code %s'
 
 
127
                        % (self.properties[u"name"], command,
 
 
128
                           os.WEXITSTATUS(condition)))
 
 
130
        if os.WIFSIGNALED(condition):
 
 
131
            self.logger(u'Checker for client %s (command "%s")'
 
 
132
                        u' was killed by signal %s'
 
 
133
                        % (self.properties[u"name"], command,
 
 
134
                           os.WTERMSIG(condition)))
 
 
136
        if os.WCOREDUMP(condition):
 
 
137
            self.logger(u'Checker for client %s (command "%s")'
 
 
139
                        % (self.properties[u"name"], command))
 
 
140
        self.logger(u'Checker for client %s completed mysteriously')
 
201
142
    def checker_started(self, command):
 
202
 
        """Server signals that a checker started."""
 
203
 
        log.debug('Client %s started checker "%s"',
 
204
 
                  self.properties["Name"], command)
 
 
143
        #self.logger(u'Client %s started checker "%s"'
 
 
144
        #            % (self.properties[u"name"], unicode(command)))
 
206
147
    def got_secret(self):
 
207
 
        log.info("Client %s received its secret",
 
208
 
                 self.properties["Name"])
 
 
148
        self.logger(u'Client %s received its secret'
 
 
149
                    % self.properties[u"name"])
 
210
151
    def need_approval(self, timeout, default):
 
212
 
            message = "Client %s needs approval within %f seconds"
 
 
153
            message = u'Client %s needs approval within %s seconds'
 
214
 
            message = "Client %s will get its secret in %f seconds"
 
215
 
        log.info(message, self.properties["Name"], timeout/1000)
 
 
155
            message = u'Client %s will get its secret in %s seconds'
 
 
157
                    % (self.properties[u"name"], timeout/1000))
 
217
159
    def rejected(self, reason):
 
218
 
        log.info("Client %s was rejected; reason: %s",
 
219
 
                 self.properties["Name"], reason)
 
 
160
        self.logger(u'Client %s was rejected; reason: %s'
 
 
161
                    % (self.properties[u"name"], reason))
 
221
163
    def selectable(self):
 
222
164
        """Make this a "selectable" widget.
 
223
165
        This overrides the method from urwid.FlowWidget."""
 
226
 
    def rows(self, maxcolrow, focus=False):
 
 
168
    def rows(self, (maxcol,), focus=False):
 
227
169
        """How many rows this widget will occupy might depend on
 
228
170
        whether we have focus or not.
 
229
171
        This overrides the method from urwid.FlowWidget"""
 
230
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
 
172
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
232
174
    def current_widget(self, focus=False):
 
233
175
        if focus or self.opened:
 
234
176
            return self._focus_widget
 
235
177
        return self._widget
 
237
179
    def update(self):
 
238
180
        "Called when what is visible on the screen should be updated."
 
239
181
        # How to add standout mode to a style
 
240
 
        with_standout = {"normal": "standout",
 
241
 
                         "bold": "bold-standout",
 
243
 
                         "underline-blink-standout",
 
244
 
                         "bold-underline-blink":
 
245
 
                         "bold-underline-blink-standout",
 
 
182
        with_standout = { u"normal": u"standout",
 
 
183
                          u"bold": u"bold-standout",
 
 
185
                              u"underline-blink-standout",
 
 
186
                          u"bold-underline-blink":
 
 
187
                              u"bold-underline-blink-standout",
 
248
190
        # Rebuild focus and non-focus widgets using current properties
 
250
192
        # Base part of a client. Name!
 
251
 
        base = "{name}: ".format(name=self.properties["Name"])
 
252
 
        if not self.properties["Enabled"]:
 
254
 
            self.using_timer(False)
 
255
 
        elif self.properties["ApprovalPending"]:
 
256
 
            timeout = datetime.timedelta(
 
257
 
                milliseconds=self.properties["ApprovalDelay"])
 
258
 
            last_approval_request = isoformat_to_datetime(
 
259
 
                self.properties["LastApprovalRequest"])
 
260
 
            if last_approval_request is not None:
 
261
 
                timer = max(timeout - (datetime.datetime.utcnow()
 
262
 
                                       - last_approval_request),
 
263
 
                            datetime.timedelta())
 
265
 
                timer = datetime.timedelta()
 
266
 
            if self.properties["ApprovedByDefault"]:
 
267
 
                message = "Approval in {}. (d)eny?"
 
