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  • Committer: teddy at recompile
  • Date: 2020-07-04 13:39:36 UTC
  • mfrom: (237.4.132 release)
  • Revision ID: teddy@recompile.se-20200704133936-lfk4sy1d48m53iqu
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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
#
3
26
 
4
 
from __future__ import division, absolute_import, with_statement
 
27
from __future__ import (division, absolute_import, print_function,
 
28
                        unicode_literals)
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
5
33
 
6
34
import sys
7
35
import os
8
 
import signal
9
 
 
 
36
import warnings
10
37
import datetime
 
38
import locale
 
39
import logging
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
 
 
53
log = logging.getLogger(os.path.basename(sys.argv[0]))
 
54
logging.basicConfig(level="NOTSET", # Show all messages
 
55
                    format="%(message)s") # Show basic log messages
 
56
 
 
57
logging.captureWarnings(True)   # Show warnings via the logging system
 
58
 
 
59
locale.setlocale(locale.LC_ALL, "")
 
60
 
 
61
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
21
62
 
22
63
# 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):
 
64
domain = "se.recompile"
 
65
server_interface = domain + ".Mandos"
 
66
client_interface = domain + ".Mandos.Client"
 
67
version = "1.8.12"
 
68
 
 
69
try:
 
70
    dbus.OBJECT_MANAGER_IFACE
 
71
except AttributeError:
 
72
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
73
 
 
74
 
 
75
def isoformat_to_datetime(iso):
 
76
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
77
    if not iso:
 
78
        return None
 
79
    d, t = iso.split("T", 1)
 
80
    year, month, day = d.split("-", 2)
 
81
    hour, minute, second = t.split(":", 2)
 
82
    second, fraction = divmod(float(second), 1)
 
83
    return datetime.datetime(int(year),
 
84
                             int(month),
 
85
                             int(day),
 
86
                             int(hour),
 
87
                             int(minute),
 
88
                             int(second),            # Whole seconds
 
89
                             int(fraction*1000000))  # Microseconds
 
90
 
 
91
 
 
92
class MandosClientPropertyCache:
37
93
    """This wraps a Mandos Client D-Bus proxy object, caches the
38
94
    properties and calls a hook function when any of them are
39
95
    changed.
40
96
    """
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.
 
97
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
98
        self.proxy = proxy_object  # Mandos Client proxy object
 
99
        self.properties = dict() if properties is None else properties
 
100
        self.property_changed_match = (
 
101
            self.proxy.connect_to_signal("PropertiesChanged",
 
102
                                         self.properties_changed,
 
103
                                         dbus.PROPERTIES_IFACE,
 
104
                                         byte_arrays=True))
 
105
 
 
106
        if properties is None:
 
107
            self.properties.update(self.proxy.GetAll(
 
108
                client_interface,
 
109
                dbus_interface=dbus.PROPERTIES_IFACE))
 
110
 
 
111
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
112
 
 
113
    def properties_changed(self, interface, properties, invalidated):
 
114
        """This is called whenever we get a PropertiesChanged signal
 
115
        It updates the changed properties in the "properties" dict.
65
116
        """
66
117
        # Update properties dict with new value
67
 
        self.properties[property] = value
 
118
        if interface == client_interface:
 
119
            self.properties.update(properties)
 
120
 
 
121
    def delete(self):
 
122
        self.property_changed_match.remove()
68
123
 
69
124
 
70
125
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
71
126
    """A Mandos Client which is visible on the screen.
72
127
    """
73
 
    
 
128
 
74
129
    def __init__(self, server_proxy_object=None, update_hook=None,
75
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
130
                 delete_hook=None, **kwargs):
76
131
        # Called on update
77
132
        self.update_hook = update_hook
78
133
        # Called on delete
79
134
        self.delete_hook = delete_hook
80
135
        # Mandos Server proxy object
81
136
        self.server_proxy_object = server_proxy_object
82
 
        # Logger
83
 
        self.logger = logger
84
 
        
 
