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  • Committer: Björn Påhlsson
  • Date: 2010-09-01 13:04:23 UTC
  • mto: (237.7.1 mandos)
  • mto: This revision was merged to the branch mainline in revision 270.
  • Revision ID: belorn@fukt.bsnet.se-20100901130423-bkn4j4vukasa1d27
New graphical boot supported: Plymouth

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1
 
#!/usr/bin/python3 -bb
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
7
import os
36
 
import warnings
 
8
import signal
 
9
 
37
10
import datetime
38
11
 
39
12
import urwid.curses_display
40
13
import urwid
41
14
 
42
15
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
16
import gobject
44
17
 
45
18
import dbus
46
19
 
 
20
import UserList
 
21
 
47
22
import locale
48
23
 
49
 
import logging
50
 
 
51
 
if sys.version_info.major == 2:
52
 
    str = unicode
53
 
 
54
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
55
 
logging.basicConfig(level="NOTSET", # Show all messages
56
 
                    format="%(message)s") # Show basic log messages
57
 
 
58
 
logging.captureWarnings(True)   # Show warnings via the logging system
59
 
 
60
 
locale.setlocale(locale.LC_ALL, '')
61
 
 
62
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
24
locale.setlocale(locale.LC_ALL, u'')
63
25
 
64
26
# Some useful constants
65
 
domain = 'se.recompile'
 
27
domain = 'se.bsnet.fukt'
66
28
server_interface = domain + '.Mandos'
67
29
client_interface = domain + '.Mandos.Client'
68
 
version = "1.8.9"
69
 
 
70
 
try:
71
 
    dbus.OBJECT_MANAGER_IFACE
72
 
except AttributeError:
73
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
74
 
 
75
 
 
76
 
def isoformat_to_datetime(iso):
77
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
78
 
    if not iso:
79
 
        return None
80
 
    d, t = iso.split("T", 1)
81
 
    year, month, day = d.split("-", 2)
82
 
    hour, minute, second = t.split(":", 2)
83
 
    second, fraction = divmod(float(second), 1)
84
 
    return datetime.datetime(int(year),
85
 
                             int(month),
86
 
                             int(day),
87
 
                             int(hour),
88
 
                             int(minute),
89
 
                             int(second),            # Whole seconds
90
 
                             int(fraction*1000000))  # Microseconds
91
 
 
 
30
version = "1.0.14"
 
31
 
 
32
# Always run in monochrome mode
 
33
urwid.curses_display.curses.has_colors = lambda : False
 
34
 
 
35
# Urwid doesn't support blinking, but we want it.  Since we have no
 
36
# use for underline on its own, we make underline also always blink.
 
37
urwid.curses_display.curses.A_UNDERLINE |= (
 
38
    urwid.curses_display.curses.A_BLINK)
92
39
 
93
40
class MandosClientPropertyCache(object):
94
41
    """This wraps a Mandos Client D-Bus proxy object, caches the
95
42
    properties and calls a hook function when any of them are
96
43
    changed.
97
44
    """
98
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
99
 
        self.proxy = proxy_object  # Mandos Client proxy object
100
 
        self.properties = dict() if properties is None else properties
101
 
        self.property_changed_match = (
102
 
            self.proxy.connect_to_signal("PropertiesChanged",
103
 
                                         self.properties_changed,
104
 
                                         dbus.PROPERTIES_IFACE,
105
 
                                         byte_arrays=True))
106
 
 
107
 
        if properties is None:
108
 
            self.properties.update(self.proxy.GetAll(
109
 
                client_interface,
110
 
                dbus_interface=dbus.PROPERTIES_IFACE))
111
 
 
112
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
113
 
 
114
 
    def properties_changed(self, interface, properties, invalidated):
115
 
        """This is called whenever we get a PropertiesChanged signal
116
 
        It updates the changed properties in the "properties" dict.
 
