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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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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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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("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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    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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    second, fraction = divmod(float(second), 1)
 
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    return datetime.datetime(int(year),
 
88
 
                             int(second),            # Whole seconds
 
89
 
                             int(fraction*1000000))  # Microseconds
 
92
 
class MandosClientPropertyCache:
 
 
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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
 
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
 
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        self.property_changed_match = (
 
101
 
            self.proxy.connect_to_signal("PropertiesChanged",
 
102
 
                                         self.properties_changed,
 
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                                         dbus.PROPERTIES_IFACE,
 
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        if properties is None:
 
107
 
            self.properties.update(self.proxy.GetAll(
 
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                dbus_interface=dbus.PROPERTIES_IFACE))
 
111
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
113
 
    def properties_changed(self, interface, properties, invalidated):
 
114
 
        """This is called whenever we get a PropertiesChanged signal
 
115
 
        It updates the changed properties in the "properties" dict.
 
 
64
    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))
 
 
77
        #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
 
 
83
        It updates the changed property in the "properties" dict.
 
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85
        # Update properties dict with new value
 
118
 
        if interface == client_interface:
 
119
 
            self.properties.update(properties)
 
122
 
        self.property_changed_match.remove()
 
 
86
        self.properties[property] = value
 
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89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
 
126
90
    """A Mandos Client which is visible on the screen.
 
129
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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):
 
131
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        # Called on update
 
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        self.update_hook = update_hook
 
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        # Called on delete
 
134
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        self.delete_hook = delete_hook
 
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99
        # Mandos Server proxy object
 
136
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        self.server_proxy_object = server_proxy_object
 
138
104
        self._update_timer_callback_tag = None
 
 
105
        self.last_checker_failed = False
 
140
107
        # The widget shown normally
 
141
 
        self._text_widget = urwid.Text("")
 
 
108
        self._text_widget = urwid.Text(u"")
 
142
109
        # The widget shown when we have focus
 
143
 
        self._focus_text_widget = urwid.Text("")
 
144
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
 
110
        self._focus_text_widget = urwid.Text(u"")
 
 
111
        super(MandosClientWidget, self).__init__(
 
 
112
            update_hook=update_hook, delete_hook=delete_hook,
 
146
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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
 
 
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
 
184
152
    def checker_completed(self, exitstatus, condition, command):
 
185
153
        if exitstatus == 0:
 
186
 
            log.debug('Checker for client %s (command "%s")'
 
187
 
                      " succeeded", self.properties["Name"], command)
 
 
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))
 
 
164
        if not self.last_checker_failed:
 
 
165
            self.last_checker_failed = True
 
 
166
            self._update_timer_callback_tag = (gobject.timeout_add
 
191
169
        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))
 
 
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)))
 
195
174
        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))
 
 
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'
 
201
188
    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)
 
 
189
        #self.logger(u'Client %s started checker "%s"'
 
 
190
        #            % (self.properties[u"Name"], unicode(command)))
 
206
193
    def got_secret(self):
 
207
 
        log.info("Client %s received its secret",
 
208
 
                 self.properties["Name"])
 
 
194
        self.last_checker_failed = False
 
 
195
        self.logger(u'Client %s received its secret'
 
 
196
                    % self.properties[u"Name"])
 
210
198
    def need_approval(self, timeout, default):
 
212
 
            message = "Client %s needs approval within %f seconds"
 
 
200
            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)
 
 
202
            message = u'Client %s will get its secret in %s seconds'
 
 
204
                    % (self.properties[u"Name"], timeout/1000))
 
217
206
    def rejected(self, reason):
 
218
 
        log.info("Client %s was rejected; reason: %s",
 
219
 
                 self.properties["Name"], reason)
 
 
207
        self.logger(u'Client %s was rejected; reason: %s'
 
 
208
                    % (self.properties[u"Name"], reason))
 
221
210
    def selectable(self):
 
222
211
        """Make this a "selectable" widget.
 
223
212
        This overrides the method from urwid.FlowWidget."""
 
226
 
    def rows(self, maxcolrow, focus=False):
 
 
215
    def rows(self, (maxcol,), focus=False):
 
227
216
        """How many rows this widget will occupy might depend on
 
228
217
        whether we have focus or not.
 
229
218
        This overrides the method from urwid.FlowWidget"""
 
230
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
 
219
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
232
221
    def current_widget(self, focus=False):
 
233
222
        if focus or self.opened:
 
234
223
            return self._focus_widget
 
235
224
        return self._widget
 
237
226
    def update(self):
 
238
227
        "Called when what is visible on the screen should be updated."
 