269
 
                message = "Denial in {}. (a)pprove?"
 
270
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
271
 
            self.using_timer(True)
 
272
 
        elif self.properties["LastCheckerStatus"] != 0:
 
273
 
            # When checker has failed, show timer until client expires
 
274
 
            expires = self.properties["Expires"]
 
276
 
                timer = datetime.timedelta(0)
 
278
 
                expires = (datetime.datetime.strptime
 
279
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
280
 
                timer = max(expires - datetime.datetime.utcnow(),
 
281
 
                            datetime.timedelta())
 
282
 
            message = ("A checker has failed! Time until client"
 
284
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
285
 
            self.using_timer(True)
 
 
193
        self._text = (u'%(name)s: '
 
 
194
                      % {u"name": self.properties[u"name"]})
 
 
196
        if self.properties[u"approved_pending"]:
 
 
197
            if self.properties[u"approved_by_default"]:
 
 
198
                self._text += u"Connection established to client. (d)eny?"
 
 
200
                self._text += u"Seeks approval to send secret. (a)pprove?"
 
288
 
            self.using_timer(False)
 
289
 
        self._text = "{}{}".format(base, message)
 
 
202
            self._text += (u'%(enabled)s'
 
 
205
                                if self.properties[u"enabled"]
 
291
207
        if not urwid.supports_unicode():
 
292
208
            self._text = self._text.encode("ascii", "replace")
 
293
 
        textlist = [("normal", self._text)]
 
 
209
        textlist = [(u"normal", self._text)]
 
294
210
        self._text_widget.set_text(textlist)
 
295
211
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
303
219
        # Run update hook, if any
 
304
220
        if self.update_hook is not None:
 
305
221
            self.update_hook()
 
307
 
    def update_timer(self):
 
308
 
        """called by GLib. Will indefinitely loop until
 
309
 
        GLib.source_remove() on tag is called
 
312
 
        return True             # Keep calling this
 
314
 
    def delete(self, **kwargs):
 
315
 
        if self._update_timer_callback_tag is not None:
 
316
 
            GLib.source_remove(self._update_timer_callback_tag)
 
317
 
            self._update_timer_callback_tag = None
 
318
 
        for match in self.match_objects:
 
320
 
        self.match_objects = ()
 
321
224
        if self.delete_hook is not None:
 
322
225
            self.delete_hook(self)
 
323
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
325
 
    def render(self, maxcolrow, focus=False):
 
 
227
    def render(self, (maxcol,), focus=False):
 
326
228
        """Render differently if we have focus.
 
327
229
        This overrides the method from urwid.FlowWidget"""
 
328
 
        return self.current_widget(focus).render(maxcolrow,
 
 
230
        return self.current_widget(focus).render((maxcol,),
 
331
 
    def keypress(self, maxcolrow, key):
 
 
233
    def keypress(self, (maxcol,), key):
 
333
235
        This overrides the method from urwid.FlowWidget"""
 
335
 
            self.proxy.Set(client_interface, "Enabled",
 
336
 
                           dbus.Boolean(True), ignore_reply=True,
 
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
339
 
            self.proxy.Set(client_interface, "Enabled", False,
 
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
 
237
            self.proxy.Enable(dbus_interface = client_interface)
 
 
239
            self.proxy.Disable(dbus_interface = client_interface)
 
343
241
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
344
 
                               dbus_interface=client_interface,
 
 
242
                               dbus_interface = client_interface)
 
347
244
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
348
 
                               dbus_interface=client_interface,
 
350
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
 
245
                                  dbus_interface = client_interface)
 
 
246
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
351
247
            self.server_proxy_object.RemoveClient(self.proxy
 