137
 
 
138
        self._update_timer_callback_tag = None
 
139
 
85
140
        # The widget shown normally
86
 
        self._text_widget = urwid.Text(u"")
 
141
        self._text_widget = urwid.Text("")
87
142
        # 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)
 
143
        self._focus_text_widget = urwid.Text("")
 
144
        super(MandosClientWidget, self).__init__(**kwargs)
92
145
        self.update()
93
146
        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
 
    
 
147
 
 
148
        self.match_objects = (
 
149
            self.proxy.connect_to_signal("CheckerCompleted",
 
150
                                         self.checker_completed,
 
151
                                         client_interface,
 
152
                                         byte_arrays=True),
 
153
            self.proxy.connect_to_signal("CheckerStarted",
 
154
                                         self.checker_started,
 
155
                                         client_interface,
 
156
                                         byte_arrays=True),
 
157
            self.proxy.connect_to_signal("GotSecret",
 
158
                                         self.got_secret,
 
159
                                         client_interface,
 
160
                                         byte_arrays=True),
 
161
            self.proxy.connect_to_signal("NeedApproval",
 
162
                                         self.need_approval,
 
163
                                         client_interface,
 
164
                                         byte_arrays=True),
 
165
            self.proxy.connect_to_signal("Rejected",
 
166
                                         self.rejected,
 
167
                                         client_interface,
 
168
                                         byte_arrays=True))
 
169
        log.debug("Created client %s", self.properties["Name"])
 
170
 
 
171
    def using_timer(self, flag):
 
172
        """Call this method with True or False when timer should be
 
173
        activated or deactivated.
 
174
        """
 
175
        if flag and self._update_timer_callback_tag is None:
 
176
            # Will update the shown timer value every second
 
177
            self._update_timer_callback_tag = (
 
178
                GLib.timeout_add(1000,
 
179
                                 glib_safely(self.update_timer)))
 
180
        elif not (flag or self._update_timer_callback_tag is None):
 
181
            GLib.source_remove(self._update_timer_callback_tag)
 
182
            self._update_timer_callback_tag = None
 
183
 
111
184
    def checker_completed(self, exitstatus, condition, command):
112
185
        if exitstatus == 0:
113
 
            self.logger(u'Checker for client %s (command "%s")'
114
 
                        u' was successful'
115
 
                        % (self.properties[u"name"], command))
 
186
            log.debug('Checker for client %s (command "%s")'
 
187
                      " succeeded", self.properties["Name"], command)
 
188
            self.update()
116
189
            return
 
190
        # Checker failed
117
191
        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
 
    
 
192
            log.info('Checker for client %s (command "%s") failed'
 
193
                     " with exit code %d", self.properties["Name"],
 
194
                     command, os.WEXITSTATUS(condition))
 
195
        elif os.WIFSIGNALED(condition):
 
196
            log.info('Checker for client %s (command "%s") was'
 
197
                     " killed by signal %d", self.properties["Name"],
 
198
                     command, os.WTERMSIG(condition))
 
199
        self.update()
 
200
 
135
201
    def checker_started(self, command):
136
 
        self.logger(u'Client %s started checker "%s"'
137
 
                    % (self.properties[u"name"], unicode(command)))
138
 
    
 
202
        """Server signals that a checker started."""
 
203
        log.debug('Client %s started checker "%s"',
 
204
                  self.properties["Name"], command)
 
205
 
139
206
    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
 
    
 
207
        log.info("Client %s received its secret",
 
208
                 self.properties["Name"])
 
209
 
 
210
    def need_approval(self, timeout, default):
 
211
        if not default:
 
212
            message = "Client %s needs approval within %f seconds"
 
213
        else:
 
214
            message = "Client %s will get its secret in %f seconds"
 
215
        log.info(message, self.properties["Name"], timeout/1000)
 
216
 
 
217
    def rejected(self, reason):
 
218
        log.info("Client %s was rejected; reason: %s",
 
219
                 self.properties["Name"], reason)
 
220
 
147
221
    def selectable(self):
148
222
        """Make this a "selectable" widget.
149
223
        This overrides the method from urwid.FlowWidget."""
150
224
        return True
151
 
