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  • Committer: Teddy Hogeborn
  • Date: 2023-02-07 23:45:43 UTC
  • mfrom: (237.7.819 trunk)
  • Revision ID: teddy@recompile.se-20230207234543-z9xxymrxhsncmfus
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1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
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
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
3
28
 
4
 
from __future__ import division, absolute_import, with_statement
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
5
33
 
6
34
import sys
 
35
import logging
7
36
import os
8
 
import signal
9
 
 
 
37
import warnings
10
38
import datetime
 
39
import locale
11
40
 
12
41
import urwid.curses_display
13
42
import urwid
14
43
 
15
44
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
45
from gi.repository import GLib
17
46
 
18
47
import dbus
19
48
 
20
 
import UserList
 
49
if sys.version_info.major == 2:
 
50
    __metaclass__ = type
 
51
    str = unicode
 
52
    input = raw_input
 
53
 
 
54
# Show warnings by default
 
55
if not sys.warnoptions:
 
56
    warnings.simplefilter("default")
 
57
 
 
58
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
59
logging.basicConfig(level="NOTSET", # Show all messages
 
60
                    format="%(message)s") # Show basic log messages
 
61
 
 
62
logging.captureWarnings(True)   # Show warnings via the logging system
 
63
 
 
64
locale.setlocale(locale.LC_ALL, "")
 
65
 
 
66
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
21
67
 
22
68
# Some useful constants
23
 
domain = 'se.bsnet.fukt'
24
 
server_interface = domain + '.Mandos'
25
 
client_interface = domain + '.Mandos.Client'
26
 
version = "1.0.14"
27
 
 
28
 
# Always run in monochrome mode
29
 
urwid.curses_display.curses.has_colors = lambda : False
30
 
 
31
 
# Urwid doesn't support blinking, but we want it.  Since we have no
32
 
# use for underline on its own, we make underline also always blink.
33
 
urwid.curses_display.curses.A_UNDERLINE |= (
34
 
    urwid.curses_display.curses.A_BLINK)
35
 
 
36
 
class MandosClientPropertyCache(object):
 
69
domain = "se.recompile"
 
70
server_interface = domain + ".Mandos"
 
71
client_interface = domain + ".Mandos.Client"
 
72
version = "1.8.15"
 
73
 
 
74
try:
 
75
    dbus.OBJECT_MANAGER_IFACE
 
76
except AttributeError:
 
77
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
78
 
 
79
 
 
80
def isoformat_to_datetime(iso):
 
81
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
82
    if not iso:
 
83
        return None
 
84
    d, t = iso.split("T", 1)
 
85
    year, month, day = d.split("-", 2)
 
86
    hour, minute, second = t.split(":", 2)
 
87
    second, fraction = divmod(float(second), 1)
 
88
    return datetime.datetime(int(year),
 
89
                             int(month),
 
90
                             int(day),
 
91
                             int(hour),
 
92
                             int(minute),
 
93
                             int(second),            # Whole seconds
 
94
                             int(fraction*1000000))  # Microseconds
 
95
 
 
96
 
 
97
class MandosClientPropertyCache:
37
98
    """This wraps a Mandos Client D-Bus proxy object, caches the
38
99
    properties and calls a hook function when any of them are
39
100
    changed.
40
101
    """
41
 
    def __init__(self, proxy_object=None, properties=None, *args,
42
 
                 **kwargs):
43
 
        self.proxy = proxy_object # Mandos Client proxy object
44
 
        
45
 
        if properties is None:
46
 
            self.properties = dict()
47
 
        else:
48
 
            self.properties = properties
49
 
        self.proxy.connect_to_signal(u"PropertyChanged",
50
 
                                     self.property_changed,
51
 
                                     client_interface,
52
 
                                     byte_arrays=True)
53
 
        
54
 
        if properties is None:
55
 
            self.properties.update(self.proxy.GetAll(client_interface,
56
 
                                                     dbus_interface =
57
 
                                                     dbus.PROPERTIES_IFACE))
58
 
        super(MandosClientPropertyCache, self).__init__(
59
 
            proxy_object=proxy_object,
60
 
            properties=properties, *args, **kwargs)
61
 
    
62
 
    def property_changed(self, property=None, value=None):
63
 
        """This is called whenever we get a PropertyChanged signal
64
 
        It updates the changed property in the "properties" dict.
 
102
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
103
        self.proxy = proxy_object  # Mandos Client proxy object
 
104
        self.properties = dict() if properties is None else properties
 
105
        self.property_changed_match = (
 
106
            self.proxy.connect_to_signal("PropertiesChanged",
 
107
                                         self.properties_changed,
 
108
                                         dbus.PROPERTIES_IFACE,
 
109
                                         byte_arrays=True))
 
110
 
 
111
        if properties is None:
 
112
            self.properties.update(self.proxy.GetAll(
 
113
                client_interface,
 
114
                dbus_interface=dbus.PROPERTIES_IFACE))
 
115
 
 
116
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
117
 
 
118
    def properties_changed(self, interface, properties, invalidated):
 
119
        """This is called whenever we get a PropertiesChanged signal
 
120
        It updates the changed properties in the "properties" dict.
65
121
        """
66
122
        # Update properties dict with new value
67
 
        self.properties[property] = value
 
123
        if interface == client_interface:
 
124
            self.properties.update(properties)
 
125
 
 
126
    def delete(self):
 
