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#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
7
import os
 
8
import signal
36
9
 
37
10
import datetime
38
11
 
40
13
import urwid
41
14
 
42
15
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
16
import gobject
44
17
 
45
18
import dbus
46
19
 
 
20
import UserList
 
21
 
47
22
import locale
48
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
49
26
import logging
50
 
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
locale.setlocale(locale.LC_ALL, '')
55
 
 
56
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
57
28
 
58
29
# Some useful constants
59
 
domain = 'se.recompile'
 
30
domain = 'se.bsnet.fukt'
60
31
server_interface = domain + '.Mandos'
61
32
client_interface = domain + '.Mandos.Client'
62
 
version = "1.8.3"
63
 
 
64
 
try:
65
 
    dbus.OBJECT_MANAGER_IFACE
66
 
except AttributeError:
67
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
68
 
 
 
33
version = "1.0.15"
 
34
 
 
35
# Always run in monochrome mode
 
36
urwid.curses_display.curses.has_colors = lambda : False
 
37
 
 
38
# Urwid doesn't support blinking, but we want it.  Since we have no
 
39
# use for underline on its own, we make underline also always blink.
 
40
urwid.curses_display.curses.A_UNDERLINE |= (
 
41
    urwid.curses_display.curses.A_BLINK)
69
42
 
70
43
def isoformat_to_datetime(iso):
71
44
    "Parse an ISO 8601 date string to a datetime.datetime()"
72
45
    if not iso:
73
46
        return None
74
 
    d, t = iso.split("T", 1)
75
 
    year, month, day = d.split("-", 2)
76
 
    hour, minute, second = t.split(":", 2)
 
47
    d, t = iso.split(u"T", 1)
 
48
    year, month, day = d.split(u"-", 2)
 
49
    hour, minute, second = t.split(u":", 2)
77
50
    second, fraction = divmod(float(second), 1)
78
51
    return datetime.datetime(int(year),
79
52
                             int(month),
80
53
                             int(day),
81
54
                             int(hour),
82
55
                             int(minute),
83
 
                             int(second),            # Whole seconds
84
 
                             int(fraction*1000000))  # Microseconds
85
 
 
 
56
                             int(second),           # Whole seconds
 
57
                             int(fraction*1000000)) # Microseconds
86
58
 
87
59
class MandosClientPropertyCache(object):
88
60
    """This wraps a Mandos Client D-Bus proxy object, caches the
89
61
    properties and calls a hook function when any of them are
90
62
    changed.
91
63
    """
92
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
93
 
        self.proxy = proxy_object  # Mandos Client proxy object
94
 
        self.properties = dict() if properties is None else properties
95
 
        self.property_changed_match = (
96
 
            self.proxy.connect_to_signal("PropertiesChanged",
97
 
                                         self.properties_changed,
98
 
                                         dbus.PROPERTIES_IFACE,
99
 
                                         byte_arrays=True))
100
 
 
101
 
        if properties is None:
102
 
            self.properties.update(self.proxy.GetAll(
103
 
                client_interface,
104
 
                dbus_interface=dbus.PROPERTIES_IFACE))
105
 
 
106
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
107
 
 
108
 
    def properties_changed(self, interface, properties, invalidated):
109
 
        """This is called whenever we get a PropertiesChanged signal
110
 
        It updates the changed properties in the "properties" dict.
 
64
    def __init__(self, proxy_object=None, *args, **kwargs):
 
65
        self.proxy = proxy_object # Mandos Client proxy object
 
66
        
 
67
        self.properties = dict()
 
68
        self.proxy.connect_to_signal(u"PropertyChanged",
 
69
                                     self.property_changed,
 
70
                                     client_interface,
 
71
                                     byte_arrays=True)
 
72
        
 
73
        self.properties.update(
 
74
            self.proxy.GetAll(client_interface,
 
75
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
76
 
 
77
        #XXX This break good super behaviour!
 
78
#        super(MandosClientPropertyCache, self).__init__(
 
79
#            *args, **kwargs)
 
80
    
 
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.
111
84
        """
112
85
        # Update properties dict with new value
113
 
        if interface == client_interface:
114
 
            self.properties.update(properties)
115
 
 
116
 
    def delete(self):
117
 
        self.property_changed_match.remove()
 
86
        self.properties[property] = value
118
87
 
119
88
 
120
89
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
121
90
    """A Mandos Client which is visible on the screen.
122
91
    """
123
 
 
 
92
    
124
93
    def __init__(self, server_proxy_object=None, update_hook=None,
125
 
                 delete_hook=None, logger=None, **kwargs):
 
94
                 delete_hook=None, logger=None, *args, **kwargs):
126
95
        # Called on update
127
96
        self.update_hook = update_hook
128
97
        # Called on delete
131
100
        self.server_proxy_object = server_proxy_object
132
101
        # Logger
133
102
        self.logger = logger
134
 
 
 
103
        
135
104
        self._update_timer_callback_tag = None
136
 
 
 
105
        self.last_checker_failed = False
 
106
        
137
107
        # The widget shown normally
138
 
        self._text_widget = urwid.Text("")
 
108
        self._text_widget = urwid.Text(u"")
139
109
        # The widget shown when we have focus
140
 
        self._focus_text_widget = urwid.Text("")
141
 
        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,
 
113
            *args, **kwargs)
142
114
        self.update()
143
115
        self.opened = False
144
 