    
152
 
    def rows(self, (maxcol,), focus=False):
 
225
 
 
226
    def rows(self, maxcolrow, focus=False):
153
227
        """How many rows this widget will occupy might depend on
154
228
        whether we have focus or not.
155
229
        This overrides the method from urwid.FlowWidget"""
156
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
157
 
    
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
231
 
158
232
    def current_widget(self, focus=False):
159
233
        if focus or self.opened:
160
234
            return self._focus_widget
161
235
        return self._widget
162
 
    
 
236
 
163
237
    def update(self):
164
238
        "Called when what is visible on the screen should be updated."
165
239
        # 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
 
        
 
240
        with_standout = {"normal": "standout",
 
241
                         "bold": "bold-standout",
 
242
                         "underline-blink":
 
243
                         "underline-blink-standout",
 
244
                         "bold-underline-blink":
 
245
                         "bold-underline-blink-standout",
 
246
                         }
 
247
 
174
248
        # 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")})
 
249
 
 
250
        # Base part of a client. Name!
 
251
        base = "{name}: ".format(name=self.properties["Name"])
 
252
        if not self.properties["Enabled"]:
 
253
            message = "DISABLED"
 
254
            self.using_timer(False)
 
255
        elif self.properties["ApprovalPending"]:
 
256
            timeout = datetime.timedelta(
 
257
                milliseconds=self.properties["ApprovalDelay"])
 
258
            last_approval_request = isoformat_to_datetime(
 
259
                self.properties["LastApprovalRequest"])
 
260
            if last_approval_request is not None:
 
261
                timer = max(timeout - (datetime.datetime.utcnow()
 
262
                                       - last_approval_request),
 
263
                            datetime.timedelta())
 
264
            else:
 
265
                timer = datetime.timedelta()
 
266
            if self.properties["ApprovedByDefault"]:
 
267
                message = "Approval in {}. (d)eny?"
 
268
            else:
 
269
                message = "Denial in {}. (a)pprove?"
 
270
            message = message.format(str(timer).rsplit(".", 1)[0])
 
271
            self.using_timer(True)
 
272
        elif self.properties["LastCheckerStatus"] != 0:
 
273
            # When checker has failed, show timer until client expires
 
274
            expires = self.properties["Expires"]
 
275
            if expires == "":
 
276
                timer = datetime.timedelta(0)
 
277
            else:
 
278
                expires = (datetime.datetime.strptime
 
279
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
280
                timer = max(expires - datetime.datetime.utcnow(),
 
281
                            datetime.timedelta())
 
282
            message = ("A checker has failed! Time until client"
 
283
                       " gets disabled: {}"
 
284
                       .format(str(timer).rsplit(".", 1)[0]))
 
285
            self.using_timer(True)
 
286
        else:
 
287
            message = "enabled"
 
288
            self.using_timer(False)
 
289
        self._text = "{}{}".format(base, message)
 
290
 
181
291
        if not urwid.supports_unicode():
182
292
            self._text = self._text.encode("ascii", "replace")
183
 
        textlist = [(u"normal", self._text)]
 
293
        textlist = [("normal", self._text)]
184
294
        self._text_widget.set_text(textlist)
185
295
        self._focus_text_widget.set_text([(with_standout[text[0]],
186
296
                                           text[1])
193
303
        # Run update hook, if any
194
304
        if self.update_hook is not None:
195
305
            self.update_hook()
196
 
    
197
 
    def delete(self):
 
306
 
 
307
    def update_timer(self):
 
308
        """called by GLib. Will indefinitely loop until
 
309
        GLib.source_remove() on tag is called
 
310
        """
 
311
        self.update()
 
312
        return True             # Keep calling this
 
313
 
 
314
    def delete(self, **kwargs):
 
315
        if self._update_timer_callback_tag is not None:
 
316
            GLib.source_remove(self._update_timer_callback_tag)
 
317
            self._update_timer_callback_tag = None
 
318
        for match in self.match_objects:
 