355
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
356
 
                           dbus.Boolean(True), ignore_reply=True,
 
357
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
359
 
            self.proxy.Set(client_interface, "CheckerRunning",
 
360
 
                           dbus.Boolean(False), ignore_reply=True,
 
361
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
363
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
 
250
            self.proxy.StartChecker(dbus_interface = client_interface)
 
 
252
            self.proxy.StopChecker(dbus_interface = client_interface)
 
 
254
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
366
 
#         elif key == "p" or key == "=":
 
 
256
#         elif key == u"p" or key == "=":
 
367
257
#             self.proxy.pause()
 
368
 
#         elif key == "u" or key == ":":
 
 
258
#         elif key == u"u" or key == ":":
 
369
259
#             self.proxy.unpause()
 
 
260
#         elif key == u"RET":
 
 
263
#            self.proxy.Approve(True)
 
 
265
#            self.proxy.Approve(False)
 
375
 
    def properties_changed(self, interface, properties, invalidated):
 
376
 
        """Call self.update() if any properties changed.
 
 
269
    def property_changed(self, property=None, value=None,
 
 
271
        """Call self.update() if old value is not new value.
 
377
272
        This overrides the method from MandosClientPropertyCache"""
 
378
 
        old_values = {key: self.properties.get(key)
 
379
 
                      for key in properties.keys()}
 
380
 
        super(MandosClientWidget, self).properties_changed(
 
381
 
            interface, properties, invalidated)
 
382
 
        if any(old_values[key] != self.properties.get(key)
 
383
 
               for key in old_values):
 
 
273
        property_name = unicode(property)
 
 
274
        old_value = self.properties.get(property_name)
 
 
275
        super(MandosClientWidget, self).property_changed(
 
 
276
            property=property, value=value, *args, **kwargs)
 
 
277
        if self.properties.get(property_name) != old_value:
 
387
 
def glib_safely(func, retval=True):
 
388
 
    def safe_func(*args, **kwargs):
 
390
 
            return func(*args, **kwargs)
 
397
281
class ConstrainedListBox(urwid.ListBox):
 
398
282
    """Like a normal urwid.ListBox, but will consume all "up" or
 
399
283
    "down" key presses, thus not allowing any containing widgets to
 
400
284
    use them as an excuse to shift focus away from this widget.
 
402
 
    def keypress(self, *args, **kwargs):
 
403
 
        ret = (super(ConstrainedListBox, self)
 
404
 
               .keypress(*args, **kwargs))
 
405
 
        if ret in ("up", "down"):
 
 
286
    def keypress(self, (maxcol, maxrow), key):
 
 
287
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
 
288
        if ret in (u"up", u"down"):
 
 
293
class UserInterface(object):
 
411
294
    """This is the entire user interface - the whole screen
 
412
295
    with boxes, lists of client widgets, etc.
 
414
297
    def __init__(self, max_log_length=1000):
 
415
298
        DBusGMainLoop(set_as_default=True)
 
417
300
        self.screen = urwid.curses_display.Screen()
 
419
302
        self.screen.register_palette((
 
421
 
                 "default", "default", None),
 
423
 
                 "bold", "default", "bold"),
 
425
 
                 "underline,blink", "default", "underline,blink"),
 
427
 
                 "standout", "default", "standout"),
 
428
 
                ("bold-underline-blink",
 
429
 
                 "bold,underline,blink", "default",
 
430
 
                 "bold,underline,blink"),
 
432
 
                 "bold,standout", "default", "bold,standout"),
 
433
 
                ("underline-blink-standout",
 
434
 
                 "underline,blink,standout", "default",
 
435
 
                 "underline,blink,standout"),
 
436
 
                ("bold-underline-blink-standout",
 
437
 
                 "bold,underline,blink,standout", "default",
 
438
 
                 "bold,underline,blink,standout"),
 
 
304
                 u"default", u"default", None),
 
 
306
                 u"default", u"default", u"bold"),
 
 
308
                 u"default", u"default", u"underline"),
 
 
310
                 u"default", u"default", u"standout"),
 
 
311
                (u"bold-underline-blink",
 
 
312
                 u"default", u"default", (u"bold", u"underline")),
 
 
314
                 u"default", u"default", (u"bold", u"standout")),
 
 
315
                (u"underline-blink-standout",
 
 
316
                 u"default", u"default", (u"underline", u"standout")),
 
 
317
                (u"bold-underline-blink-standout",
 
 
318
                 u"default", u"default", (u"bold", u"underline",
 
441
322
        if urwid.supports_unicode():
 