 
145
 
        self.match_objects = (
146
 
            self.proxy.connect_to_signal("CheckerCompleted",
147
 
                                         self.checker_completed,
148
 
                                         client_interface,
149
 
                                         byte_arrays=True),
150
 
            self.proxy.connect_to_signal("CheckerStarted",
151
 
                                         self.checker_started,
152
 
                                         client_interface,
153
 
                                         byte_arrays=True),
154
 
            self.proxy.connect_to_signal("GotSecret",
155
 
                                         self.got_secret,
156
 
                                         client_interface,
157
 
                                         byte_arrays=True),
158
 
            self.proxy.connect_to_signal("NeedApproval",
159
 
                                         self.need_approval,
160
 
                                         client_interface,
161
 
                                         byte_arrays=True),
162
 
            self.proxy.connect_to_signal("Rejected",
163
 
                                         self.rejected,
164
 
                                         client_interface,
165
 
                                         byte_arrays=True))
166
 
        self.logger('Created client {}'
167
 
                    .format(self.properties["Name"]), level=0)
168
 
 
169
 
    def using_timer(self, flag):
170
 
        """Call this method with True or False when timer should be
171
 
        activated or deactivated.
172
 
        """
173
 
        if flag and self._update_timer_callback_tag is None:
174
 
            # Will update the shown timer value every second
175
 
            self._update_timer_callback_tag = (GLib.timeout_add
 
116
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
117
                                     self.checker_completed,
 
118
                                     client_interface,
 
119
                                     byte_arrays=True)
 
120
        self.proxy.connect_to_signal(u"CheckerStarted",
 
121
                                     self.checker_started,
 
122
                                     client_interface,
 
123
                                     byte_arrays=True)
 
124
        self.proxy.connect_to_signal(u"GotSecret",
 
125
                                     self.got_secret,
 
126
                                     client_interface,
 
127
                                     byte_arrays=True)
 
128
        self.proxy.connect_to_signal(u"NeedApproval",
 
129
                                     self.need_approval,
 
130
                                     client_interface,
 
131
                                     byte_arrays=True)
 
132
        self.proxy.connect_to_signal(u"Rejected",
 
133
                                     self.rejected,
 
134
                                     client_interface,
 
135
                                     byte_arrays=True)
 
136
        last_checked_ok = isoformat_to_datetime(self.properties
 
137
                                                [u"LastCheckedOK"])
 
138
        if last_checked_ok is None:
 
139
            self.last_checker_failed = True
 
140
        else:
 
141
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
142
                                         - last_checked_ok)
 
143
                                        > datetime.timedelta
 
144
                                        (milliseconds=
 
145
                                         self.properties
 
146
                                         [u"Interval"]))
 
147
        if self.last_checker_failed:
 
148
            self._update_timer_callback_tag = (gobject.timeout_add
176
149
                                               (1000,
177
150
                                                self.update_timer))
178
 
        elif not (flag or self._update_timer_callback_tag is None):
179
 
            GLib.source_remove(self._update_timer_callback_tag)
180
 
            self._update_timer_callback_tag = None
181
 
 
 
151
    
182
152
    def checker_completed(self, exitstatus, condition, command):
183
153
        if exitstatus == 0:
184
 
            self.logger('Checker for client {} (command "{}")'
185
 
                        ' succeeded'.format(self.properties["Name"],
186
 
                                            command), level=0)
 
154
            if self.last_checker_failed:
 
155
                self.last_checker_failed = False
 
156
                gobject.source_remove(self._update_timer_callback_tag)
 
157
                self._update_timer_callback_tag = None
 
158
            #self.logger(u'Checker for client %s (command "%s")'
 
159
            #            u' was successful'
 
160
            #            % (self.properties[u"Name"], command))
187
161
            self.update()
188
162
            return
189
163
        # Checker failed
 
164
        if not self.last_checker_failed:
 
165
            self.last_checker_failed = True
 
166
            self._update_timer_callback_tag = (gobject.timeout_add
 
167
                                               (1000,
 
168
                                                self.update_timer))
190
169
        if os.WIFEXITED(condition):
191
 
            self.logger('Checker for client {} (command "{}") failed'
192
 
                        ' with exit code {}'
193
 
                        .format(self.properties["Name"], command,
194
 
                                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
 
            self.logger('Checker for client {} (command "{}") was'
197
 
                        ' killed by signal {}'
198
 
                        .format(self.properties["Name"], command,
199
 
                                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")'
 
181
                        u' dumped core'
 
182
                        % (self.properties[u"Name"], command))
 
183
        else:
 
184
            self.logger(u'Checker for client %s completed'
 
185
                        u' mysteriously')
200
186
        self.update()
201
 
 
 
187
    
202
188
    def checker_started(self, command):
203
 
        """Server signals that a checker started."""
204
 
        self.logger('Client {} started checker "{}"'
205
 
                    .format(self.properties["Name"],
206
 
                            command), level=0)
207
 
 
 
189
        #self.logger(u'Client %s started checker "%s"'
 
190
        #            % (self.properties[u"Name"], unicode(command)))
 
191
        pass
 
192
    
208
193
    def got_secret(self):
209
 
        self.logger('Client {} received its secret'
210
 
                    .format(self.properties["Name"]))
211
 
 
 
194
        self.last_checker_failed = False
 
195
        self.logger(u'Client %s received its secret'
 
196
                    % self.properties[u"Name"])
 
197
    
212
198
    def need_approval(self, timeout, default):
213
199
        if not default:
214
 
            message = 'Client {} needs approval within {} seconds'
 