319
            match.remove()
 
320
        self.match_objects = ()
198
321
        if self.delete_hook is not None:
199
322
            self.delete_hook(self)
200
 
    
201
 
    def render(self, (maxcol,), focus=False):
 
323
        return super(MandosClientWidget, self).delete(**kwargs)
 
324
 
 
325
    def render(self, maxcolrow, focus=False):
202
326
        """Render differently if we have focus.
203
327
        This overrides the method from urwid.FlowWidget"""
204
 
        return self.current_widget(focus).render((maxcol,),
 
328
        return self.current_widget(focus).render(maxcolrow,
205
329
                                                 focus=focus)
206
 
    
207
 
    def keypress(self, (maxcol,), key):
 
330
 
 
331
    def keypress(self, maxcolrow, key):
208
332
        """Handle keys.
209
333
        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":
 
334
        if key == "+":
 
335
            self.proxy.Set(client_interface, "Enabled",
 
336
                           dbus.Boolean(True), ignore_reply=True,
 
337
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
338
        elif key == "-":
 
339
            self.proxy.Set(client_interface, "Enabled", False,
 
340
                           ignore_reply=True,
 
341
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
342
        elif key == "a":
 
343
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
344
                               dbus_interface=client_interface,
 
345
                               ignore_reply=True)
 
346
        elif key == "d":
 
347
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
348
                               dbus_interface=client_interface,
 
349
                               ignore_reply=True)
 
350
        elif key == "R" or key == "_" or key == "ctrl k":
215
351
            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()
 
352
                                                  .object_path,
 
353
                                                  ignore_reply=True)
 
354
        elif key == "s":
 
355
            self.proxy.Set(client_interface, "CheckerRunning",
 
356
                           dbus.Boolean(True), ignore_reply=True,
 
357
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
358
        elif key == "S":
 
359
            self.proxy.Set(client_interface, "CheckerRunning",
 
360
                           dbus.Boolean(False), ignore_reply=True,
 
361
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
362
        elif key == "C":
 
363
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
364
                                 ignore_reply=True)
223
365
        # xxx
224
 
#         elif key == u"p" or key == "=":
 
366
#         elif key == "p" or key == "=":
225
367
#             self.proxy.pause()
226
 
#         elif key == u"u" or key == ":":
 
368
#         elif key == "u" or key == ":":
227
369
#             self.proxy.unpause()
228
 
#         elif key == u"RET":
 
370
#         elif key == "RET":
229
371
#             self.open()
230
372
        else:
231
373
            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.
 
374
 
 
375
    def properties_changed(self, interface, properties, invalidated):
 
376
        """Call self.update() if any properties changed.
236
377
        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:
 
378
        old_values = {key: self.properties.get(key)
 
379
                      for key in properties.keys()}
 
380
        super(MandosClientWidget, self).properties_changed(
 
381
            interface, properties, invalidated)
 
382
        if any(old_values[key] != self.properties.get(key)
 
383
               for key in old_values):
242
384
            self.update()
243
385
 
244
386
 
 
387
def glib_safely(func, retval=True):
 
388
    def safe_func(*args, **kwargs):
 
389
        try:
 
390
            return func(*args, **kwargs)
 
391
        except Exception:
 
392
            log.exception("")
 
393
            return retval
 
394
    return safe_func
 
395
 
 
396
 
245
397
class ConstrainedListBox(urwid.ListBox):
246
398
    """Like a normal urwid.ListBox, but will consume all "up" or
247
399
    "down" key presses, thus not allowing any containing widgets to
248
400
    use them as an excuse to shift focus away from this widget.
249
401
    """
250
 
    def keypress(self, (maxcol, maxrow), key):
251
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
252
 
        if ret in (u"up", u"down"):
 
402
    def keypress(self, *args, **kwargs):
 
403
        ret = (super(ConstrainedListBox, self)
 
404
               .keypress(*args, **kwargs))
 
405
        if ret in ("up", "down"):
253
406
            return
254
407
        return ret
255
408
 