127
        self.property_changed_match.remove()
68
128
 
69
129
 
70
130
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
71
131
    """A Mandos Client which is visible on the screen.
72
132
    """
73
 
    
 
133
 
74
134
    def __init__(self, server_proxy_object=None, update_hook=None,
75
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
135
                 delete_hook=None, **kwargs):
76
136
        # Called on update
77
137
        self.update_hook = update_hook
78
138
        # Called on delete
79
139
        self.delete_hook = delete_hook
80
140
        # Mandos Server proxy object
81
141
        self.server_proxy_object = server_proxy_object
82
 
        # Logger
83
 
        self.logger = logger
84
 
        
 
142
 
 
143
        self._update_timer_callback_tag = None
 
144
 
85
145
        # The widget shown normally
86
 
        self._text_widget = urwid.Text(u"")
 
146
        self._text_widget = urwid.Text("")
87
147
        # The widget shown when we have focus
88
 
        self._focus_text_widget = urwid.Text(u"")
89
 
        super(MandosClientWidget, self).__init__(
90
 
            update_hook=update_hook, delete_hook=delete_hook,
91
 
            *args, **kwargs)
 
148
        self._focus_text_widget = urwid.Text("")
 
149
        super(MandosClientWidget, self).__init__(**kwargs)
92
150
        self.update()
93
151
        self.opened = False
94
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
95
 
                                     self.checker_completed,
96
 
                                     client_interface,
97
 
                                     byte_arrays=True)
98
 
        self.proxy.connect_to_signal(u"CheckerStarted",
99
 
                                     self.checker_started,
100
 
                                     client_interface,
101
 
                                     byte_arrays=True)
102
 
        self.proxy.connect_to_signal(u"GotSecret",
103
 
                                     self.got_secret,
104
 
                                     client_interface,
105
 
                                     byte_arrays=True)
106
 
        self.proxy.connect_to_signal(u"Rejected",
107
 
                                     self.rejected,
108
 
                                     client_interface,
109
 
                                     byte_arrays=True)
110
 
    
 
152
 
 
153
        self.match_objects = (
 
154
            self.proxy.connect_to_signal("CheckerCompleted",
 
155
                                         self.checker_completed,
 
156
                                         client_interface,
 
157
                                         byte_arrays=True),
 
158
            self.proxy.connect_to_signal("CheckerStarted",
 
159
                                         self.checker_started,
 
160
                                         client_interface,
 
161
                                         byte_arrays=True),
 
162
            self.proxy.connect_to_signal("GotSecret",
 
163
                                         self.got_secret,
 
164
                                         client_interface,
 
165
                                         byte_arrays=True),
 
166
            self.proxy.connect_to_signal("NeedApproval",
 
167
                                         self.need_approval,
 
168
                                         client_interface,
 
169
                                         byte_arrays=True),
 
170
            self.proxy.connect_to_signal("Rejected",
 
171
                                         self.rejected,
 
172
                                         client_interface,
 
173
                                         byte_arrays=True))
 
174
        log.debug("Created client %s", self.properties["Name"])
 
175
 
 
176
    def using_timer(self, flag):
 
177
        """Call this method with True or False when timer should be
 
178
        activated or deactivated.
 
179
        """
 
180
        if flag and self._update_timer_callback_tag is None:
 
181
            # Will update the shown timer value every second
 
182
            self._update_timer_callback_tag = (
 
183
                GLib.timeout_add(1000,
 
184
                                 glib_safely(self.update_timer)))
 
185
        elif not (flag or self._update_timer_callback_tag is None):
 
186
            GLib.source_remove(self._update_timer_callback_tag)
 
187
            self._update_timer_callback_tag = None
 
188
 
111
189
    def checker_completed(self, exitstatus, condition, command):
112
190
        if exitstatus == 0:
113
 
            self.logger(u'Checker for client %s (command "%s")'
114
 
                        u' was successful'
115
 
                        % (self.properties[u"name"], command))
 
191
            log.debug('Checker for client %s (command "%s")'
 
192
                      " succeeded", self.properties["Name"], command)
 
193
            self.update()
116
194
            return
 
195
        # Checker failed
117
196
        if os.WIFEXITED(condition):
118
 
            self.logger(u'Checker for client %s (command "%s")'
119
 
                        u' failed with exit code %s'
120
 
                        % (self.properties[u"name"], command,
121
 
                           os.WEXITSTATUS(condition)))
122
 
            return
123
 
        if os.WIFSIGNALED(condition):
124
 
            self.logger(u'Checker for client %s (command "%s")'
125
 
                        u' was killed by signal %s'
126
 
                        % (self.properties[u"name"], command,
127
 
                           os.WTERMSIG(condition)))
128
 
            return
129
 
        if os.WCOREDUMP(condition):
130
 
            self.logger(u'Checker for client %s (command "%s")'
131
 
                        u' dumped core'
132
 
                        % (self.properties[u"name"], command))
133
 
        self.logger(u'Checker for client %s completed mysteriously')
134
 
    
 
197
            log.info('Checker for client %s (command "%s") failed'
 
198
                     " with exit code %d", self.properties["Name"],
 
199
                     command, os.WEXITSTATUS(condition))
 
200
        elif os.WIFSIGNALED(condition):
 
201
            log.info('Checker for client %s (command "%s") was'
 
202
                     " killed by signal %d", self.properties["Name"],
 
203
                     command, os.WTERMSIG(condition))
 
204
        self.update()
 
205
 
135
206
    def checker_started(self, command):
136
 
        self.logger(u'Client %s started checker "%s"'
137
 
                    % (self.properties[u"name"], unicode(command)))
138
 
    
 
207
        """Server signals that a checker started."""
 