200
            message = u'Client %s needs approval within %s seconds'
215
201
        else:
216
 
            message = 'Client {} will get its secret in {} seconds'
217
 
        self.logger(message.format(self.properties["Name"],
218
 
                                   timeout/1000))
219
 
 
 
202
            message = u'Client %s will get its secret in %s seconds'
 
203
        self.logger(message
 
204
                    % (self.properties[u"Name"], timeout/1000))
 
205
    
220
206
    def rejected(self, reason):
221
 
        self.logger('Client {} was rejected; reason: {}'
222
 
                    .format(self.properties["Name"], reason))
223
 
 
 
207
        self.logger(u'Client %s was rejected; reason: %s'
 
208
                    % (self.properties[u"Name"], reason))
 
209
    
224
210
    def selectable(self):
225
211
        """Make this a "selectable" widget.
226
212
        This overrides the method from urwid.FlowWidget."""
227
213
        return True
228
 
 
229
 
    def rows(self, maxcolrow, focus=False):
 
214
    
 
215
    def rows(self, (maxcol,), focus=False):
230
216
        """How many rows this widget will occupy might depend on
231
217
        whether we have focus or not.
232
218
        This overrides the method from urwid.FlowWidget"""
233
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
234
 
 
 
219
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
220
    
235
221
    def current_widget(self, focus=False):
236
222
        if focus or self.opened:
237
223
            return self._focus_widget
238
224
        return self._widget
239
 
 
 
225
    
240
226
    def update(self):
241
227
        "Called when what is visible on the screen should be updated."
242
228
        # How to add standout mode to a style
243
 
        with_standout = {"normal": "standout",
244
 
                         "bold": "bold-standout",
245
 
                         "underline-blink":
246
 
                         "underline-blink-standout",
247
 
                         "bold-underline-blink":
248
 
                         "bold-underline-blink-standout",
249
 
                         }
 
229
        with_standout = { u"normal": u"standout",
 
230
                          u"bold": u"bold-standout",
 
231
                          u"underline-blink":
 
232
                              u"underline-blink-standout",
 
233
                          u"bold-underline-blink":
 
234
                              u"bold-underline-blink-standout",
 
235
                          }
250
236
 
251
237
        # Rebuild focus and non-focus widgets using current properties
252
238
 
253
239
        # Base part of a client. Name!
254
 
        base = '{name}: '.format(name=self.properties["Name"])
255
 
        if not self.properties["Enabled"]:
256
 
            message = "DISABLED"
257
 
            self.using_timer(False)
258
 
        elif self.properties["ApprovalPending"]:
259
 
            timeout = datetime.timedelta(
260
 
                milliseconds=self.properties["ApprovalDelay"])
261
 
            last_approval_request = isoformat_to_datetime(
262
 
                self.properties["LastApprovalRequest"])
263
 
            if last_approval_request is not None:
264
 
                timer = max(timeout - (datetime.datetime.utcnow()
265
 
                                       - last_approval_request),
266
 
                            datetime.timedelta())
267
 
            else:
268
 
                timer = datetime.timedelta()
269
 
            if self.properties["ApprovedByDefault"]:
270
 
                message = "Approval in {}. (d)eny?"
271
 
            else:
272
 
                message = "Denial in {}. (a)pprove?"
273
 
            message = message.format(str(timer).rsplit(".", 1)[0])
274
 
            self.using_timer(True)
275
 
        elif self.properties["LastCheckerStatus"] != 0:
276
 
            # When checker has failed, show timer until client expires
277
 
            expires = self.properties["Expires"]
278
 
            if expires == "":
279
 
                timer = datetime.timedelta(0)
280
 
            else:
281
 
                expires = (datetime.datetime.strptime
282
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
283
 
                timer = max(expires - datetime.datetime.utcnow(),
284
 
                            datetime.timedelta())
285
 
            message = ('A checker has failed! Time until client'
286
 
                       ' gets disabled: {}'
287
 
                       .format(str(timer).rsplit(".", 1)[0]))
288
 
            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?"
 
247
            else:
 
248
                message = u"Seeks approval to send secret. (a)pprove?"
 
249
        elif self.last_checker_failed:
 
250
            timeout = datetime.timedelta(milliseconds
 
251
                                         = self.properties
 
252
                                         [u"Timeout"])
 
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'
 
259
                       u' gets diabled: %s'
 
260
                           % unicode(timer).rsplit(".", 1)[0])
289
261
        else:
290
 
            message = "enabled"
291
 
            self.using_timer(False)
292
 
        self._text = "{}{}".format(base, message)
293
 
 
 
262
            message = u"enabled"
 
263
        self._text = "%s%s" % (base, message)
 
264
            
294
265
        if not urwid.supports_unicode():
295
266
            self._text = self._text.encode("ascii", "replace")
296
 
        textlist = [("normal", self._text)]
 
267
        textlist = [(u"normal", self._text)]
297
268
        self._text_widget.set_text(textlist)
298
269
        self._focus_text_widget.set_text([(with_standout[text[0]],
299
270
                                           text[1])
306
277
        # Run update hook, if any
307
278
        if self.update_hook is not None:
308
279
            self.update_hook()
309
 
 
 
280
    
310
281
    def update_timer(self):
311
 
        """called by GLib. Will indefinitely loop until
312
 
        GLib.source_remove() on tag is called
313
 
        """
 
282
        "called by gobject"
314
283
        self.update()
315
284
        return True             # Keep calling this
316
 