256
409
 
257
 
class UserInterface(object):
 
410
class UserInterface:
258
411
    """This is the entire user interface - the whole screen
259
412
    with boxes, lists of client widgets, etc.
260
413
    """
261
414
    def __init__(self, max_log_length=1000):
262
415
        DBusGMainLoop(set_as_default=True)
263
 
        
 
416
 
264
417
        self.screen = urwid.curses_display.Screen()
265
 
        
 
418
 
266
419
        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")),
 
420
                ("normal",
 
421
                 "default", "default", None),
 
422
                ("bold",
 
423
                 "bold", "default", "bold"),
 
424
                ("underline-blink",
 
425
                 "underline,blink", "default", "underline,blink"),
 
426
                ("standout",
 
427
                 "standout", "default", "standout"),
 
428
                ("bold-underline-blink",
 
429
                 "bold,underline,blink", "default",
 
430
                 "bold,underline,blink"),
 
431
                ("bold-standout",
 
432
                 "bold,standout", "default", "bold,standout"),
 
433
                ("underline-blink-standout",
 
434
                 "underline,blink,standout", "default",
 
435
                 "underline,blink,standout"),
 
436
                ("bold-underline-blink-standout",
 
437
                 "bold,underline,blink,standout", "default",
 
438
                 "bold,underline,blink,standout"),
284
439
                ))
285
 
        
 
440
 
286
441
        if urwid.supports_unicode():
287
 
            self.divider = u"─" # \u2500
288
 
            #self.divider = u"━" # \u2501
 
442
            self.divider = "─"  # \u2500
289
443
        else:
290
 
            #self.divider = u"-" # \u002d
291
 
            self.divider = u"_" # \u005f
292
 
        
 
444
            self.divider = "_"  # \u005f
 
445
 
293
446
        self.screen.start()
294
 
        
 
447
 
295
448
        self.size = self.screen.get_cols_rows()
296
 
        
 
449
 
297
450
        self.clients = urwid.SimpleListWalker([])
298
451
        self.clients_dict = {}
299
 
        
 
452
 
300
453
        # We will add Text widgets to this list
301
 
        self.log = []
 
454
        self.log = urwid.SimpleListWalker([])
302
455
        self.max_log_length = max_log_length
303
 
        
 
456
 
304
457
        # We keep a reference to the log widget so we can remove it
305
458
        # from the ListWalker without it getting destroyed
306
459
        self.logbox = ConstrainedListBox(self.log)
307
 
        
 
460
 
308
461
        # This keeps track of whether self.uilist currently has
309
462
        # self.logbox in it or not
310
463
        self.log_visible = True
311
 
        self.log_wrap = u"any"
312
 
        
 
464
        self.log_wrap = "any"
 
465
 
 
466
        self.loghandler = UILogHandler(self)
 
467
 
313
468
        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
 
    
 
469
        self.add_log_line(("bold",
 
470
                           "Mandos Monitor version " + version))
 
471
        self.add_log_line(("bold", "q: Quit  ?: Help"))
 
472
 
 
473
        self.busname = domain + ".Mandos"
 
474
        self.main_loop = GLib.MainLoop()
 
475
 
 
476
    def client_not_found(self, key_id, address):
 
477
        log.info("Client with address %s and key ID %s could"
 
478
                 " not be found", address, key_id)
 
479
 
369
480
    def rebuild(self):
370
481
        """This rebuilds the User Interface.
371
482
        Call this when the widget layout needs to change"""
372
483
        self.uilist = []
373
 
        #self.uilist.append(urwid.ListBox(self.clients))
374
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
375
 
                                       #header=urwid.Divider(),
 
484
        # self.uilist.append(urwid.ListBox(self.clients))
 
485
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
486
                                                          clients),
 
487
                                       # header=urwid.Divider(),
376
488
                                       header=None,
377
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
489
                                       footer=urwid.Divider(
 
490
                                           div_char=self.divider)))
378
491
        if self.log_visible:
379
492
            self.uilist.append(self.logbox)
380
 
            pass
381
493
        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."""
 