208
        log.debug('Client %s started checker "%s"',
 
209
                  self.properties["Name"], command)
 
210
 
139
211
    def got_secret(self):
140
 
        self.logger(u'Client %s received its secret'
141
 
                    % self.properties[u"name"])
142
 
    
143
 
    def rejected(self):
144
 
        self.logger(u'Client %s was rejected'
145
 
                    % self.properties[u"name"])
146
 
    
 
212
        log.info("Client %s received its secret",
 
213
                 self.properties["Name"])
 
214
 
 
215
    def need_approval(self, timeout, default):
 
216
        if not default:
 
217
            message = "Client %s needs approval within %f seconds"
 
218
        else:
 
219
            message = "Client %s will get its secret in %f seconds"
 
220
        log.info(message, self.properties["Name"], timeout/1000)
 
221
 
 
222
    def rejected(self, reason):
 
223
        log.info("Client %s was rejected; reason: %s",
 
224
                 self.properties["Name"], reason)
 
225
 
147
226
    def selectable(self):
148
227
        """Make this a "selectable" widget.
149
228
        This overrides the method from urwid.FlowWidget."""
150
229
        return True
151
 
    
152
 
    def rows(self, (maxcol,), focus=False):
 
230
 
 
231
    def rows(self, maxcolrow, focus=False):
153
232
        """How many rows this widget will occupy might depend on
154
233
        whether we have focus or not.
155
234
        This overrides the method from urwid.FlowWidget"""
156
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
157
 
    
 
235
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
236
 
158
237
    def current_widget(self, focus=False):
159
238
        if focus or self.opened:
160
239
            return self._focus_widget
161
240
        return self._widget
162
 
    
 
241
 
163
242
    def update(self):
164
243
        "Called when what is visible on the screen should be updated."
165
244
        # How to add standout mode to a style
166
 
        with_standout = { u"normal": u"standout",
167
 
                          u"bold": u"bold-standout",
168
 
                          u"underline-blink":
169
 
                              u"underline-blink-standout",
170
 
                          u"bold-underline-blink":
171
 
                              u"bold-underline-blink-standout",
172
 
                          }
173
 
        
 
245
        with_standout = {"normal": "standout",
 
246
                         "bold": "bold-standout",
 
247
                         "underline-blink":
 
248
                         "underline-blink-standout",
 
249
                         "bold-underline-blink":
 
250
                         "bold-underline-blink-standout",
 
251
                         }
 
252
 
174
253
        # Rebuild focus and non-focus widgets using current properties
175
 
        self._text = (u'%(name)s: %(enabled)s'
176
 
                      % { u"name": self.properties[u"name"],
177
 
                          u"enabled":
178
 
                              (u"enabled"
179
 
                               if self.properties[u"enabled"]
180
 
                               else u"DISABLED")})
 
254
 
 
255
        # Base part of a client. Name!
 
256
        base = "{name}: ".format(name=self.properties["Name"])
 
257
        if not self.properties["Enabled"]:
 
258
            message = "DISABLED"
 
259
            self.using_timer(False)
 
260
        elif self.properties["ApprovalPending"]:
 
261
            timeout = datetime.timedelta(
 
262
                milliseconds=self.properties["ApprovalDelay"])
 
263
            last_approval_request = isoformat_to_datetime(
 
264
                self.properties["LastApprovalRequest"])
 
265
            if last_approval_request is not None:
 
266
                timer = max(timeout - (datetime.datetime.utcnow()
 
267
                                       - last_approval_request),
 
268
                            datetime.timedelta())
 
269
            else:
 
270
                timer = datetime.timedelta()
 
271
            if self.properties["ApprovedByDefault"]:
 
272
                message = "Approval in {}. (d)eny?"
 
273
            else:
 
274
                message = "Denial in {}. (a)pprove?"
 
275
            message = message.format(str(timer).rsplit(".", 1)[0])
 
276
            self.using_timer(True)
 
277
        elif self.properties["LastCheckerStatus"] != 0:
 
278
            # When checker has failed, show timer until client expires
 
279
            expires = self.properties["Expires"]
 
280
            if expires == "":
 
281
                timer = datetime.timedelta(0)
 
282
            else:
 
283
                expires = (datetime.datetime.strptime
 
284
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
285
                timer = max(expires - datetime.datetime.utcnow(),
 
286
                            datetime.timedelta())
 
287
            message = ("A checker has failed! Time until client"
 
288
                       " gets disabled: {}"
 
289
                       .format(str(timer).rsplit(".", 1)[0]))
 
290
            self.using_timer(True)
 
291
        else:
 
292
            message = "enabled"
 
293
            self.using_timer(False)
 
294
        self._text = "{}{}".format(base, message)
 
295
 
181
296
        if not urwid.supports_unicode():
182
297
            self._text = self._text.encode("ascii", "replace")
183
 
        textlist = [(u"normal", self._text)]
 
298
        textlist = [("normal", self._text)]
184
299
        self._text_widget.set_text(textlist)
185
300
        self._focus_text_widget.set_text([(with_standout[text[0]],
186
301
                                           text[1])
193
308
        # Run update hook, if any
194
309
        if self.update_hook is not None:
195
310
            self.update_hook()
196
 
    
197
 
    def delete(self):
 