45
    def __init__(self, proxy_object=None, *args, **kwargs):
 
46
        self.proxy = proxy_object # Mandos Client proxy object
 
47
        
 
48
        self.properties = dict()
 
49
        self.proxy.connect_to_signal(u"PropertyChanged",
 
50
                                     self.property_changed,
 
51
                                     client_interface,
 
52
                                     byte_arrays=True)
 
53
 
 
54
        self.properties.update(
 
55
            self.proxy.GetAll(client_interface,
 
56
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
57
        super(MandosClientPropertyCache, self).__init__(
 
58
            proxy_object=proxy_object, *args, **kwargs)
 
59
    
 
60
    def property_changed(self, property=None, value=None):
 
61
        """This is called whenever we get a PropertyChanged signal
 
62
        It updates the changed property in the "properties" dict.
117
63
        """
118
64
        # Update properties dict with new value
119
 
        if interface == client_interface:
120
 
            self.properties.update(properties)
121
 
 
122
 
    def delete(self):
123
 
        self.property_changed_match.remove()
 
65
        self.properties[property] = value
124
66
 
125
67
 
126
68
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
127
69
    """A Mandos Client which is visible on the screen.
128
70
    """
129
 
 
 
71
    
130
72
    def __init__(self, server_proxy_object=None, update_hook=None,
131
 
                 delete_hook=None, **kwargs):
 
73
                 delete_hook=None, logger=None, *args, **kwargs):
132
74
        # Called on update
133
75
        self.update_hook = update_hook
134
76
        # Called on delete
135
77
        self.delete_hook = delete_hook
136
78
        # Mandos Server proxy object
137
79
        self.server_proxy_object = server_proxy_object
138
 
 
139
 
        self._update_timer_callback_tag = None
140
 
 
 
80
        # Logger
 
81
        self.logger = logger
 
82
        
141
83
        # The widget shown normally
142
 
        self._text_widget = urwid.Text("")
 
84
        self._text_widget = urwid.Text(u"")
143
85
        # The widget shown when we have focus
144
 
        self._focus_text_widget = urwid.Text("")
145
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
86
        self._focus_text_widget = urwid.Text(u"")
 
87
        super(MandosClientWidget, self).__init__(
 
88
            update_hook=update_hook, delete_hook=delete_hook,
 
89
            *args, **kwargs)
146
90
        self.update()
147
91
        self.opened = False
148
 
 
149
 
        self.match_objects = (
150
 
            self.proxy.connect_to_signal("CheckerCompleted",
151
 
                                         self.checker_completed,
152
 
                                         client_interface,
153
 
                                         byte_arrays=True),
154
 
            self.proxy.connect_to_signal("CheckerStarted",
155
 
                                         self.checker_started,
156
 
                                         client_interface,
157
 
                                         byte_arrays=True),
158
 
            self.proxy.connect_to_signal("GotSecret",
159
 
                                         self.got_secret,
160
 
                                         client_interface,
161
 
                                         byte_arrays=True),
162
 
            self.proxy.connect_to_signal("NeedApproval",
163
 
                                         self.need_approval,
164
 
                                         client_interface,
165
 
                                         byte_arrays=True),
166
 
            self.proxy.connect_to_signal("Rejected",
167
 
                                         self.rejected,
168
 
                                         client_interface,
169
 
                                         byte_arrays=True))
170
 
        log.debug('Created client %s', self.properties["Name"])
171
 
 
172
 
    def using_timer(self, flag):
173
 
        """Call this method with True or False when timer should be
174
 
        activated or deactivated.
175
 
        """
176
 
        if flag and self._update_timer_callback_tag is None:
177
 
            # Will update the shown timer value every second
178
 
            self._update_timer_callback_tag = (
179
 
                GLib.timeout_add(1000,
180
 
                                 glib_safely(self.update_timer)))
181
 
        elif not (flag or self._update_timer_callback_tag is None):
182
 
            GLib.source_remove(self._update_timer_callback_tag)
183
 
            self._update_timer_callback_tag = None
184
 
 
 
92
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
93
                                     self.checker_completed,
 
94
                                     client_interface,
 
95
                                     byte_arrays=True)
 
96
        self.proxy.connect_to_signal(u"CheckerStarted",
 
97
                                     self.checker_started,
 
98
                                     client_interface,
 
99
                                     byte_arrays=True)
 
100
        self.proxy.connect_to_signal(u"GotSecret",
 
101
                                     self.got_secret,
 
102
                                     client_interface,
 
103
                                     byte_arrays=True)
 
104
        self.proxy.connect_to_signal(u"Rejected",
 
105
                                     self.rejected,
 
106
                                     client_interface,
 
107
                                     byte_arrays=True)
 