494
 
 
495
    def add_log_line(self, markup):
389
496
        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")
 
497
        if self.max_log_length:
 
498
            if len(self.log) > self.max_log_length:
 
499
                del self.log[0:(len(self.log) - self.max_log_length)]
 
500
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
501
                              coming_from="above")
395
502
        self.refresh()
396
 
    
 
503
 
397
504
    def toggle_log_display(self):
398
505
        """Toggle visibility of the log buffer."""
399
506
        self.log_visible = not self.log_visible
400
507
        self.rebuild()
401
 
        self.log_message(u"Log visibility changed to: "
402
 
                         + unicode(self.log_visible))
403
 
    
 
508
        log.debug("Log visibility changed to: %s", self.log_visible)
 
509
 
404
510
    def change_log_display(self):
405
511
        """Change type of log display.
406
512
        Currently, this toggles wrapping of text lines."""
407
 
        if self.log_wrap == u"clip":
408
 
            self.log_wrap = u"any"
 
513
        if self.log_wrap == "clip":
 
514
            self.log_wrap = "any"
409
515
        else:
410
 
            self.log_wrap = u"clip"
 
516
            self.log_wrap = "clip"
411
517
        for textwidget in self.log:
412
518
            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
 
519
        log.debug("Wrap mode: %s", self.log_wrap)
 
520
 
 
521
    def find_and_remove_client(self, path, interfaces):
 
522
        """Find a client by its object path and remove it.
 
523
 
 
524
        This is connected to the InterfacesRemoved signal from the
419
525
        Mandos server object."""
 
526
        if client_interface not in interfaces:
 
527
            # Not a Mandos client object; ignore
 
528
            return
420
529
        try:
421
530
            client = self.clients_dict[path]
422
531
        except KeyError:
423
532
            # not found?
424
 
            return
425
 
        self.remove_client(client, path)
426
 
    
427
 
    def add_new_client(self, path, properties):
 
533
            log.warning("Unknown client %s removed", path)
 
534
            return
 
535
        client.delete()
 
536
 
 
537
    def add_new_client(self, path, ifs_and_props):
 
538
        """Find a client by its object path and remove it.
 
539
 
 
540
        This is connected to the InterfacesAdded signal from the
 
541
        Mandos server object.
 
542
        """
 
543
        if client_interface not in ifs_and_props:
 
544
            # Not a Mandos client object; ignore
 
545
            return
428
546
        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),
 
547
        self.add_client(MandosClientWidget(
 
548
            server_proxy_object=self.mandos_serv,
 
549
            proxy_object=client_proxy_object,
 
550
            update_hook=self.refresh,
 
551
            delete_hook=self.remove_client,
 
552
            properties=dict(ifs_and_props[client_interface])),
438
553
                        path=path)
439
 
    
 
554
 
440
555
    def add_client(self, client, path=None):
441
556
        self.clients.append(client)
442
557
        if path is None:
443
558
            path = client.proxy.object_path
444
559
        self.clients_dict[path] = client
445
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
560
        self.clients.sort(key=lambda c: c.properties["Name"])
446
561
        self.refresh()
447
 
    
 
562
 
448
563
    def remove_client(self, client, path=None):
449
564
        self.clients.remove(client)
450
565
        if path is None:
451
566
            path = client.proxy.object_path
452
567
        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
568
        self.refresh()
459
 
    
 
569
 
460
570
    def refresh(self):
461
571
        """Redraw the screen"""
462
572
        canvas = self.topwidget.render(self.size, focus=True)
463
573
        self.screen.draw_screen(self.size, canvas)
464
 
    
 
574
 
465
575
    def run(self):
466
576
        """Start the main loop and exit when it's done."""
 