311
 
 
312
    def update_timer(self):
 
313
        """called by GLib. Will indefinitely loop until
 
314
        GLib.source_remove() on tag is called
 
315
        """
 
316
        self.update()
 
317
        return True             # Keep calling this
 
318
 
 
319
    def delete(self, **kwargs):
 
320
        if self._update_timer_callback_tag is not None:
 
321
            GLib.source_remove(self._update_timer_callback_tag)
 
322
            self._update_timer_callback_tag = None
 
323
        for match in self.match_objects:
 
324
            match.remove()
 
325
        self.match_objects = ()
198
326
        if self.delete_hook is not None:
199
327
            self.delete_hook(self)
200
 
    
201
 
    def render(self, (maxcol,), focus=False):
 
328
        return super(MandosClientWidget, self).delete(**kwargs)
 
329
 
 
330
    def render(self, maxcolrow, focus=False):
202
331
        """Render differently if we have focus.
203
332
        This overrides the method from urwid.FlowWidget"""
204
 
        return self.current_widget(focus).render((maxcol,),
 
333
        return self.current_widget(focus).render(maxcolrow,
205
334
                                                 focus=focus)
206
 
    
207
 
    def keypress(self, (maxcol,), key):
 
335
 
 
336
    def keypress(self, maxcolrow, key):
208
337
        """Handle keys.
209
338
        This overrides the method from urwid.FlowWidget"""
210
 
        if key == u"e" or key == u"+":
211
 
            self.proxy.Enable()
212
 
        elif key == u"d" or key == u"-":
213
 
            self.proxy.Disable()
214
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
339
        if key == "+":
 
340
            self.proxy.Set(client_interface, "Enabled",
 
341
                           dbus.Boolean(True), ignore_reply=True,
 
342
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
343
        elif key == "-":
 
344
            self.proxy.Set(client_interface, "Enabled", False,
 
345
                           ignore_reply=True,
 
346
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
347
        elif key == "a":
 
348
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
349
                               dbus_interface=client_interface,
 
350
                               ignore_reply=True)
 
351
        elif key == "d":
 
352
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
353
                               dbus_interface=client_interface,
 
354
                               ignore_reply=True)
 
355
        elif key == "R" or key == "_" or key == "ctrl k":
215
356
            self.server_proxy_object.RemoveClient(self.proxy
216
 
                                                  .object_path)
217
 
        elif key == u"s":
218
 
            self.proxy.StartChecker()
219
 
        elif key == u"S":
220
 
            self.proxy.StopChecker()
221
 
        elif key == u"C":
222
 
            self.proxy.CheckedOK()
 
357
                                                  .object_path,
 
358
                                                  ignore_reply=True)
 
359
        elif key == "s":
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
                           dbus.Boolean(True), ignore_reply=True,
 
362
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
363
        elif key == "S":
 
364
            self.proxy.Set(client_interface, "CheckerRunning",
 
365
                           dbus.Boolean(False), ignore_reply=True,
 
366
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
367
        elif key == "C":
 
368
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
369
                                 ignore_reply=True)
223
370
        # xxx
224
 
#         elif key == u"p" or key == "=":
 
371
#         elif key == "p" or key == "=":
225
372
#             self.proxy.pause()
226
 
#         elif key == u"u" or key == ":":
 
373
#         elif key == "u" or key == ":":
227
374
#             self.proxy.unpause()
228
 
#         elif key == u"RET":
 
375
#         elif key == "RET":
229
376
#             self.open()
230
377
        else:
231
378
            return key
232
 
    
233
 
    def property_changed(self, property=None, value=None,
234
 
                         *args, **kwargs):
235
 
        """Call self.update() if old value is not new value.
 
379
 
 
380
    def properties_changed(self, interface, properties, invalidated):
 
381
        """Call self.update() if any properties changed.
236
382
        This overrides the method from MandosClientPropertyCache"""
237
 
        property_name = unicode(property)
238
 
        old_value = self.properties.get(property_name)
239
 
        super(MandosClientWidget, self).property_changed(
240
 
            property=property, value=value, *args, **kwargs)
241
 
        if self.properties.get(property_name) != old_value:
 
383
        old_values = {key: self.properties.get(key)
 
384
                      for key in properties.keys()}
 
385
        super(MandosClientWidget, self).properties_changed(
 
386
            interface, properties, invalidated)
 
387
        if any(old_values[key] != self.properties.get(key)
 
388
               for key in old_values):
242
389
            self.update()
243
390
 
244
391
 
 
392
def glib_safely(func, retval=True):
 
393
    def safe_func(*args, **kwargs):
 
394
        try:
 
395
            return func(*args, **kwargs)
 
396
        except Exception:
 
397
            log.exception("")
 
398
            return retval
 
399
    return safe_func
 
400
 
 
401
 
245
402
class ConstrainedListBox(urwid.ListBox):
246
403
    """Like a normal urwid.ListBox, but will consume all "up" or
247
404
    "down" key presses, thus not allowing any containing widgets to
248
405
    use them as an excuse to shift focus away from this widget.
249
406
    """
250
 
    def keypress(self, (maxcol, maxrow), key):
251
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
252
 
        if ret in (u"up", u"down"):
 
407
    def keypress(self, *args, **kwargs):
 
408
        ret = (super(ConstrainedListBox, self)
 
409
               .keypress(*args, **kwargs))
 
410
        if ret in ("up", "down"):
253
411
            return
254
412
        return ret
255
413
 