239
228
        # 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",
 
 
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",
 
248
237
        # Rebuild focus and non-focus widgets using current properties
 
250
239
        # 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)
 
 
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])
 
288
 
            self.using_timer(False)
 
289
 
        self._text = "{}{}".format(base, message)
 
 
263
        self._text = "%s%s" % (base, message)
 
291
265
        if not urwid.supports_unicode():
 
292
266
            self._text = self._text.encode("ascii", "replace")
 
293
 
        textlist = [("normal", self._text)]
 
 
267
        textlist = [(u"normal", self._text)]
 
294
268
        self._text_widget.set_text(textlist)
 
295
269
        self._focus_text_widget.set_text([(with_standout[text[0]],
 
 
303
277
        # Run update hook, if any
 
304
278
        if self.update_hook is not None:
 
305
279
            self.update_hook()
 
307
281
    def update_timer(self):
 
308
 
        """called by GLib. Will indefinitely loop until
 
309
 
        GLib.source_remove() on tag is called
 
312
284
        return True             # Keep calling this
 
314
 
    def delete(self, **kwargs):
 
315
287
        if self._update_timer_callback_tag is not None:
 
316
 
            GLib.source_remove(self._update_timer_callback_tag)
 
 
288
            gobject.source_remove(self._update_timer_callback_tag)
 
317
289
            self._update_timer_callback_tag = None
 
318
 
        for match in self.match_objects:
 
320
 
        self.match_objects = ()
 
321
290
        if self.delete_hook is not None:
 
322
291
            self.delete_hook(self)
 
323
 
        return super(MandosClientWidget, self).delete(**kwargs)
 
325
 
    def render(self, maxcolrow, focus=False):
 
 
293
    def render(self, (maxcol,), focus=False):
 
326
294
        """Render differently if we have focus.
 
327
295
        This overrides the method from urwid.FlowWidget"""
 
328
 
        return self.current_widget(focus).render(maxcolrow,
 
 
296
        return self.current_widget(focus).render((maxcol,),
 
331
 
    def keypress(self, maxcolrow, key):
 
 
299
    def keypress(self, (maxcol,), key):
 
333
301
        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)
 
 
303
            self.proxy.Enable(dbus_interface = client_interface)
 
 
305
            self.proxy.Disable(dbus_interface = client_interface)
 
343
307
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
344
 
                               dbus_interface=client_interface,
 
 
308
                               dbus_interface = client_interface)
 
347
310
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
348
 
                               dbus_interface=client_interface,
 
350
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
 
311
                                  dbus_interface = client_interface)
 
 
312
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
351
313
            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,
 
 
316
            self.proxy.StartChecker(dbus_interface = client_interface)
 
 
318
            self.proxy.StopChecker(dbus_interface = client_interface)
 
 
320
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
366
 
#         elif key == "p" or key == "=":
 
 
322
#         elif key == u"p" or key == "=":
 
367
323
#             self.proxy.pause()
 
368
 
#         elif key == "u" or key == ":":
 
 
324
#         elif key == u"u" or key == ":":
 
369
325
#             self.proxy.unpause()
 
 
326
#         elif key == u"RET":
 
 
329
#            self.proxy.Approve(True)
 
 
331
#            self.proxy.Approve(False)
 
375
 
    def properties_changed(self, interface, properties, invalidated):
 
376
 
        """Call self.update() if any properties changed.
 
 
335
    def property_changed(self, property=None, value=None,
 
 
337
        """Call self.update() if old value is not new value.
 
377
338
        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):
 
 
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:
 
387
 
def glib_safely(func, retval=True):
 
388
 
    def safe_func(*args, **kwargs):
 
390
 
            return func(*args, **kwargs)
 
397
347
class ConstrainedListBox(urwid.ListBox):
 
398
348
    """Like a normal urwid.ListBox, but will consume all "up" or
 
399
349
    "down" key presses, thus not allowing any containing widgets to
 
400
350
    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"):
 
 
352
    def keypress(self, (maxcol, maxrow), key):
 
 
353
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
 
355
        if ret in (u"up", u"down"):
 
 
360
class UserInterface(object):
 
411
361
    """This is the entire user interface - the whole screen
 
412
362
    with boxes, lists of client widgets, etc.
 
414
364
    def __init__(self, max_log_length=1000):
 
415
365
        DBusGMainLoop(set_as_default=True)
 
417
367
        self.screen = urwid.curses_display.Screen()
 
419
369
        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"),
 
 
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",
 
441
389
        if urwid.supports_unicode():
 
442
 
            self.divider = "─"  # \u2500
 
 
390
            self.divider = u"─" # \u2500
 
 
391
            #self.divider = u"━" # \u2501
 
444
 
            self.divider = "_"  # \u005f
 
 
393
            #self.divider = u"-" # \u002d
 
 
394
            self.divider = u"_" # \u005f
 
446
396
        self.screen.start()
 
448
398
        self.size = self.screen.get_cols_rows()
 
450
400
        self.clients = urwid.SimpleListWalker([])
 
451
401
        self.clients_dict = {}
 
453
403
        # We will add Text widgets to this list
 
454
 
        self.log = urwid.SimpleListWalker([])
 
455
405
        self.max_log_length = max_log_length
 
457
407
        # We keep a reference to the log widget so we can remove it
 
458
408
        # from the ListWalker without it getting destroyed
 
459
409
        self.logbox = ConstrainedListBox(self.log)
 
461
411
        # This keeps track of whether self.uilist currently has
 
462
412
        # self.logbox in it or not
 
463
413
        self.log_visible = True
 
464
 
        self.log_wrap = "any"
 
466
 
        self.loghandler = UILogHandler(self)
 
 
414
        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)
 
 
417
        self.log_message_raw((u"bold",
 
 
418
                              u"Mandos Monitor version " + version))
 
 
419
        self.log_message_raw((u"bold",
 
 
422
        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,
 
480
472
    def rebuild(self):
 
481
473
        """This rebuilds the User Interface.
 