577
        log.addHandler(self.loghandler)
 
578
        self.orig_log_propagate = log.propagate
 
579
        log.propagate = False
 
580
        self.orig_log_level = log.level
 
581
        log.setLevel("INFO")
 
582
        self.bus = dbus.SystemBus()
 
583
        mandos_dbus_objc = self.bus.get_object(
 
584
            self.busname, "/", follow_name_owner_changes=True)
 
585
        self.mandos_serv = dbus.Interface(
 
586
            mandos_dbus_objc, dbus_interface=server_interface)
 
587
        try:
 
588
            mandos_clients = (self.mandos_serv
 
589
                              .GetAllClientsWithProperties())
 
590
            if not mandos_clients:
 
591
                log.warning("Note: Server has no clients.")
 
592
        except dbus.exceptions.DBusException:
 
593
            log.warning("Note: No Mandos server running.")
 
594
            mandos_clients = dbus.Dictionary()
 
595
 
 
596
        (self.mandos_serv
 
597
         .connect_to_signal("InterfacesRemoved",
 
598
                            self.find_and_remove_client,
 
599
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
600
                            byte_arrays=True))
 
601
        (self.mandos_serv
 
602
         .connect_to_signal("InterfacesAdded",
 
603
                            self.add_new_client,
 
604
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
605
                            byte_arrays=True))
 
606
        (self.mandos_serv
 
607
         .connect_to_signal("ClientNotFound",
 
608
                            self.client_not_found,
 
609
                            dbus_interface=server_interface,
 
610
                            byte_arrays=True))
 
611
        for path, client in mandos_clients.items():
 
612
            client_proxy_object = self.bus.get_object(self.busname,
 
613
                                                      path)
 
614
            self.add_client(MandosClientWidget(
 
615
                server_proxy_object=self.mandos_serv,
 
616
                proxy_object=client_proxy_object,
 
617
                properties=client,
 
618
                update_hook=self.refresh,
 
619
                delete_hook=self.remove_client),
 
620
                            path=path)
 
621
 
467
622
        self.refresh()
468
 
        self._input_callback_tag = (gobject.io_add_watch
469
 
                                    (sys.stdin.fileno(),
470
 
                                     gobject.IO_IN,
471
 
                                     self.process_input))
 
623
        self._input_callback_tag = (
 
624
            GLib.io_add_watch(
 
625
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
626
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
627
                glib_safely(self.process_input)))
472
628
        self.main_loop.run()
473
629
        # Main loop has finished, we should close everything now
474
 
        gobject.source_remove(self._input_callback_tag)
475
 
        self.screen.stop()
476
 
    
 
630
        GLib.source_remove(self._input_callback_tag)
 
631
        with warnings.catch_warnings():
 
632
            warnings.simplefilter("ignore", BytesWarning)
 
633
            self.screen.stop()
 
634
 
477
635
    def stop(self):
478
636
        self.main_loop.quit()
479
 
    
 
637
        log.removeHandler(self.loghandler)
 
638
        log.propagate = self.orig_log_propagate
 
639
 
480
640
    def process_input(self, source, condition):
481
641
        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
 
                         }
 
642
        translations = {"ctrl n": "down",       # Emacs
 
643
                        "ctrl p": "up",         # Emacs
 
644
                        "ctrl v": "page down",  # Emacs
 
645
                        "meta v": "page up",    # Emacs
 
646
                        " ": "page down",       # less
 
647
                        "f": "page down",       # less
 
648
                        "b": "page up",         # less
 
649
                        "j": "down",            # vi
 
650
                        "k": "up",              # vi
 
651
                        }
492
652
        for key in keys:
493
653
            try:
494
654
                key = translations[key]
495
655
            except KeyError:    # :-)
496
656
                pass
497
 
            
498
 
            if key == u"q" or key == u"Q":
 
657
 
 
658
            if key == "q" or key == "Q":
499
659
                self.stop()
500
660
                break
501
 
            elif key == u"window resize":
 
661
            elif key == "window resize":
502
662
                self.size = self.screen.get_cols_rows()
503
663
                self.refresh()
504
 
            elif key == u"\f":  # Ctrl-L
 
664
            elif key == "ctrl l":
 
665
                self.screen.clear()
505
666
                self.refresh()
506
 
            elif key == u"l" or key == u"D":
 