256
414
 
257
 
class UserInterface(object):
 
415
class UserInterface:
258
416
    """This is the entire user interface - the whole screen
259
417
    with boxes, lists of client widgets, etc.
260
418
    """
261
419
    def __init__(self, max_log_length=1000):
262
420
        DBusGMainLoop(set_as_default=True)
263
 
        
 
421
 
264
422
        self.screen = urwid.curses_display.Screen()
265
 
        
 
423
 
266
424
        self.screen.register_palette((
267
 
                (u"normal",
268
 
                 u"default", u"default", None),
269
 
                (u"bold",
270
 
                 u"default", u"default", u"bold"),
271
 
                (u"underline-blink",
272
 
                 u"default", u"default", u"underline"),
273
 
                (u"standout",
274
 
                 u"default", u"default", u"standout"),
275
 
                (u"bold-underline-blink",
276
 
                 u"default", u"default", (u"bold", u"underline")),
277
 
                (u"bold-standout",
278
 
                 u"default", u"default", (u"bold", u"standout")),
279
 
                (u"underline-blink-standout",
280
 
                 u"default", u"default", (u"underline", u"standout")),
281
 
                (u"bold-underline-blink-standout",
282
 
                 u"default", u"default", (u"bold", u"underline",
283
 
                                          u"standout")),
 
425
                ("normal",
 
426
                 "default", "default", None),
 
427
                ("bold",
 
428
                 "bold", "default", "bold"),
 
429
                ("underline-blink",
 
430
                 "underline,blink", "default", "underline,blink"),
 
431
                ("standout",
 
432
                 "standout", "default", "standout"),
 
433
                ("bold-underline-blink",
 
434
                 "bold,underline,blink", "default",
 
435
                 "bold,underline,blink"),
 
436
                ("bold-standout",
 
437
                 "bold,standout", "default", "bold,standout"),
 
438
                ("underline-blink-standout",
 
439
                 "underline,blink,standout", "default",
 
440
                 "underline,blink,standout"),
 
441
                ("bold-underline-blink-standout",
 
442
                 "bold,underline,blink,standout", "default",
 
443
                 "bold,underline,blink,standout"),
284
444
                ))
285
 
        
 
445
 
286
446
        if urwid.supports_unicode():
287
 
            self.divider = u"─" # \u2500
288
 
            #self.divider = u"━" # \u2501
 
447
            self.divider = "─"  # \u2500
289
448
        else:
290
 
            #self.divider = u"-" # \u002d
291
 
            self.divider = u"_" # \u005f
292
 
        
 
449
            self.divider = "_"  # \u005f
 
450
 
293
451
        self.screen.start()
294
 
        
 
452
 
295
453
        self.size = self.screen.get_cols_rows()
296
 
        
 
454
 
297
455
        self.clients = urwid.SimpleListWalker([])
298
456
        self.clients_dict = {}
299
 
        
 
457
 
300
458
        # We will add Text widgets to this list
301
 
        self.log = []
 
459
        self.log = urwid.SimpleListWalker([])
302
460
        self.max_log_length = max_log_length
303
 
        
 
461
 
304
462
        # We keep a reference to the log widget so we can remove it
305
463
        # from the ListWalker without it getting destroyed
306
464
        self.logbox = ConstrainedListBox(self.log)
307
 
        
 
465
 
308
466
        # This keeps track of whether self.uilist currently has
309
467
        # self.logbox in it or not
310
468
        self.log_visible = True
311
 
        self.log_wrap = u"any"
312
 
        
 
469
        self.log_wrap = "any"
 
470
 
 
471
        self.loghandler = UILogHandler(self)
 
472
 
313
473
        self.rebuild()
314
 
        self.log_message_raw((u"bold",
315
 
                              u"Mandos Monitor version " + version))
316
 
        self.log_message_raw((u"bold",
317
 
                              u"q: Quit  ?: Help"))
318
 
        
319
 
        self.busname = domain + '.Mandos'
320
 
        self.main_loop = gobject.MainLoop()
321
 
        self.bus = dbus.SystemBus()
322
 
        mandos_dbus_objc = self.bus.get_object(
323
 
            self.busname, u"/", follow_name_owner_changes=True)
324
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
325
 
                                          dbus_interface
326
 
                                          = server_interface)
327
 
        try:
328
 
            mandos_clients = (self.mandos_serv
329
 
                              .GetAllClientsWithProperties())
330
 
        except dbus.exceptions.DBusException:
331
 
            mandos_clients = dbus.Dictionary()
332
 
        
333
 
        (self.mandos_serv
334
 
         .connect_to_signal(u"ClientRemoved",
335
 
                            self.find_and_remove_client,
336
 
                            dbus_interface=server_interface,
337
 
                            byte_arrays=True))
338
 
        (self.mandos_serv
339
 
         .connect_to_signal(u"ClientAdded",
340
 
                            self.add_new_client,
341
 
                            dbus_interface=server_interface,
342
 
                            byte_arrays=True))
343
 
        (self.mandos_serv
344
 
         .connect_to_signal(u"ClientNotFound",
345
 
                            self.client_not_found,
346
 
                            dbus_interface=server_interface,
347
 
                            byte_arrays=True))
348
 
        for path, client in mandos_clients.iteritems():
349
 
            client_proxy_object = self.bus.get_object(self.busname,
350
 
                                                      path)
351
 
            self.add_client(MandosClientWidget(server_proxy_object
352
 
                                               =self.mandos_serv,
353
 
                                               proxy_object
354
 
                                               =client_proxy_object,
355
 
                                               properties=client,
356
 
                                               update_hook
357
 
                                               =self.refresh,
358
 
                                               delete_hook
359
 
                                               =self.remove_client,
360
 
                                               logger
361
 
                                               =self.log_message),
362
 
                            path=path)
363
 
    
364
 
    def client_not_found(self, fingerprint, address):
365
 
        self.log_message((u"Client with address %s and fingerprint %s"
366
 
                          u" could not be found" % (address,
367
 
                                                    fingerprint)))
368
 
    
 