442
 
            self.divider = "─"  # \u2500
 
 
323
            self.divider = u"─" # \u2500
 
 
324
            #self.divider = u"━" # \u2501
 
444
 
            self.divider = "_"  # \u005f
 
 
326
            #self.divider = u"-" # \u002d
 
 
327
            self.divider = u"_" # \u005f
 
446
329
        self.screen.start()
 
448
331
        self.size = self.screen.get_cols_rows()
 
450
333
        self.clients = urwid.SimpleListWalker([])
 
451
334
        self.clients_dict = {}
 
453
336
        # We will add Text widgets to this list
 
454
 
        self.log = urwid.SimpleListWalker([])
 
455
338
        self.max_log_length = max_log_length
 
457
340
        # We keep a reference to the log widget so we can remove it
 
458
341
        # from the ListWalker without it getting destroyed
 
459
342
        self.logbox = ConstrainedListBox(self.log)
 
461
344
        # This keeps track of whether self.uilist currently has
 
462
345
        # self.logbox in it or not
 
463
346
        self.log_visible = True
 
464
 
        self.log_wrap = "any"
 
466
 
        self.loghandler = UILogHandler(self)
 
 
347
        self.log_wrap = u"any"
 
469
 
        self.add_log_line(("bold",
 
470
 
                           "Mandos Monitor version " + version))
 
471
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
473
 
        self.busname = domain + ".Mandos"
 
474
 
        self.main_loop = GLib.MainLoop()
 
476
 
    def client_not_found(self, key_id, address):
 
477
 
        log.info("Client with address %s and key ID %s could"
 
478
 
                 " not be found", address, key_id)
 
 
350
        self.log_message_raw((u"bold",
 
 
351
                              u"Mandos Monitor version " + version))
 
 
352
        self.log_message_raw((u"bold",
 
 
355
        self.busname = domain + '.Mandos'
 
 
356
        self.main_loop = gobject.MainLoop()
 
 
357
        self.bus = dbus.SystemBus()
 
 
358
        mandos_dbus_objc = self.bus.get_object(
 
 
359
            self.busname, u"/", follow_name_owner_changes=True)
 
 
360
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
 
364
            mandos_clients = (self.mandos_serv
 
 
365
                              .GetAllClientsWithProperties())
 
 
366
        except dbus.exceptions.DBusException:
 
 
367
            mandos_clients = dbus.Dictionary()
 
 
370
         .connect_to_signal(u"ClientRemoved",
 
 
371
                            self.find_and_remove_client,
 
 
372
                            dbus_interface=server_interface,
 
 
375
         .connect_to_signal(u"ClientAdded",
 
 
377
                            dbus_interface=server_interface,
 
 
380
         .connect_to_signal(u"ClientNotFound",
 
 
381
                            self.client_not_found,
 
 
382
                            dbus_interface=server_interface,
 
 
384
        for path, client in mandos_clients.iteritems():
 
 
385
            client_proxy_object = self.bus.get_object(self.busname,
 
 
387
            self.add_client(MandosClientWidget(server_proxy_object
 
 
390
                                               =client_proxy_object,
 
 
400
    def client_not_found(self, fingerprint, address):
 
 
401
        self.log_message((u"Client with address %s and fingerprint %s"
 
 
402
                          u" could not be found" % (address,
 
480
405
    def rebuild(self):
 
481
406
        """This rebuilds the User Interface.
 