108
    
185
109
    def checker_completed(self, exitstatus, condition, command):
186
110
        if exitstatus == 0:
187
 
            log.debug('Checker for client %s (command "%s")'
188
 
                      ' succeeded', self.properties["Name"], command)
189
 
            self.update()
 
111
            self.logger(u'Checker for client %s (command "%s")'
 
112
                        u' was successful'
 
113
                        % (self.properties[u"name"], command))
190
114
            return
191
 
        # Checker failed
192
115
        if os.WIFEXITED(condition):
193
 
            log.info('Checker for client %s (command "%s") failed'
194
 
                     ' with exit code %d', self.properties["Name"],
195
 
                     command, os.WEXITSTATUS(condition))
196
 
        elif os.WIFSIGNALED(condition):
197
 
            log.info('Checker for client %s (command "%s") was'
198
 
                     ' killed by signal %d', self.properties["Name"],
199
 
                     command, os.WTERMSIG(condition))
200
 
        self.update()
201
 
 
 
116
            self.logger(u'Checker for client %s (command "%s")'
 
117
                        u' failed with exit code %s'
 
118
                        % (self.properties[u"name"], command,
 
119
                           os.WEXITSTATUS(condition)))
 
120
            return
 
121
        if os.WIFSIGNALED(condition):
 
122
            self.logger(u'Checker for client %s (command "%s")'
 
123
                        u' was killed by signal %s'
 
124
                        % (self.properties[u"name"], command,
 
125
                           os.WTERMSIG(condition)))
 
126
            return
 
127
        if os.WCOREDUMP(condition):
 
128
            self.logger(u'Checker for client %s (command "%s")'
 
129
                        u' dumped core'
 
130
                        % (self.properties[u"name"], command))
 
131
        self.logger(u'Checker for client %s completed mysteriously')
 
132
    
202
133
    def checker_started(self, command):
203
 
        """Server signals that a checker started."""
204
 
        log.debug('Client %s started checker "%s"',
205
 
                  self.properties["Name"], command)
206
 
 
 
134
        self.logger(u'Client %s started checker "%s"'
 
135
                    % (self.properties[u"name"], unicode(command)))
 
136
    
207
137
    def got_secret(self):
208
 
        log.info("Client %s received its secret",
209
 
                 self.properties["Name"])
210
 
 
211
 
    def need_approval(self, timeout, default):
212
 
        if not default:
213
 
            message = "Client %s needs approval within %f seconds"
214
 
        else:
215
 
            message = "Client %s will get its secret in %f seconds"
216
 
        log.info(message, self.properties["Name"], timeout/1000)
217
 
 
218
 
    def rejected(self, reason):
219
 
        log.info("Client %s was rejected; reason: %s",
220
 
                 self.properties["Name"], reason)
221
 
 
 
138
        self.logger(u'Client %s received its secret'
 
139
                    % self.properties[u"name"])
 
140
    
 
141
    def rejected(self):
 
142
        self.logger(u'Client %s was rejected'
 
143
                    % self.properties[u"name"])
 
144
    
222
145
    def selectable(self):
223
146
        """Make this a "selectable" widget.
224
147
        This overrides the method from urwid.FlowWidget."""
225
148
        return True
226
 
 
227
 
    def rows(self, maxcolrow, focus=False):
 
149
    
 
150
    def rows(self, (maxcol,), focus=False):
228
151
        """How many rows this widget will occupy might depend on
229
152
        whether we have focus or not.
230
153
        This overrides the method from urwid.FlowWidget"""
231
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
232
 
 
 
154
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
155
    
233
156
    def current_widget(self, focus=False):
234
157
        if focus or self.opened:
235
158
            return self._focus_widget
236
159
        return self._widget
237
 
 
 
160
    
238
161
    def update(self):
239
162
        "Called when what is visible on the screen should be updated."
240
163
        # How to add standout mode to a style
241
 
        with_standout = {"normal": "standout",
242
 
                         "bold": "bold-standout",
243
 
                         "underline-blink":
244
 
                         "underline-blink-standout",
245
 
                         "bold-underline-blink":
246
 
                         "bold-underline-blink-standout",
247
 
                         }
248
 
 
 
164
        with_standout = { u"normal": u"standout",
 
165
                          u"bold": u"bold-standout",
 
166
                          u"underline-blink":
 