474
        self.add_log_line(("bold",
 
475
                           "Mandos Monitor version " + version))
 
476
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
477
 
 
478
        self.busname = domain + ".Mandos"
 
479
        self.main_loop = GLib.MainLoop()
 
480
 
 
481
    def client_not_found(self, key_id, address):
 
482
        log.info("Client with address %s and key ID %s could"
 
483
                 " not be found", address, key_id)
 
484
 
369
485
    def rebuild(self):
370
486
        """This rebuilds the User Interface.
371
487
        Call this when the widget layout needs to change"""
372
488
        self.uilist = []
373
 
        #self.uilist.append(urwid.ListBox(self.clients))
374
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
375
 
                                       #header=urwid.Divider(),
 
489
        # self.uilist.append(urwid.ListBox(self.clients))
 
490
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
491
                                                          clients),
 
492
                                       # header=urwid.Divider(),
376
493
                                       header=None,
377
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
494
                                       footer=urwid.Divider(
 
495
                                           div_char=self.divider)))
378
496
        if self.log_visible:
379
497
            self.uilist.append(self.logbox)
380
 
            pass
381
498
        self.topwidget = urwid.Pile(self.uilist)
382
 
    
383
 
    def log_message(self, message):
384
 
        timestamp = datetime.datetime.now().isoformat()
385
 
        self.log_message_raw(timestamp + u": " + message)
386
 
    
387
 
    def log_message_raw(self, markup):
388
 
        """Add a log message to the log buffer."""
 
499
 
 
500
    def add_log_line(self, markup):
389
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
390
 
        if (self.max_log_length
391
 
            and len(self.log) > self.max_log_length):
392
 
            del self.log[0:len(self.log)-self.max_log_length-1]
393
 
        self.logbox.set_focus(len(self.logbox.body.contents),
394
 
                              coming_from=u"above")
 
502
        if self.max_log_length:
 
503
            if len(self.log) > self.max_log_length:
 
504
                del self.log[0:(len(self.log) - self.max_log_length)]
 
505
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
506
                              coming_from="above")
395
507
        self.refresh()
396
 
    
 
508
 
397
509
    def toggle_log_display(self):
398
510
        """Toggle visibility of the log buffer."""
399
511
        self.log_visible = not self.log_visible
400
512
        self.rebuild()
401
 
        self.log_message(u"Log visibility changed to: "
402
 
                         + unicode(self.log_visible))
403
 
    
 
513
        log.debug("Log visibility changed to: %s", self.log_visible)
 
514
 
404
515
    def change_log_display(self):
405
516
        """Change type of log display.
406
517
        Currently, this toggles wrapping of text lines."""
407
 
        if self.log_wrap == u"clip":
408
 
            self.log_wrap = u"any"
 
518
        if self.log_wrap == "clip":
 
519
            self.log_wrap = "any"
409
520
        else:
410
 
            self.log_wrap = u"clip"
 
521
            self.log_wrap = "clip"
411
522
        for textwidget in self.log:
412
523
            textwidget.set_wrap_mode(self.log_wrap)
413
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
414
 
    
415
 
    def find_and_remove_client(self, path, name):
416
 
        """Find an client from its object path and remove it.
417
 
        
418
 
        This is connected to the ClientRemoved signal from the
 
524
        log.debug("Wrap mode: %s", self.log_wrap)
 
525
 
 
526
    def find_and_remove_client(self, path, interfaces):
 
527
        """Find a client by its object path and remove it.
 
528
 
 
529
        This is connected to the InterfacesRemoved signal from the
419
530
        Mandos server object."""
 
531
        if client_interface not in interfaces:
 
532
            # Not a Mandos client object; ignore
 
533
            return
420
534
        try:
421
535
            client = self.clients_dict[path]
422
536
        except KeyError:
423
537
            # not found?
424
 
            return
425
 
        self.remove_client(client, path)
426
 
    
427
 
    def add_new_client(self, path, properties):
 
538
            log.warning("Unknown client %s removed", path)
 
539
            return
 
540
        client.delete()
 
541
 
 
542
    def add_new_client(self, path, ifs_and_props):
 
543
        """Find a client by its object path and remove it.
 