 
317
 
    def delete(self, **kwargs):
 
285
    
 
286
    def delete(self):
318
287
        if self._update_timer_callback_tag is not None:
319
 
            GLib.source_remove(self._update_timer_callback_tag)
 
288
            gobject.source_remove(self._update_timer_callback_tag)
320
289
            self._update_timer_callback_tag = None
321
 
        for match in self.match_objects:
322
 
            match.remove()
323
 
        self.match_objects = ()
324
290
        if self.delete_hook is not None:
325
291
            self.delete_hook(self)
326
 
        return super(MandosClientWidget, self).delete(**kwargs)
327
 
 
328
 
    def render(self, maxcolrow, focus=False):
 
292
    
 
293
    def render(self, (maxcol,), focus=False):
329
294
        """Render differently if we have focus.
330
295
        This overrides the method from urwid.FlowWidget"""
331
 
        return self.current_widget(focus).render(maxcolrow,
 
296
        return self.current_widget(focus).render((maxcol,),
332
297
                                                 focus=focus)
333
 
 
334
 
    def keypress(self, maxcolrow, key):
 
298
    
 
299
    def keypress(self, (maxcol,), key):
335
300
        """Handle keys.
336
301
        This overrides the method from urwid.FlowWidget"""
337
 
        if key == "+":
338
 
            self.proxy.Set(client_interface, "Enabled",
339
 
                           dbus.Boolean(True), ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
341
 
        elif key == "-":
342
 
            self.proxy.Set(client_interface, "Enabled", False,
343
 
                           ignore_reply=True,
344
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
345
 
        elif key == "a":
 
302
        if key == u"+":
 
303
            self.proxy.Enable(dbus_interface = client_interface)
 
304
        elif key == u"-":
 
305
            self.proxy.Disable(dbus_interface = client_interface)
 
306
        elif key == u"a":
346
307
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
347
 
                               dbus_interface=client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "d":
 
308
                               dbus_interface = client_interface)
 
309
        elif key == u"d":
350
310
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
351
 
                               dbus_interface=client_interface,
352
 
                               ignore_reply=True)
353
 
        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":
354
313
            self.server_proxy_object.RemoveClient(self.proxy
355
 
                                                  .object_path,
356
 
                                                  ignore_reply=True)
357
 
        elif key == "s":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(True), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
361
 
        elif key == "S":
362
 
            self.proxy.Set(client_interface, "CheckerRunning",
363
 
                           dbus.Boolean(False), ignore_reply=True,
364
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
365
 
        elif key == "C":
366
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
367
 
                                 ignore_reply=True)
 
314
                                                  .object_path)
 
315
        elif key == u"s":
 
316
            self.proxy.StartChecker(dbus_interface = client_interface)
 
317
        elif key == u"S":
 
318
            self.proxy.StopChecker(dbus_interface = client_interface)
 
319
        elif key == u"C":
 
320
            self.proxy.CheckedOK(dbus_interface = client_interface)
368
321
        # xxx
369
 
#         elif key == "p" or key == "=":
 
322
#         elif key == u"p" or key == "=":
370
323
#             self.proxy.pause()
371
 
#         elif key == "u" or key == ":":
 
324
#         elif key == u"u" or key == ":":
372
325
#             self.proxy.unpause()
373
 
#         elif key == "RET":
 
326
#         elif key == u"RET":
374
327
#             self.open()
375
328
        else:
376
329
            return key
377
 
 
378
 
    def properties_changed(self, interface, properties, invalidated):
379
 
        """Call self.update() if any properties changed.
 
330
    
 
331
    def property_changed(self, property=None, value=None,
 
332
                         *args, **kwargs):
 
333
        """Call self.update() if old value is not new value.
380
334
        This overrides the method from MandosClientPropertyCache"""
381
 
        old_values = {key: self.properties.get(key)
382
 
                      for key in properties.keys()}
383
 
        super(MandosClientWidget, self).properties_changed(
384
 
            interface, properties, invalidated)
385
 
        if any(old_values[key] != self.properties.get(key)
386
 
               for key in old_values):
 
335
        property_name = unicode(property)
 
336
        old_value = self.properties.get(property_name)
 
337
        super(MandosClientWidget, self).property_changed(
 
338
            property=property, value=value, *args, **kwargs)
 
339
        if self.properties.get(property_name) != old_value:
387
340
            self.update()
388
341
 
389
342
 
392
345
    "down" key presses, thus not allowing any containing widgets to
393
346
    use them as an excuse to shift focus away from this widget.
394
347
    """
395
 
    def keypress(self, *args, **kwargs):
396
 
        ret = (super(ConstrainedListBox, self)
397
 
               .keypress(*args, **kwargs))
398
 
        if ret in ("up", "down"):
 
348
    def keypress(self, (maxcol, maxrow), key):
 
349
        ret = super(ConstrainedListBox, self).keypress((maxcol,
 
350
                                                        maxrow), key)
 
351
        if ret in (u"up", u"down"):
399
352
            return
400
353
        return ret
401
354
 
404
357
    """This is the entire user interface - the whole screen
405
358
    with boxes, lists of client widgets, etc.
406
359
    """
407
 
    def __init__(self, max_log_length=1000, log_level=1):
 
360
    def __init__(self, max_log_length=1000):
408
361
        DBusGMainLoop(set_as_default=True)
409
 
 
 
362
        
410
363
        self.screen = urwid.curses_display.Screen()
411
 
 
 