167
                              u"underline-blink-standout",
 
168
                          u"bold-underline-blink":
 
169
                              u"bold-underline-blink-standout",
 
170
                          }
 
171
        
249
172
        # Rebuild focus and non-focus widgets using current properties
250
 
 
251
 
        # Base part of a client. Name!
252
 
        base = '{name}: '.format(name=self.properties["Name"])
253
 
        if not self.properties["Enabled"]:
254
 
            message = "DISABLED"
255
 
            self.using_timer(False)
256
 
        elif self.properties["ApprovalPending"]:
257
 
            timeout = datetime.timedelta(
258
 
                milliseconds=self.properties["ApprovalDelay"])
259
 
            last_approval_request = isoformat_to_datetime(
260
 
                self.properties["LastApprovalRequest"])
261
 
            if last_approval_request is not None:
262
 
                timer = max(timeout - (datetime.datetime.utcnow()
263
 
                                       - last_approval_request),
264
 
                            datetime.timedelta())
265
 
            else:
266
 
                timer = datetime.timedelta()
267
 
            if self.properties["ApprovedByDefault"]:
268
 
                message = "Approval in {}. (d)eny?"
269
 
            else:
270
 
                message = "Denial in {}. (a)pprove?"
271
 
            message = message.format(str(timer).rsplit(".", 1)[0])
272
 
            self.using_timer(True)
273
 
        elif self.properties["LastCheckerStatus"] != 0:
274
 
            # When checker has failed, show timer until client expires
275
 
            expires = self.properties["Expires"]
276
 
            if expires == "":
277
 
                timer = datetime.timedelta(0)
278
 
            else:
279
 
                expires = (datetime.datetime.strptime
280
 
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
281
 
                timer = max(expires - datetime.datetime.utcnow(),
282
 
                            datetime.timedelta())
283
 
            message = ('A checker has failed! Time until client'
284
 
                       ' gets disabled: {}'
285
 
                       .format(str(timer).rsplit(".", 1)[0]))
286
 
            self.using_timer(True)
287
 
        else:
288
 
            message = "enabled"
289
 
            self.using_timer(False)
290
 
        self._text = "{}{}".format(base, message)
291
 
 
 
173
        self._text = (u'%(name)s: %(enabled)s'
 
174
                      % { u"name": self.properties[u"name"],
 
175
                          u"enabled":
 
176
                              (u"enabled"
 
177
                               if self.properties[u"enabled"]
 
178
                               else u"DISABLED")})
292
179
        if not urwid.supports_unicode():
293
180
            self._text = self._text.encode("ascii", "replace")
294
 
        textlist = [("normal", self._text)]
 
181
        textlist = [(u"normal", self._text)]
295
182
        self._text_widget.set_text(textlist)
296
183
        self._focus_text_widget.set_text([(with_standout[text[0]],
297
184
                                           text[1])
304
191
        # Run update hook, if any
305
192
        if self.update_hook is not None:
306
193
            self.update_hook()
307
 
 
308
 
    def update_timer(self):
309
 
        """called by GLib. Will indefinitely loop until
310
 
        GLib.source_remove() on tag is called
311
 
        """
312
 
        self.update()
313
 
        return True             # Keep calling this
314
 
 
315
 
    def delete(self, **kwargs):
316
 
        if self._update_timer_callback_tag is not None:
317
 
            GLib.source_remove(self._update_timer_callback_tag)
318
 
            self._update_timer_callback_tag = None
319
 
        for match in self.match_objects:
320
 
            match.remove()
321
 
        self.match_objects = ()
 
194
    
 
195
    def delete(self):
322
196
        if self.delete_hook is not None:
323
197
            self.delete_hook(self)
324
 
        return super(MandosClientWidget, self).delete(**kwargs)
325
 
 
326
 
    def render(self, maxcolrow, focus=False):
 
198
    
 
199
    def render(self, (maxcol,), focus=False):
327
200
        """Render differently if we have focus.
328
201
        This overrides the method from urwid.FlowWidget"""
329
 
        return self.current_widget(focus).render(maxcolrow,
 
202
        return self.current_widget(focus).render((maxcol,),
330
203
                                                 focus=focus)
331
 
 
332
 
    def keypress(self, maxcolrow, key):
 