544
 
 
545
        This is connected to the InterfacesAdded signal from the
 
546
        Mandos server object.
 
547
        """
 
548
        if client_interface not in ifs_and_props:
 
549
            # Not a Mandos client object; ignore
 
550
            return
428
551
        client_proxy_object = self.bus.get_object(self.busname, path)
429
 
        self.add_client(MandosClientWidget(server_proxy_object
430
 
                                           =self.mandos_serv,
431
 
                                           proxy_object
432
 
                                           =client_proxy_object,
433
 
                                           properties=properties,
434
 
                                           update_hook
435
 
                                           =self.refresh,
436
 
                                           delete_hook
437
 
                                           =self.remove_client),
 
552
        self.add_client(MandosClientWidget(
 
553
            server_proxy_object=self.mandos_serv,
 
554
            proxy_object=client_proxy_object,
 
555
            update_hook=self.refresh,
 
556
            delete_hook=self.remove_client,
 
557
            properties=dict(ifs_and_props[client_interface])),
438
558
                        path=path)
439
 
    
 
559
 
440
560
    def add_client(self, client, path=None):
441
561
        self.clients.append(client)
442
562
        if path is None:
443
563
            path = client.proxy.object_path
444
564
        self.clients_dict[path] = client
445
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
565
        self.clients.sort(key=lambda c: c.properties["Name"])
446
566
        self.refresh()
447
 
    
 
567
 
448
568
    def remove_client(self, client, path=None):
449
569
        self.clients.remove(client)
450
570
        if path is None:
451
571
            path = client.proxy.object_path
452
572
        del self.clients_dict[path]
453
 
        if not self.clients_dict:
454
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
455
 
            # is completely emptied, we need to recreate it.
456
 
            self.clients = urwid.SimpleListWalker([])
457
 
            self.rebuild()
458
573
        self.refresh()
459
 
    
 
574
 
460
575
    def refresh(self):
461
576
        """Redraw the screen"""
462
577
        canvas = self.topwidget.render(self.size, focus=True)
463
578
        self.screen.draw_screen(self.size, canvas)
464
 
    
 
579
 
465
580
    def run(self):
466
581
        """Start the main loop and exit when it's done."""
 
582
        log.addHandler(self.loghandler)
 
583
        self.orig_log_propagate = log.propagate
 
584
        log.propagate = False
 
585
        self.orig_log_level = log.level
 
586
        log.setLevel("INFO")
 
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
                log.warning("Note: Server has no clients.")
 
597
        except dbus.exceptions.DBusException:
 
598
            log.warning("Note: No Mandos server running.")
 
599
            mandos_clients = dbus.Dictionary()
 
600
 
 
601
        (self.mandos_serv
 
602
         .connect_to_signal("InterfacesRemoved",
 
603
                            self.find_and_remove_client,
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
605
                            byte_arrays=True))
 
606
        (self.mandos_serv
 
607
         .connect_to_signal("InterfacesAdded",
 
608
                            self.add_new_client,
 
609
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
610
                            byte_arrays=True))
 
611
        (self.mandos_serv
 
612
         .connect_to_signal("ClientNotFound",
 
613
                            self.client_not_found,
 
614
                            dbus_interface=server_interface,
 
615
                            byte_arrays=True))
 
616
        for path, client in mandos_clients.items():
 
617
            client_proxy_object = self.bus.get_object(self.busname,
 
618
                                                      path)
 
619
            self.add_client(MandosClientWidget(
 
620
                server_proxy_object=self.mandos_serv,
 
621
                proxy_object=client_proxy_object,
 
622
                properties=client,
 
623
                update_hook=self.refresh,
 
624
                delete_hook=self.remove_client),
 
625
                            path=path)
 
626
 
467
627
        self.refresh()
468
 
        self._input_callback_tag = (gobject.io_add_watch
469
 
                                    (sys.stdin.fileno(),
470
 
                                     gobject.IO_IN,
471
 
                                     self.process_input))
 
628
        self._input_callback_tag = (
 
629
            GLib.io_add_watch(
 
630
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
631
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
632
                glib_safely(self.process_input)))
472
633
        self.main_loop.run()
473
634
        # Main loop has finished, we should close everything now
474
 
        gobject.source_remove(self._input_callback_tag)
475
 
        self.screen.stop()
476
 
    
 
635
        GLib.source_remove(self._input_callback_tag)
 
636
        with warnings.catch_warnings():
 
637
            warnings.simplefilter("ignore", BytesWarning)
 
638
            self.screen.stop()
 
639
 
477
640
    def stop(self):
478
641
        self.main_loop.quit()
479
 
    
 
642
        log.removeHandler(self.loghandler)
 
643
        log.propagate = self.orig_log_propagate
 
644
 
480
645
    def process_input(self, source, condition):
481
646
        keys = self.screen.get_input()
482
 
        translations = { u"ctrl n": u"down",      # Emacs
483
 
                         u"ctrl p": u"up",        # Emacs
484
 
                         u"ctrl v": u"page down", # Emacs
485
 
                         u"meta v": u"page up",   # Emacs
486
 
                         u" ": u"page down",      # less
487
 
                         u"f": u"page down",      # less
488
 
                         u"b": u"page up",        # less
489
 
                         u"j": u"down",           # vi
490
 
                         u"k": u"up",             # vi
491
 
                         }
 
647
        translations = {"ctrl n": "down",       # Emacs
 
648
                        "ctrl p": "up",         # Emacs
 
649
                        "ctrl v": "page down",  # Emacs
 
650
                        "meta v": "page up",    # Emacs
 
651
                        " ": "page down",       # less
 
652
                        "f": "page down",       # less
 
653
                        "b": "page up",         # less
 
654
                        "j": "down",            # vi
 
655
                        "k": "up",              # vi
 
656
                        }
492
657
        for key in keys:
493
658
            try:
494
659
                key = translations[key]
495
660
            except KeyError:    # :-)
496
661
                pass
497
 
            
498
 
            if key == u"q" or key == u"Q":
 
662
 
 
663
            if key == "q" or key == "Q":
499
664
                self.stop()
500
665
                break
501
 
            elif key == u"window resize":
 