482
407
        Call this when the widget layout needs to change"""
 
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
485
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
487
 
                                       # header=urwid.Divider(),
 
 
409
        #self.uilist.append(urwid.ListBox(self.clients))
 
 
410
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
 
411
                                       #header=urwid.Divider(),
 
489
 
                                       footer=urwid.Divider(
 
490
 
                                           div_char=self.divider)))
 
 
413
                                       footer=urwid.Divider(div_char=self.divider)))
 
491
414
        if self.log_visible:
 
492
415
            self.uilist.append(self.logbox)
 
493
417
        self.topwidget = urwid.Pile(self.uilist)
 
495
 
    def add_log_line(self, markup):
 
 
419
    def log_message(self, message):
 
 
420
        timestamp = datetime.datetime.now().isoformat()
 
 
421
        self.log_message_raw(timestamp + u": " + message)
 
 
423
    def log_message_raw(self, markup):
 
 
424
        """Add a log message to the log buffer."""
 
496
425
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
 
497
 
        if self.max_log_length:
 
498
 
            if len(self.log) > self.max_log_length:
 
499
 
                del self.log[0:(len(self.log) - self.max_log_length)]
 
500
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
 
426
        if (self.max_log_length
 
 
427
            and len(self.log) > self.max_log_length):
 
 
428
            del self.log[0:len(self.log)-self.max_log_length-1]
 
 
429
        self.logbox.set_focus(len(self.logbox.body.contents),
 
 
430
                              coming_from=u"above")
 
504
433
    def toggle_log_display(self):
 
505
434
        """Toggle visibility of the log buffer."""
 
506
435
        self.log_visible = not self.log_visible
 
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
437
        self.log_message(u"Log visibility changed to: "
 
 
438
                         + unicode(self.log_visible))
 
510
440
    def change_log_display(self):
 
511
441
        """Change type of log display.
 
512
442
        Currently, this toggles wrapping of text lines."""
 
513
 
        if self.log_wrap == "clip":
 
514
 
            self.log_wrap = "any"
 
 
443
        if self.log_wrap == u"clip":
 
 
444
            self.log_wrap = u"any"
 
516
 
            self.log_wrap = "clip"
 
 
446
            self.log_wrap = u"clip"
 
517
447
        for textwidget in self.log:
 
518
448
            textwidget.set_wrap_mode(self.log_wrap)
 
519
 
        log.debug("Wrap mode: %s", self.log_wrap)
 
521
 
    def find_and_remove_client(self, path, interfaces):
 
522
 
        """Find a client by its object path and remove it.
 
524
 
        This is connected to the InterfacesRemoved signal from the
 
 
449
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
 
451
    def find_and_remove_client(self, path, name):
 
 
452
        """Find an client from its object path and remove it.
 
 
454
        This is connected to the ClientRemoved signal from the
 
525
455
        Mandos server object."""
 
526
 
        if client_interface not in interfaces:
 
527
 
            # Not a Mandos client object; ignore
 
530
457
            client = self.clients_dict[path]
 
533
 
            log.warning("Unknown client %s removed", path)
 
537
 
    def add_new_client(self, path, ifs_and_props):
 
538
 
        """Find a client by its object path and remove it.
 
540
 
        This is connected to the InterfacesAdded signal from the
 
541
 
        Mandos server object.
 
543
 
        if client_interface not in ifs_and_props:
 
544
 
            # Not a Mandos client object; ignore
 
 
461
        self.remove_client(client, path)
 
 
463
    def add_new_client(self, path):
 
546
464
        client_proxy_object = self.bus.get_object(self.busname, path)
 
547
 
        self.add_client(MandosClientWidget(
 
548
 
            server_proxy_object=self.mandos_serv,
 
549
 
            proxy_object=client_proxy_object,
 
550
 
            update_hook=self.refresh,
 
551
 
            delete_hook=self.remove_client,
 
552
 
            properties=dict(ifs_and_props[client_interface])),
 
 
465
        self.add_client(MandosClientWidget(server_proxy_object
 
 
468
                                           =client_proxy_object,
 
555
477
    def add_client(self, client, path=None):
 
556
478
        self.clients.append(client)
 
558
480
            path = client.proxy.object_path
 
559
481
        self.clients_dict[path] = client
 
560
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
482
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
563
485
    def remove_client(self, client, path=None):
 
564
486
        self.clients.remove(client)
 
566
488
            path = client.proxy.object_path
 
567
489
        del self.clients_dict[path]
 
 
490
        if not self.clients_dict:
 
 
491
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
 
492
            # is completely emptied, we need to recreate it.
 