364
        
412
365
        self.screen.register_palette((
413
 
                ("normal",
414
 
                 "default", "default", None),
415
 
                ("bold",
416
 
                 "bold", "default", "bold"),
417
 
                ("underline-blink",
418
 
                 "underline,blink", "default", "underline,blink"),
419
 
                ("standout",
420
 
                 "standout", "default", "standout"),
421
 
                ("bold-underline-blink",
422
 
                 "bold,underline,blink", "default",
423
 
                 "bold,underline,blink"),
424
 
                ("bold-standout",
425
 
                 "bold,standout", "default", "bold,standout"),
426
 
                ("underline-blink-standout",
427
 
                 "underline,blink,standout", "default",
428
 
                 "underline,blink,standout"),
429
 
                ("bold-underline-blink-standout",
430
 
                 "bold,underline,blink,standout", "default",
431
 
                 "bold,underline,blink,standout"),
 
366
                (u"normal",
 
367
                 u"default", u"default", None),
 
368
                (u"bold",
 
369
                 u"default", u"default", u"bold"),
 
370
                (u"underline-blink",
 
371
                 u"default", u"default", u"underline"),
 
372
                (u"standout",
 
373
                 u"default", u"default", u"standout"),
 
374
                (u"bold-underline-blink",
 
375
                 u"default", u"default", (u"bold", u"underline")),
 
376
                (u"bold-standout",
 
377
                 u"default", u"default", (u"bold", u"standout")),
 
378
                (u"underline-blink-standout",
 
379
                 u"default", u"default", (u"underline", u"standout")),
 
380
                (u"bold-underline-blink-standout",
 
381
                 u"default", u"default", (u"bold", u"underline",
 
382
                                          u"standout")),
432
383
                ))
433
 
 
 
384
        
434
385
        if urwid.supports_unicode():
435
 
            self.divider = "─"  # \u2500
 
386
            self.divider = u"─" # \u2500
 
387
            #self.divider = u"━" # \u2501
436
388
        else:
437
 
            self.divider = "_"  # \u005f
438
 
 
 
389
            #self.divider = u"-" # \u002d
 
390
            self.divider = u"_" # \u005f
 
391
        
439
392
        self.screen.start()
440
 
 
 
393
        
441
394
        self.size = self.screen.get_cols_rows()
442
 
 
 
395
        
443
396
        self.clients = urwid.SimpleListWalker([])
444
397
        self.clients_dict = {}
445
 
 
 
398
        
446
399
        # We will add Text widgets to this list
447
 
        self.log = urwid.SimpleListWalker([])
 
400
        self.log = []
448
401
        self.max_log_length = max_log_length
449
 
 
450
 
        self.log_level = log_level
451
 
 
 
402
        
452
403
        # We keep a reference to the log widget so we can remove it
453
404
        # from the ListWalker without it getting destroyed
454
405
        self.logbox = ConstrainedListBox(self.log)
455
 
 
 
406
        
456
407
        # This keeps track of whether self.uilist currently has
457
408
        # self.logbox in it or not
458
409
        self.log_visible = True
459
 
        self.log_wrap = "any"
460
 
 
 
410
        self.log_wrap = u"any"
 
411
        
461
412
        self.rebuild()
462
 
        self.log_message_raw(("bold",
463
 
                              "Mandos Monitor version " + version))
464
 
        self.log_message_raw(("bold",
465
 
                              "q: Quit  ?: Help"))
466
 
 
 
413
        self.log_message_raw((u"bold",
 
414
                              u"Mandos Monitor version " + version))
 
415
        self.log_message_raw((u"bold",
 
416
                              u"q: Quit  ?: Help"))
 
417
        
467
418
        self.busname = domain + '.Mandos'
468
 
        self.main_loop = GLib.MainLoop()
469
 
 
 
419
        self.main_loop = gobject.MainLoop()
 
420
        self.bus = dbus.SystemBus()
 
421
        mandos_dbus_objc = self.bus.get_object(
 
422
            self.busname, u"/", follow_name_owner_changes=True)
 
423
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
424
                                          dbus_interface
 
425
                                          = server_interface)
 
426
        try:
 
427
            mandos_clients = (self.mandos_serv
 
428
                              .GetAllClientsWithProperties())
 
429
        except dbus.exceptions.DBusException:
 
430
            mandos_clients = dbus.Dictionary()
 
431
        
 
432
        (self.mandos_serv
 
433
         .connect_to_signal(u"ClientRemoved",
 
434
                            self.find_and_remove_client,
 
435
                            dbus_interface=server_interface,
 
436
                            byte_arrays=True))
 
437
        (self.mandos_serv
 
438
         .connect_to_signal(u"ClientAdded",
 
439
                            self.add_new_client,
 
440
                            dbus_interface=server_interface,
 
441
                            byte_arrays=True))
 
442
        (self.mandos_serv
 
443
         .connect_to_signal(u"ClientNotFound",
 
444
                            self.client_not_found,
 
445
                            dbus_interface=server_interface,
 
446
                            byte_arrays=True))
 
447
        for path, client in mandos_clients.iteritems():
 
448
            client_proxy_object = self.bus.get_object(self.busname,
 
449
                                                      path)
 
450
            self.add_client(MandosClientWidget(server_proxy_object
 
451
                                               =self.mandos_serv,
 
452
                                               proxy_object
 
453
                                               =client_proxy_object,
 
454
                                               properties=client,
 
455
                                               update_hook
 
456
                                               =self.refresh,
 
457
                                               delete_hook
 
458
                                               =self.remove_client,
 
459
                                               logger
 
460
                                               =self.log_message),
 
461
                            path=path)
 