204
    
 
205
    def keypress(self, (maxcol,), key):
333
206
        """Handle keys.
334
207
        This overrides the method from urwid.FlowWidget"""
335
 
        if key == "+":
336
 
            self.proxy.Set(client_interface, "Enabled",
337
 
                           dbus.Boolean(True), ignore_reply=True,
338
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
339
 
        elif key == "-":
340
 
            self.proxy.Set(client_interface, "Enabled", False,
341
 
                           ignore_reply=True,
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
343
 
        elif key == "a":
344
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
345
 
                               dbus_interface=client_interface,
346
 
                               ignore_reply=True)
347
 
        elif key == "d":
348
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
349
 
                               dbus_interface=client_interface,
350
 
                               ignore_reply=True)
351
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
208
        if key == u"e" or key == u"+":
 
209
            self.proxy.Enable()
 
210
        elif key == u"d" or key == u"-":
 
211
            self.proxy.Disable()
 
212
        elif key == u"r" or key == u"_" or key == u"ctrl k":
352
213
            self.server_proxy_object.RemoveClient(self.proxy
353
 
                                                  .object_path,
354
 
                                                  ignore_reply=True)
355
 
        elif key == "s":
356
 
            self.proxy.Set(client_interface, "CheckerRunning",
357
 
                           dbus.Boolean(True), ignore_reply=True,
358
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
359
 
        elif key == "S":
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
361
 
                           dbus.Boolean(False), ignore_reply=True,
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
363
 
        elif key == "C":
364
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
365
 
                                 ignore_reply=True)
 
214
                                                  .object_path)
 
215
        elif key == u"s":
 
216
            self.proxy.StartChecker()
 
217
        elif key == u"S":
 
218
            self.proxy.StopChecker()
 
219
        elif key == u"C":
 
220
            self.proxy.CheckedOK()
366
221
        # xxx
367
 
#         elif key == "p" or key == "=":
 
222
#         elif key == u"p" or key == "=":
368
223
#             self.proxy.pause()
369
 
#         elif key == "u" or key == ":":
 
224
#         elif key == u"u" or key == ":":
370
225
#             self.proxy.unpause()
371
 
#         elif key == "RET":
 
226
#         elif key == u"RET":
372
227
#             self.open()
373
228
        else:
374
229
            return key
375
 
 
376
 
    def properties_changed(self, interface, properties, invalidated):
377
 
        """Call self.update() if any properties changed.
 
230
    
 
231
    def property_changed(self, property=None, value=None,
 
232
                         *args, **kwargs):
 
233
        """Call self.update() if old value is not new value.
378
234
        This overrides the method from MandosClientPropertyCache"""
379
 
        old_values = {key: self.properties.get(key)
380
 
                      for key in properties.keys()}
381
 
        super(MandosClientWidget, self).properties_changed(
382
 
            interface, properties, invalidated)
383
 
        if any(old_values[key] != self.properties.get(key)
384
 
               for key in old_values):
 
235
        property_name = unicode(property)
 
236
        old_value = self.properties.get(property_name)
 
237
        super(MandosClientWidget, self).property_changed(
 
238
            property=property, value=value, *args, **kwargs)
 
239
        if self.properties.get(property_name) != old_value:
385
240
            self.update()
386
241
 
387
242
 
388
 
def glib_safely(func, retval=True):
389
 
    def safe_func(*args, **kwargs):
390
 
        try:
391
 
            return func(*args, **kwargs)
392
 
        except Exception:
393
 
            log.exception("")
394
 
            return retval
395
 
    return safe_func
396
 
 
397
 
 
398
243
class ConstrainedListBox(urwid.ListBox):
399
244
    """Like a normal urwid.ListBox, but will consume all "up" or
400
245
    "down" key presses, thus not allowing any containing widgets to
401
246
    use them as an excuse to shift focus away from this widget.
402
247
    """
403
 
    def keypress(self, *args, **kwargs):
404
 
        ret = (super(ConstrainedListBox, self)
405
 
               .keypress(*args, **kwargs))
406
 
        if ret in ("up", "down"):
 
248
    def keypress(self, (maxcol, maxrow), key):
 
249
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
250
        if ret in (u"up", u"down"):
407
251
            return
408
252
        return ret
409
253
 