 
493
            self.clients = urwid.SimpleListWalker([])
 
570
497
    def refresh(self):
 
571
498
        """Redraw the screen"""
 
572
499
        canvas = self.topwidget.render(self.size, focus=True)
 
573
500
        self.screen.draw_screen(self.size, canvas)
 
576
503
        """Start the main loop and exit when it's done."""
 
577
 
        log.addHandler(self.loghandler)
 
578
 
        self.orig_log_propagate = log.propagate
 
579
 
        log.propagate = False
 
580
 
        self.orig_log_level = log.level
 
582
 
        self.bus = dbus.SystemBus()
 
583
 
        mandos_dbus_objc = self.bus.get_object(
 
584
 
            self.busname, "/", follow_name_owner_changes=True)
 
585
 
        self.mandos_serv = dbus.Interface(
 
586
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
588
 
            mandos_clients = (self.mandos_serv
 
589
 
                              .GetAllClientsWithProperties())
 
590
 
            if not mandos_clients:
 
591
 
                log.warning("Note: Server has no clients.")
 
592
 
        except dbus.exceptions.DBusException:
 
593
 
            log.warning("Note: No Mandos server running.")
 
594
 
            mandos_clients = dbus.Dictionary()
 
597
 
         .connect_to_signal("InterfacesRemoved",
 
598
 
                            self.find_and_remove_client,
 
599
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
602
 
         .connect_to_signal("InterfacesAdded",
 
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
607
 
         .connect_to_signal("ClientNotFound",
 
608
 
                            self.client_not_found,
 
609
 
                            dbus_interface=server_interface,
 
611
 
        for path, client in mandos_clients.items():
 
612
 
            client_proxy_object = self.bus.get_object(self.busname,
 
614
 
            self.add_client(MandosClientWidget(
 
615
 
                server_proxy_object=self.mandos_serv,
 
616
 
                proxy_object=client_proxy_object,
 
618
 
                update_hook=self.refresh,
 
619
 
                delete_hook=self.remove_client),
 
623
 
        self._input_callback_tag = (
 
625
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
626
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
627
 
                glib_safely(self.process_input)))
 
 
505
        self._input_callback_tag = (gobject.io_add_watch
 
628
509
        self.main_loop.run()
 
629
510
        # Main loop has finished, we should close everything now
 
630
 
        GLib.source_remove(self._input_callback_tag)
 
631
 
        with warnings.catch_warnings():
 
632
 
            warnings.simplefilter("ignore", BytesWarning)
 
 
511
        gobject.source_remove(self._input_callback_tag)
 
636
515
        self.main_loop.quit()
 
637
 
        log.removeHandler(self.loghandler)
 
638
 
        log.propagate = self.orig_log_propagate
 
640
517
    def process_input(self, source, condition):
 
641
518
        keys = self.screen.get_input()
 
642
 
        translations = {"ctrl n": "down",       # Emacs
 
643
 
                        "ctrl p": "up",         # Emacs
 
644
 
                        "ctrl v": "page down",  # Emacs
 
645
 
                        "meta v": "page up",    # Emacs
 
646
 
                        " ": "page down",       # less
 
647
 
                        "f": "page down",       # less
 
648
 
                        "b": "page up",         # less
 
 
519
        translations = { u"ctrl n": u"down",      # Emacs
 
 
520
                         u"ctrl p": u"up",        # Emacs
 
 
521
                         u"ctrl v": u"page down", # Emacs
 
 
522
                         u"meta v": u"page up",   # Emacs
 
 
523
                         u" ": u"page down",      # less
 
 
524
                         u"f": u"page down",      # less
 
 
525
                         u"b": u"page up",        # less
 
654
531
                key = translations[key]
 
655
532
            except KeyError:    # :-)
 
658
 
            if key == "q" or key == "Q":
 