462
    
470
463
    def client_not_found(self, fingerprint, address):
471
 
        self.log_message("Client with address {} and fingerprint {}"
472
 
                         " could not be found"
473
 
                         .format(address, fingerprint))
474
 
 
 
464
        self.log_message((u"Client with address %s and fingerprint %s"
 
465
                          u" could not be found" % (address,
 
466
                                                    fingerprint)))
 
467
    
475
468
    def rebuild(self):
476
469
        """This rebuilds the User Interface.
477
470
        Call this when the widget layout needs to change"""
478
471
        self.uilist = []
479
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
472
        #self.uilist.append(urwid.ListBox(self.clients))
480
473
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
481
474
                                                          clients),
482
 
                                       # header=urwid.Divider(),
 
475
                                       #header=urwid.Divider(),
483
476
                                       header=None,
484
 
                                       footer=urwid.Divider(
485
 
                                           div_char=self.divider)))
 
477
                                       footer=
 
478
                                       urwid.Divider(div_char=
 
479
                                                     self.divider)))
486
480
        if self.log_visible:
487
481
            self.uilist.append(self.logbox)
 
482
            pass
488
483
        self.topwidget = urwid.Pile(self.uilist)
489
 
 
490
 
    def log_message(self, message, level=1):
491
 
        """Log message formatted with timestamp"""
492
 
        if level < self.log_level:
493
 
            return
 
484
    
 
485
    def log_message(self, message):
494
486
        timestamp = datetime.datetime.now().isoformat()
495
 
        self.log_message_raw("{}: {}".format(timestamp, message),
496
 
                             level=level)
497
 
 
498
 
    def log_message_raw(self, markup, level=1):
 
487
        self.log_message_raw(timestamp + u": " + message)
 
488
    
 
489
    def log_message_raw(self, markup):
499
490
        """Add a log message to the log buffer."""
500
 
        if level < self.log_level:
501
 
            return
502
491
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
503
 
        if self.max_log_length:
504
 
            if len(self.log) > self.max_log_length:
505
 
                del self.log[0:len(self.log)-self.max_log_length-1]
506
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
507
 
                              coming_from="above")
 
492
        if (self.max_log_length
 
493
            and len(self.log) > self.max_log_length):
 
494
            del self.log[0:len(self.log)-self.max_log_length-1]
 
495
        self.logbox.set_focus(len(self.logbox.body.contents),
 
496
                              coming_from=u"above")
508
497
        self.refresh()
509
 
 
 
498
    
510
499
    def toggle_log_display(self):
511
500
        """Toggle visibility of the log buffer."""
512
501
        self.log_visible = not self.log_visible
513
502
        self.rebuild()
514
 
        self.log_message("Log visibility changed to: {}"
515
 
                         .format(self.log_visible), level=0)
516
 
 
 
503
        #self.log_message(u"Log visibility changed to: "
 
504
        #                 + unicode(self.log_visible))
 
505
    
517
506
    def change_log_display(self):
518
507
        """Change type of log display.
519
508
        Currently, this toggles wrapping of text lines."""
520
 
        if self.log_wrap == "clip":
521
 
            self.log_wrap = "any"
 
509
        if self.log_wrap == u"clip":
 
510
            self.log_wrap = u"any"
522
511
        else:
523
 
            self.log_wrap = "clip"
 
512
            self.log_wrap = u"clip"
524
513
        for textwidget in self.log:
525
514
            textwidget.set_wrap_mode(self.log_wrap)
526
 
        self.log_message("Wrap mode: {}".format(self.log_wrap),
527
 
                         level=0)
528
 
 
529
 
    def find_and_remove_client(self, path, interfaces):
530
 
        """Find a client by its object path and remove it.
531
 
 
532
 
        This is connected to the InterfacesRemoved signal from the
 
515
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
516
    
 
517
    def find_and_remove_client(self, path, name):
 
518
        """Find an client from its object path and remove it.
 
519
        
 
520
        This is connected to the ClientRemoved signal from the
533
521
        Mandos server object."""
534
 
        if client_interface not in interfaces:
535
 
            # Not a Mandos client object; ignore
536
 
            return
537
522
        try:
538
523
            client = self.clients_dict[path]
539
524
        except KeyError:
540
525
            # not found?
541
 
            self.log_message("Unknown client {!r} removed"
542
 
                             .format(path))
543
 
            return
544
 
        client.delete()
545
 
 
546
 
    def add_new_client(self, path, ifs_and_props):
547
 
        """Find a client by its object path and remove it.
548
 
 
549
 
        This is connected to the InterfacesAdded signal from the
550
 
        Mandos server object.
551
 
        """
552
 
        if client_interface not in ifs_and_props:
553
 
            # Not a Mandos client object; ignore
554
 
            return
 
526
            return
 
527
        self.remove_client(client, path)
 