414
258
    """
415
259
    def __init__(self, max_log_length=1000):
416
260
        DBusGMainLoop(set_as_default=True)
417
 
 
 
261
        
418
262
        self.screen = urwid.curses_display.Screen()
419
 
 
 
263
        
420
264
        self.screen.register_palette((
421
 
                ("normal",
422
 
                 "default", "default", None),
423
 
                ("bold",
424
 
                 "bold", "default", "bold"),
425
 
                ("underline-blink",
426
 
                 "underline,blink", "default", "underline,blink"),
427
 
                ("standout",
428
 
                 "standout", "default", "standout"),
429
 
                ("bold-underline-blink",
430
 
                 "bold,underline,blink", "default",
431
 
                 "bold,underline,blink"),
432
 
                ("bold-standout",
433
 
                 "bold,standout", "default", "bold,standout"),
434
 
                ("underline-blink-standout",
435
 
                 "underline,blink,standout", "default",
436
 
                 "underline,blink,standout"),
437
 
                ("bold-underline-blink-standout",
438
 
                 "bold,underline,blink,standout", "default",
439
 
                 "bold,underline,blink,standout"),
 
265
                (u"normal",
 
266
                 u"default", u"default", None),
 
267
                (u"bold",
 
268
                 u"default", u"default", u"bold"),
 
269
                (u"underline-blink",
 
270
                 u"default", u"default", u"underline"),
 
271
                (u"standout",
 
272
                 u"default", u"default", u"standout"),
 
273
                (u"bold-underline-blink",
 
274
                 u"default", u"default", (u"bold", u"underline")),
 
275
                (u"bold-standout",
 
276
                 u"default", u"default", (u"bold", u"standout")),
 
277
                (u"underline-blink-standout",
 
278
                 u"default", u"default", (u"underline", u"standout")),
 
279
                (u"bold-underline-blink-standout",
 
280
                 u"default", u"default", (u"bold", u"underline",
 
281
                                          u"standout")),
440
282
                ))
441
 
 
 
283
        
442
284
        if urwid.supports_unicode():
443
 
            self.divider = "─"  # \u2500
 
285
            self.divider = u"─" # \u2500
 
286
            #self.divider = u"━" # \u2501
444
287
        else:
445
 
            self.divider = "_"  # \u005f
446
 
 
 
288
            #self.divider = u"-" # \u002d
 
289
            self.divider = u"_" # \u005f
 
290
        
447
291
        self.screen.start()
448
 
 
 
292
        
449
293
        self.size = self.screen.get_cols_rows()
450
 
 
 
294
        
451
295
        self.clients = urwid.SimpleListWalker([])
452
296
        self.clients_dict = {}
453
 
 
 
297
        
454
298
        # We will add Text widgets to this list
455
 
        self.log = urwid.SimpleListWalker([])
 
299
        self.log = []
456
300
        self.max_log_length = max_log_length
457
 
 
 
301
        
458
302
        # We keep a reference to the log widget so we can remove it
459
303
        # from the ListWalker without it getting destroyed
460
304
        self.logbox = ConstrainedListBox(self.log)
461
 
 
 
305
        
462
306
        # This keeps track of whether self.uilist currently has
463
307
        # self.logbox in it or not
464
308
        self.log_visible = True
465
 
        self.log_wrap = "any"
466
 
 
467
 
        self.loghandler = UILogHandler(self)
468
 
 
 
309
        self.log_wrap = u"any"
 
310
        
469
311
        self.rebuild()
470
 
        self.add_log_line(("bold",
471
 
                           "Mandos Monitor version " + version))
472
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
473
 
 
 
312
        self.log_message_raw((u"bold",
 
313
                              u"Mandos Monitor version " + version))
 
314
        self.log_message_raw((u"bold",
 
315
                              u"q: Quit  ?: Help"))
 
316
        
474
317
        self.busname = domain + '.Mandos'
475
 
        self.main_loop = GLib.MainLoop()
476
 
 
477
 
    def client_not_found(self, key_id, address):
478
 
        log.info("Client with address %s and key ID %s could"
479
 
                 " not be found", address, key_id)
480
 
 
 
318
        self.main_loop = gobject.MainLoop()
 
319
        self.bus = dbus.SystemBus()
 
320
        mandos_dbus_objc = self.bus.get_object(
 
321
            self.busname, u"/", follow_name_owner_changes=True)
 