 
535
            if key == u"q" or key == u"Q":
 
661
 
            elif key == "window resize":
 
 
538
            elif key == u"window resize":
 
662
539
                self.size = self.screen.get_cols_rows()
 
664
 
            elif key == "ctrl l":
 
 
541
            elif key == u"\f":  # Ctrl-L
 
667
 
            elif key == "l" or key == "D":
 
 
543
            elif key == u"l" or key == u"D":
 
668
544
                self.toggle_log_display()
 
670
 
            elif key == "w" or key == "i":
 
 
546
            elif key == u"w" or key == u"i":
 
671
547
                self.change_log_display()
 
673
 
            elif key == "?" or key == "f1" or key == "esc":
 
 
549
            elif key == u"?" or key == u"f1" or key == u"esc":
 
674
550
                if not self.log_visible:
 
675
551
                    self.log_visible = True
 
677
 
                self.add_log_line(("bold",
 
680
 
                                              "l: Log window toggle",
 
681
 
                                              "TAB: Switch window",
 
682
 
                                              "w: Wrap (log lines)",
 
683
 
                                              "v: Toggle verbose log",
 
685
 
                self.add_log_line(("bold",
 
686
 
                                   "  ".join(("Clients:",
 
690
 
                                              "s: Start new checker",
 
 
553
                self.log_message_raw((u"bold",
 
 
557
                                            u"l: Log window toggle",
 
 
558
                                            u"TAB: Switch window",
 
 
560
                self.log_message_raw((u"bold",
 
 
566
                                             u"s: Start new checker",
 
698
573
                if self.topwidget.get_focus() is self.logbox:
 
699
574
                    self.topwidget.set_focus(0)
 
701
576
                    self.topwidget.set_focus(self.logbox)
 
704
 
                if log.level < logging.INFO:
 
705
 
                    log.setLevel(logging.INFO)
 
706
 
                    log.info("Verbose mode: Off")
 
708
 
                    log.setLevel(logging.NOTSET)
 
709
 
                    log.info("Verbose mode: On")
 
710
 
            # elif (key == "end" or key == "meta >" or key == "G"
 
712
 
            #     pass            # xxx end-of-buffer
 
713
 
            # elif (key == "home" or key == "meta <" or key == "g"
 
715
 
            #     pass            # xxx beginning-of-buffer
 
716
 
            # elif key == "ctrl e" or key == "$":
 
717
 
            #     pass            # xxx move-end-of-line
 
718
 
            # elif key == "ctrl a" or key == "^":
 
719
 
            #     pass            # xxx move-beginning-of-line
 
720
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
722
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
725
 
            #     pass            # scroll up log
 
727
 
            #     pass            # scroll down log
 
 
578
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
 
580
            #    pass            # xxx end-of-buffer
 
 
581
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
 
583
            #    pass            # xxx beginning-of-buffer
 
 
584
            #elif key == u"ctrl e" or key == u"$":
 
 
585
            #    pass            # xxx move-end-of-line
 
 
586
            #elif key == u"ctrl a" or key == u"^":
 
 
587
            #    pass            # xxx move-beginning-of-line
 
 
588
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
 
590
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
 
593
            #    pass            # scroll up log
 
 
595
            #    pass            # scroll down log
 
728
596
            elif self.topwidget.selectable():
 
729
597
                self.topwidget.keypress(self.size, key)
 
734
 
class UILogHandler(logging.Handler):
 
735
 
    def __init__(self, ui, *args, **kwargs):
 
737
 
        super(UILogHandler, self).__init__(*args, **kwargs)
 
739
 
            logging.Formatter("%(asctime)s: %(message)s"))
 
740
 
    def emit(self, record):
 
741
 
        msg = self.format(record)
 
742
 
        if record.levelno > logging.INFO:
 
744
 
        self.ui.add_log_line(msg)
 
747
601
ui = UserInterface()
 
750
 
except KeyboardInterrupt:
 
751
 
    with warnings.catch_warnings():
 
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
755
 
    with warnings.catch_warnings():
 
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
605
    ui.log_message(unicode(e))