528
    
 
529
    def add_new_client(self, path):
555
530
        client_proxy_object = self.bus.get_object(self.busname, path)
556
 
        self.add_client(MandosClientWidget(
557
 
            server_proxy_object=self.mandos_serv,
558
 
            proxy_object=client_proxy_object,
559
 
            update_hook=self.refresh,
560
 
            delete_hook=self.remove_client,
561
 
            logger=self.log_message,
562
 
            properties=dict(ifs_and_props[client_interface])),
 
531
        self.add_client(MandosClientWidget(server_proxy_object
 
532
                                           =self.mandos_serv,
 
533
                                           proxy_object
 
534
                                           =client_proxy_object,
 
535
                                           update_hook
 
536
                                           =self.refresh,
 
537
                                           delete_hook
 
538
                                           =self.remove_client,
 
539
                                           logger
 
540
                                           =self.log_message),
563
541
                        path=path)
564
 
 
 
542
    
565
543
    def add_client(self, client, path=None):
566
544
        self.clients.append(client)
567
545
        if path is None:
568
546
            path = client.proxy.object_path
569
547
        self.clients_dict[path] = client
570
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
548
        self.clients.sort(None, lambda c: c.properties[u"Name"])
571
549
        self.refresh()
572
 
 
 
550
    
573
551
    def remove_client(self, client, path=None):
574
552
        self.clients.remove(client)
575
553
        if path is None:
576
554
            path = client.proxy.object_path
577
555
        del self.clients_dict[path]
 
556
        if not self.clients_dict:
 
557
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
558
            # is completely emptied, we need to recreate it.
 
559
            self.clients = urwid.SimpleListWalker([])
 
560
            self.rebuild()
578
561
        self.refresh()
579
 
 
 
562
    
580
563
    def refresh(self):
581
564
        """Redraw the screen"""
582
565
        canvas = self.topwidget.render(self.size, focus=True)
583
566
        self.screen.draw_screen(self.size, canvas)
584
 
 
 
567
    
585
568
    def run(self):
586
569
        """Start the main loop and exit when it's done."""
587
 
        self.bus = dbus.SystemBus()
588
 
        mandos_dbus_objc = self.bus.get_object(
589
 
            self.busname, "/", follow_name_owner_changes=True)
590
 
        self.mandos_serv = dbus.Interface(
591
 
            mandos_dbus_objc, dbus_interface=server_interface)
592
 
        try:
593
 
            mandos_clients = (self.mandos_serv
594
 
                              .GetAllClientsWithProperties())
595
 
            if not mandos_clients:
596
 
                self.log_message_raw(("bold",
597
 
                                      "Note: Server has no clients."))
598
 
        except dbus.exceptions.DBusException:
599
 
            self.log_message_raw(("bold",
600
 
                                  "Note: No Mandos server running."))
601
 
            mandos_clients = dbus.Dictionary()
602
 
 
603
 
        (self.mandos_serv
604
 
         .connect_to_signal("InterfacesRemoved",
605
 
                            self.find_and_remove_client,
606
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
607
 
                            byte_arrays=True))
608
 
        (self.mandos_serv
609
 
         .connect_to_signal("InterfacesAdded",
610
 
                            self.add_new_client,
611
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
612
 
                            byte_arrays=True))
613
 
        (self.mandos_serv
614
 
         .connect_to_signal("ClientNotFound",
615
 
                            self.client_not_found,
616
 
                            dbus_interface=server_interface,
617
 
                            byte_arrays=True))
618
 
        for path, client in mandos_clients.items():
619
 
            client_proxy_object = self.bus.get_object(self.busname,
620
 
                                                      path)
621
 
            self.add_client(MandosClientWidget(
622
 
                server_proxy_object=self.mandos_serv,
623
 
                proxy_object=client_proxy_object,
624
 
                properties=client,
625
 
                update_hook=self.refresh,
626
 
                delete_hook=self.remove_client,
627
 
                logger=self.log_message),
628
 
                            path=path)
629
 
 
630
570
        self.refresh()
631
 
        self._input_callback_tag = (GLib.io_add_watch
 
571
        self._input_callback_tag = (gobject.io_add_watch
632
572
                                    (sys.stdin.fileno(),
633
 
                                     GLib.IO_IN,
 
573
                                     gobject.IO_IN,
634
574
                                     self.process_input))
635
575
        self.main_loop.run()
636
576
        # Main loop has finished, we should close everything now
637
 
        GLib.source_remove(self._input_callback_tag)
 
577
        gobject.source_remove(self._input_callback_tag)
638
578
        self.screen.stop()
639
 
 
 
579
    
640
580
    def stop(self):
641
581
        self.main_loop.quit()
642
 
 
 
582
    
643
583
    def process_input(self, source, condition):
644
584
        keys = self.screen.get_input()
645
 
        translations = {"ctrl n": "down",       # Emacs
646
 
                        "ctrl p": "up",         # Emacs
647
 
                        "ctrl v": "page down",  # Emacs
648
 
                        "meta v": "page up",    # Emacs
649
 
                        " ": "page down",       # less
650
 
                        "f": "page down",       # less
651
 
                        "b": "page up",         # less
652
 
                        "j": "down",            # vi
653
 
                        "k": "up",              # vi
654
 
                        }
 
585
        translations = { u"ctrl n": u"down",      # Emacs
 
586
                         u"ctrl p": u"up",        # Emacs
 
587
                         u"ctrl v": u"page down", # Emacs
 
588
                         u"meta v": u"page up",   # Emacs
 
589
                         u" ": u"page down",      # less
 
590
                         u"f": u"page down",      # less
 
591
                         u"b": u"page up",        # less
 
592
                         u"j": u"down",           # vi
 
593
                         u"k": u"up",             # vi
 
594
                         }
655
595
        for key in keys:
656
596
            try:
657
597
                key = translations[key]
658
598
            except KeyError:    # :-)
659
599
                pass
660
 