666
            elif key == "window resize":
502
667
                self.size = self.screen.get_cols_rows()
503
668
                self.refresh()
504
 
            elif key == u"\f":  # Ctrl-L
 
669
            elif key == "ctrl l":
 
670
                self.screen.clear()
505
671
                self.refresh()
506
 
            elif key == u"l" or key == u"D":
 
672
            elif key == "l" or key == "D":
507
673
                self.toggle_log_display()
508
674
                self.refresh()
509
 
            elif key == u"w" or key == u"i":
 
675
            elif key == "w" or key == "i":
510
676
                self.change_log_display()
511
677
                self.refresh()
512
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
678
            elif key == "?" or key == "f1" or key == "esc":
513
679
                if not self.log_visible:
514
680
                    self.log_visible = True
515
681
                    self.rebuild()
516
 
                self.log_message_raw((u"bold",
517
 
                                      u"  ".
518
 
                                      join((u"q: Quit",
519
 
                                            u"?: Help",
520
 
                                            u"l: Log window toggle",
521
 
                                            u"TAB: Switch window",
522
 
                                            u"w: Wrap (log)"))))
523
 
                self.log_message_raw((u"bold",
524
 
                                      u"  "
525
 
                                      .join((u"Clients:",
526
 
                                             u"e: Enable",
527
 
                                             u"d: Disable",
528
 
                                             u"r: Remove",
529
 
                                             u"s: Start new checker",
530
 
                                             u"S: Stop checker",
531
 
                                             u"C: Checker OK"))))
 
682
                self.add_log_line(("bold",
 
683
                                   "  ".join(("q: Quit",
 
684
                                              "?: Help",
 
685
                                              "l: Log window toggle",
 
686
                                              "TAB: Switch window",
 
687
                                              "w: Wrap (log lines)",
 
688
                                              "v: Toggle verbose log",
 
689
                                   ))))
 
690
                self.add_log_line(("bold",
 
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",
 
700
                                   ))))
532
701
                self.refresh()
533
 
            elif key == u"tab":
 
702
            elif key == "tab":
534
703
                if self.topwidget.get_focus() is self.logbox:
535
704
                    self.topwidget.set_focus(0)
536
705
                else:
537
706
                    self.topwidget.set_focus(self.logbox)
538
707
                self.refresh()
539
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
540
 
            #      or key == u">"):
541
 
            #    pass            # xxx end-of-buffer
542
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
543
 
            #      or key == u"<"):
544
 
            #    pass            # xxx beginning-of-buffer
545
 
            #elif key == u"ctrl e" or key == u"$":
546
 
            #    pass            # xxx move-end-of-line
547
 
            #elif key == u"ctrl a" or key == u"^":
548
 
            #    pass            # xxx move-beginning-of-line
549
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
550
 
            #    pass            # xxx left
551
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
552
 
            #    pass            # xxx right
553
 
            #elif key == u"a":
554
 
            #    pass            # scroll up log
555
 
            #elif key == u"z":
556
 
            #    pass            # scroll down log
 
708
            elif key == "v":
 
709
                if log.level < logging.INFO:
 
710
                    log.setLevel(logging.INFO)
 
711
                    log.info("Verbose mode: Off")
 
712
                else:
 
713
                    log.setLevel(logging.NOTSET)
 
714
                    log.info("Verbose mode: On")
 
715
            # elif (key == "end" or key == "meta >" or key == "G"
 
716
            #       or key == ">"):
 
717
            #     pass            # xxx end-of-buffer
 
718
            # elif (key == "home" or key == "meta <" or key == "g"
 
719
            #       or key == "<"):
 
720
            #     pass            # xxx beginning-of-buffer
 
721
            # elif key == "ctrl e" or key == "$":
 
722
            #     pass            # xxx move-end-of-line
 
723
            # elif key == "ctrl a" or key == "^":
 
724
            #     pass            # xxx move-beginning-of-line
 
725
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
726
            #     pass            # xxx left
 
727
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
728
            #     pass            # xxx right
 
729
            # elif key == "a":
 
730
            #     pass            # scroll up log
 
731
            # elif key == "z":
 
732
            #     pass            # scroll down log
557
733
            elif self.topwidget.selectable():
558
734
                self.topwidget.keypress(self.size, key)
559
735
                self.refresh()
560
736
        return True
561
737
 
 
738
 
 
739
class UILogHandler(logging.Handler):
 
740
    def __init__(self, ui, *args, **kwargs):
 
741
        self.ui = ui
 
742
        super(UILogHandler, self).__init__(*args, **kwargs)
 
743
        self.setFormatter(
 
744
            logging.Formatter("%(asctime)s: %(message)s"))
 
745
    def emit(self, record):
 
746
        msg = self.format(record)
 
747
        if record.levelno > logging.INFO:
 
748
            msg = ("bold", msg)
 
749
        self.ui.add_log_line(msg)
 
750
 
 
751
 
562
752
ui = UserInterface()
563
753
try:
564
754
    ui.run()
565
 
except:
566
 
    ui.screen.stop()
 
755
except KeyboardInterrupt:
 
756
    with warnings.catch_warnings():
 
757
        warnings.filterwarnings("ignore", "", BytesWarning)
 
758
        ui.screen.stop()
 
759
except Exception:
 
760
    with warnings.catch_warnings():
 
761
        warnings.filterwarnings("ignore", "", BytesWarning)
 
762
        ui.screen.stop()
567
763
    raise