482
474
        Call this when the widget layout needs to change"""
 
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
 
476
        #self.uilist.append(urwid.ListBox(self.clients))
 
485
477
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
487
 
                                       # header=urwid.Divider(),
 
 
479
                                       #header=urwid.Divider(),
 
489
 
                                       footer=urwid.Divider(
 
490
 
                                           div_char=self.divider)))
 
 
482
                                       urwid.Divider(div_char=
 
491
484
        if self.log_visible:
 
492
485
            self.uilist.append(self.logbox)
 
493
487
        self.topwidget = urwid.Pile(self.uilist)
 
495
 
    def add_log_line(self, markup):
 
 
489
    def log_message(self, message):
 
 
490
        timestamp = datetime.datetime.now().isoformat()
 
 
491
        self.log_message_raw(timestamp + u": " + message)
 
 
493
    def log_message_raw(self, markup):
 
 
494
        """Add a log message to the log buffer."""
 
496
495
        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,
 
 
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")
 
504
503
    def toggle_log_display(self):
 
505
504
        """Toggle visibility of the log buffer."""
 
506
505
        self.log_visible = not self.log_visible
 
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
 
 
507
        self.log_message(u"Log visibility changed to: "
 
 
508
                         + unicode(self.log_visible))
 
510
510
    def change_log_display(self):
 
511
511
        """Change type of log display.
 
512
512
        Currently, this toggles wrapping of text lines."""
 
513
 
        if self.log_wrap == "clip":
 
514
 
            self.log_wrap = "any"
 
 
513
        if self.log_wrap == u"clip":
 
 
514
            self.log_wrap = u"any"
 
516
 
            self.log_wrap = "clip"
 
 
516
            self.log_wrap = u"clip"
 
517
517
        for textwidget in self.log:
 
518
518
            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
 
 
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
525
        Mandos server object."""
 
526
 
        if client_interface not in interfaces:
 
527
 
            # Not a Mandos client object; ignore
 
530
527
            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
 
 
531
        self.remove_client(client, path)
 
 
533
    def add_new_client(self, path):
 
546
534
        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])),
 
 
535
        self.add_client(MandosClientWidget(server_proxy_object
 
 
538
                                           =client_proxy_object,
 
555
547
    def add_client(self, client, path=None):
 
556
548
        self.clients.append(client)
 
558
550
            path = client.proxy.object_path
 
559
551
        self.clients_dict[path] = client
 
560
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
 
552
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
563
555
    def remove_client(self, client, path=None):
 
564
556
        self.clients.remove(client)
 
566
558
            path = client.proxy.object_path
 
567
559
        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([])
 
570
567
    def refresh(self):
 
571
568
        """Redraw the screen"""
 
572
569
        canvas = self.topwidget.render(self.size, focus=True)
 
573
570
        self.screen.draw_screen(self.size, canvas)
 
576
573
        """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)))
 
 
575
        self._input_callback_tag = (gobject.io_add_watch
 
628
579
        self.main_loop.run()
 
629
580
        # 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)
 
 
581
        gobject.source_remove(self._input_callback_tag)
 
636
585
        self.main_loop.quit()
 
637
 
        log.removeHandler(self.loghandler)
 
638
 
        log.propagate = self.orig_log_propagate
 
640
587
    def process_input(self, source, condition):
 
641
588
        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
 
 
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
 
654
601
                key = translations[key]
 
655
602
            except KeyError:    # :-)
 
658
 
            if key == "q" or key == "Q":
 
 
605
            if key == u"q" or key == u"Q":
 
661
 
            elif key == "window resize":
 
 
608
            elif key == u"window resize":
 
662
609
                self.size = self.screen.get_cols_rows()
 
664
 
            elif key == "ctrl l":
 
 
611
            elif key == u"\f":  # Ctrl-L
 
667
 
            elif key == "l" or key == "D":
 
 
613
            elif key == u"l" or key == u"D":
 
668
614
                self.toggle_log_display()
 
670
 
            elif key == "w" or key == "i":
 
 
616
            elif key == u"w" or key == u"i":
 
671
617
                self.change_log_display()
 
673
 
            elif key == "?" or key == "f1" or key == "esc":
 
 
619
            elif key == u"?" or key == u"f1" or key == u"esc":
 
674
620
                if not self.log_visible:
 
675
621
                    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",
 
 
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",
 
698
643
                if self.topwidget.get_focus() is self.logbox:
 
699
644
                    self.topwidget.set_focus(0)
 
701
646
                    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
 
 
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
 
728
666
            elif self.topwidget.selectable():
 
729
667
                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
671
ui = UserInterface()
 
750
674
except KeyboardInterrupt:
 
751
 
    with warnings.catch_warnings():
 
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
755
 
    with warnings.catch_warnings():
 
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
 
 
677
    ui.log_message(unicode(e))