667
            elif key == "l" or key == "D":
507
668
                self.toggle_log_display()
508
669
                self.refresh()
509
 
            elif key == u"w" or key == u"i":
 
670
            elif key == "w" or key == "i":
510
671
                self.change_log_display()
511
672
                self.refresh()
512
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
673
            elif key == "?" or key == "f1" or key == "esc":
513
674
                if not self.log_visible:
514
675
                    self.log_visible = True
515
676
                    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"))))
 
677
                self.add_log_line(("bold",
 
678
                                   "  ".join(("q: Quit",
 
679
                                              "?: Help",
 
680
                                              "l: Log window toggle",
 
681
                                              "TAB: Switch window",
 
682
                                              "w: Wrap (log lines)",
 
683
                                              "v: Toggle verbose log",
 
684
                                   ))))
 
685
                self.add_log_line(("bold",
 
686
                                   "  ".join(("Clients:",
 
687
                                              "+: Enable",
 
688
                                              "-: Disable",
 
689
                                              "R: Remove",
 
690
                                              "s: Start new checker",
 
691
                                              "S: Stop checker",
 
692
                                              "C: Checker OK",
 
693
                                              "a: Approve",
 
694
                                              "d: Deny",
 
695
                                   ))))
532
696
                self.refresh()
533
 
            elif key == u"tab":
 
697
            elif key == "tab":
534
698
                if self.topwidget.get_focus() is self.logbox:
535
699
                    self.topwidget.set_focus(0)
536
700
                else:
537
701
                    self.topwidget.set_focus(self.logbox)
538
702
                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
 
703
            elif key == "v":
 
704
                if log.level < logging.INFO:
 
705
                    log.setLevel(logging.INFO)
 
706
                    log.info("Verbose mode: Off")
 
707
                else:
 
708
                    log.setLevel(logging.NOTSET)
 
709
                    log.info("Verbose mode: On")
 
710
            # elif (key == "end" or key == "meta >" or key == "G"
 
711
            #       or key == ">"):
 
712
            #     pass            # xxx end-of-buffer
 
713
            # elif (key == "home" or key == "meta <" or key == "g"
 
714
            #       or key == "<"):
 
715
            #     pass            # xxx beginning-of-buffer
 
716
            # elif key == "ctrl e" or key == "$":
 
717
            #     pass            # xxx move-end-of-line
 
718
            # elif key == "ctrl a" or key == "^":
 
719
            #     pass            # xxx move-beginning-of-line
 
720
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
721
            #     pass            # xxx left
 
722
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
723
            #     pass            # xxx right
 
724
            # elif key == "a":
 
725
            #     pass            # scroll up log
 
726
            # elif key == "z":
 
727
            #     pass            # scroll down log
557
728
            elif self.topwidget.selectable():
558
729
                self.topwidget.keypress(self.size, key)
559
730
                self.refresh()
560
731
        return True
561
732
 
 
733
 
 
734
class UILogHandler(logging.Handler):
 
735
    def __init__(self, ui, *args, **kwargs):
 
736
        self.ui = ui
 
737
        super(UILogHandler, self).__init__(*args, **kwargs)
 
738
        self.setFormatter(
 
739
            logging.Formatter("%(asctime)s: %(message)s"))
 
740
    def emit(self, record):
 
741
        msg = self.format(record)
 
742
        if record.levelno > logging.INFO:
 
743
            msg = ("bold", msg)
 
744
        self.ui.add_log_line(msg)
 
745
 
 
746
 
562
747
ui = UserInterface()
563
748
try:
564
749
    ui.run()
565
 
except:
566
 
    ui.screen.stop()
 
750
except KeyboardInterrupt:
 
751
    with warnings.catch_warnings():
 
752
        warnings.filterwarnings("ignore", "", BytesWarning)
 
753
        ui.screen.stop()
 
754
except Exception:
 
755
    with warnings.catch_warnings():
 
756
        warnings.filterwarnings("ignore", "", BytesWarning)
 
757
        ui.screen.stop()
567
758
    raise