 
661
 
            if key == "q" or key == "Q":
 
600
            
 
601
            if key == u"q" or key == u"Q":
662
602
                self.stop()
663
603
                break
664
 
            elif key == "window resize":
 
604
            elif key == u"window resize":
665
605
                self.size = self.screen.get_cols_rows()
666
606
                self.refresh()
667
 
            elif key == "ctrl l":
668
 
                self.screen.clear()
 
607
            elif key == u"\f":  # Ctrl-L
669
608
                self.refresh()
670
 
            elif key == "l" or key == "D":
 
609
            elif key == u"l" or key == u"D":
671
610
                self.toggle_log_display()
672
611
                self.refresh()
673
 
            elif key == "w" or key == "i":
 
612
            elif key == u"w" or key == u"i":
674
613
                self.change_log_display()
675
614
                self.refresh()
676
 
            elif key == "?" or key == "f1" or key == "esc":
 
615
            elif key == u"?" or key == u"f1" or key == u"esc":
677
616
                if not self.log_visible:
678
617
                    self.log_visible = True
679
618
                    self.rebuild()
680
 
                self.log_message_raw(("bold",
681
 
                                      "  ".
682
 
                                      join(("q: Quit",
683
 
                                            "?: Help",
684
 
                                            "l: Log window toggle",
685
 
                                            "TAB: Switch window",
686
 
                                            "w: Wrap (log lines)",
687
 
                                            "v: Toggle verbose log",
688
 
                                            ))))
689
 
                self.log_message_raw(("bold",
690
 
                                      "  "
691
 
                                      .join(("Clients:",
692
 
                                             "+: Enable",
693
 
                                             "-: Disable",
694
 
                                             "R: Remove",
695
 
                                             "s: Start new checker",
696
 
                                             "S: Stop checker",
697
 
                                             "C: Checker OK",
698
 
                                             "a: Approve",
699
 
                                             "d: Deny"))))
 
619
                self.log_message_raw((u"bold",
 
620
                                      u"  ".
 
621
                                      join((u"q: Quit",
 
622
                                            u"?: Help",
 
623
                                            u"l: Log window toggle",
 
624
                                            u"TAB: Switch window",
 
625
                                            u"w: Wrap (log)"))))
 
626
                self.log_message_raw((u"bold",
 
627
                                      u"  "
 
628
                                      .join((u"Clients:",
 
629
                                             u"+: Enable",
 
630
                                             u"-: Disable",
 
631
                                             u"r: Remove",
 
632
                                             u"s: Start new checker",
 
633
                                             u"S: Stop checker",
 
634
                                             u"C: Checker OK",
 
635
                                             u"a: Approve",
 
636
                                             u"d: Deny"))))
700
637
                self.refresh()
701
 
            elif key == "tab":
 
638
            elif key == u"tab":
702
639
                if self.topwidget.get_focus() is self.logbox:
703
640
                    self.topwidget.set_focus(0)
704
641
                else:
705
642
                    self.topwidget.set_focus(self.logbox)
706
643
                self.refresh()
707
 
            elif key == "v":
708
 
                if self.log_level == 0:
709
 
                    self.log_level = 1
710
 
                    self.log_message("Verbose mode: Off")
711
 
                else:
712
 
                    self.log_level = 0
713
 
                    self.log_message("Verbose mode: On")
714
 
            # elif (key == "end" or key == "meta >" or key == "G"
715
 
            #       or key == ">"):
716
 
            #     pass            # xxx end-of-buffer
717
 
            # elif (key == "home" or key == "meta <" or key == "g"
718
 
            #       or key == "<"):
719
 
            #     pass            # xxx beginning-of-buffer
720
 
            # elif key == "ctrl e" or key == "$":
721
 
            #     pass            # xxx move-end-of-line
722
 
            # elif key == "ctrl a" or key == "^":
723
 
            #     pass            # xxx move-beginning-of-line
724
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
725
 
            #     pass            # xxx left
726
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
727
 
            #     pass            # xxx right
728
 
            # elif key == "a":
729
 
            #     pass            # scroll up log
730
 
            # elif key == "z":
731
 
            #     pass            # scroll down log
 
644
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
645
            #      or key == u">"):
 
646
            #    pass            # xxx end-of-buffer
 
647
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
648
            #      or key == u"<"):
 
649
            #    pass            # xxx beginning-of-buffer
 
650
            #elif key == u"ctrl e" or key == u"$":
 
651
            #    pass            # xxx move-end-of-line
 
652
            #elif key == u"ctrl a" or key == u"^":
 
653
            #    pass            # xxx move-beginning-of-line
 
654
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
655
            #    pass            # xxx left
 
656
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
657
            #    pass            # xxx right
 
658
            #elif key == u"a":
 
659
            #    pass            # scroll up log
 
660
            #elif key == u"z":
 
661
            #    pass            # scroll down log
732
662
            elif self.topwidget.selectable():
733
663
                self.topwidget.keypress(self.size, key)
734
664
                self.refresh()
735
665
        return True
736
666
 
737
 
 
738
667
ui = UserInterface()
739
668
try:
740
669
    ui.run()
741
670
except KeyboardInterrupt:
742
671
    ui.screen.stop()
743
 
except Exception as e:
744
 
    ui.log_message(str(e))
 
672
except Exception, e:
 
673
    ui.log_message(unicode(e))
745
674
    ui.screen.stop()
746
675
    raise