322
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
323
                                          dbus_interface
 
324
                                          = server_interface)
 
325
        try:
 
326
            mandos_clients = (self.mandos_serv
 
327
                              .GetAllClientsWithProperties())
 
328
        except dbus.exceptions.DBusException:
 
329
            mandos_clients = dbus.Dictionary()
 
330
        
 
331
        (self.mandos_serv
 
332
         .connect_to_signal(u"ClientRemoved",
 
333
                            self.find_and_remove_client,
 
334
                            dbus_interface=server_interface,
 
335
                            byte_arrays=True))
 
336
        (self.mandos_serv
 
337
         .connect_to_signal(u"ClientAdded",
 
338
                            self.add_new_client,
 
339
                            dbus_interface=server_interface,
 
340
                            byte_arrays=True))
 
341
        (self.mandos_serv
 
342
         .connect_to_signal(u"ClientNotFound",
 
343
                            self.client_not_found,
 
344
                            dbus_interface=server_interface,
 
345
                            byte_arrays=True))
 
346
        for path, client in mandos_clients.iteritems():
 
347
            client_proxy_object = self.bus.get_object(self.busname,
 
348
                                                      path)
 
349
            self.add_client(MandosClientWidget(server_proxy_object
 
350
                                               =self.mandos_serv,
 
351
                                               proxy_object
 
352
                                               =client_proxy_object,
 
353
                                               properties=client,
 
354
                                               update_hook
 
355
                                               =self.refresh,
 
356
                                               delete_hook
 
357
                                               =self.remove_client,
 
358
                                               logger
 
359
                                               =self.log_message),
 
360
                            path=path)
 
361
    
 
362
    def client_not_found(self, fingerprint, address):
 
363
        self.log_message((u"Client with address %s and fingerprint %s"
 
364
                          u" could not be found" % (address,
 
365
                                                    fingerprint)))
 
366
    
481
367
    def rebuild(self):
482
368
        """This rebuilds the User Interface.
483
369
        Call this when the widget layout needs to change"""
484
370
        self.uilist = []
485
 
        # self.uilist.append(urwid.ListBox(self.clients))
486
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
487
 
                                                          clients),
488
 
                                       # header=urwid.Divider(),
 
371
        #self.uilist.append(urwid.ListBox(self.clients))
 
372
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
373
                                       #header=urwid.Divider(),
489
374
                                       header=None,
490
 
                                       footer=urwid.Divider(
491
 
                                           div_char=self.divider)))
 
375
                                       footer=urwid.Divider(div_char=self.divider)))
492
376
        if self.log_visible:
493
377
            self.uilist.append(self.logbox)
 
378
            pass
494
379
        self.topwidget = urwid.Pile(self.uilist)
495
 
 
496
 
    def add_log_line(self, markup):
 
380
    
 
381
    def log_message(self, message):
 
382
        timestamp = datetime.datetime.now().isoformat()
 
383
        self.log_message_raw(timestamp + u": " + message)
 
384
    
 
385
    def log_message_raw(self, markup):
 
386
        """Add a log message to the log buffer."""
497
387
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
498
 
        if self.max_log_length:
499
 
            if len(self.log) > self.max_log_length:
500
 
                del self.log[0:(len(self.log) - self.max_log_length)]
501
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
502
 
                              coming_from="above")
 
388
        if (self.max_log_length
 
389
            and len(self.log) > self.max_log_length):
 
390
            del self.log[0:len(self.log)-self.max_log_length-1]
 
391
        self.logbox.set_focus(len(self.logbox.body.contents),
 
392
                              coming_from=u"above")
503
393
        self.refresh()
504
 
 
 
394
    
505
395
    def toggle_log_display(self):
506
396
        """Toggle visibility of the log buffer."""
507
397
        self.log_visible = not self.log_visible
508
398
        self.rebuild()
509
 
        log.debug("Log visibility changed to: %s", self.log_visible)
510
 
 
 
399
        self.log_message(u"Log visibility changed to: "
 
400
                         + unicode(self.log_visible))
 
401
    
511
402
    def change_log_display(self):
512
403
        """Change type of log display.
513
404
        Currently, this toggles wrapping of text lines."""
514
 
        if self.log_wrap == "clip":
515
 
            self.log_wrap = "any"
 
405
        if self.log_wrap == u"clip":
 
406
            self.log_wrap = u"any"
516
407
        else:
517
 
            self.log_wrap = "clip"
 
408
            self.log_wrap = u"clip"
518
409
        for textwidget in self.log:
519
410
            textwidget.set_wrap_mode(self.log_wrap)
520
 
        log.debug("Wrap mode: %s", self.log_wrap)
521
 
 
522
 
    def find_and_remove_client(self, path, interfaces):
523
 
        """Find a client by its object path and remove it.
524
 
 
525
 
        This is connected to the InterfacesRemoved signal from the
 
411
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
412
    
 
413
    def find_and_remove_client(self, path, name):
 
414
        """Find an client from its object path and remove it.
 
415
        
 
416
        This is connected to the ClientRemoved signal from the
526
417
        Mandos server object."""
527
 
        if client_interface not in interfaces:
528
 
            # Not a Mandos client object; ignore
529
 
            return
530
418
        try:
531
419
            client = self.clients_dict[path]
532
420
        except KeyError:
533
421
            # not found?
534
 
            log.warning("Unknown client %s removed", path)
535
 
            return
536
 
        client.delete()
537
 
 
538
 
    def add_new_client(self, path, ifs_and_props):
539
 
        """Find a client by its object path and remove it.
540
 
 
541
 
        This is connected to the InterfacesAdded signal from the
542
 
        Mandos server object.
543
 
        """
544
 
        if client_interface not in ifs_and_props:
545
 
            # Not a Mandos client object; ignore
546
 
            return
 
422
            return
 
423
        self.remove_client(client, path)
 
424
    
 
425
    def add_new_client(self, path):
547
426
        client_proxy_object = self.bus.get_object(self.busname, path)
548
 
        self.add_client(MandosClientWidget(
549
 
            server_proxy_object=self.mandos_serv,
550
 
            proxy_object=client_proxy_object,
551
 
            update_hook=self.refresh,
552
 
            delete_hook=self.remove_client,
553
 
            properties=dict(ifs_and_props[client_interface])),
 
427
        self.add_client(MandosClientWidget(server_proxy_object
 
428
                                           =self.mandos_serv,
 
429
                                           proxy_object
 
430
                                           =client_proxy_object,
 
431
                                           update_hook
 
432
                                           =self.refresh,
 
433
                                           delete_hook
 
434
                                           =self.remove_client,
 
435
                                           logger
 
436
                                           =self.log_message),
554
437
                        path=path)
555
 
 
 
438
    
556
439
    def add_client(self, client, path=None):
557
440
        self.clients.append(client)
558
441
        if path is None:
559
442
            path = client.proxy.object_path
560
443
        self.clients_dict[path] = client
561
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
444
        self.clients.sort(None, lambda c: c.properties[u"name"])
562
445
        self.refresh()
563
 
 
 
446
    
564
447
    def remove_client(self, client, path=None):
565
448
        self.clients.remove(client)
566
449
        if path is None:
567
450
            path = client.proxy.object_path
568
451
        del self.clients_dict[path]
 
452
        if not self.clients_dict:
 
453
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
454
            # is completely emptied, we need to recreate it.
 
455
            self.clients = urwid.SimpleListWalker([])
 
456
            self.rebuild()
569
457
        self.refresh()
570
 
 
 
458
    
571
459
    def refresh(self):
572
460
        """Redraw the screen"""
573
461
        canvas = self.topwidget.render(self.size, focus=True)
574
462
        self.screen.draw_screen(self.size, canvas)
575
 
 
 
463
    
576
464
    def run(self):
577
465
        """Start the main loop and exit when it's done."""
578
 
        log.addHandler(self.loghandler)
579
 
        self.orig_log_propagate = log.propagate
580
 
        log.propagate = False
581
 
        self.orig_log_level = log.level
582
 
        log.setLevel("INFO")
583
 
        self.bus = dbus.SystemBus()
584
 
        mandos_dbus_objc = self.bus.get_object(
585
 
            self.busname, "/", follow_name_owner_changes=True)
586
 
        self.mandos_serv = dbus.Interface(
587
 
            mandos_dbus_objc, dbus_interface=server_interface)
588
 
        try:
589
 
            mandos_clients = (self.mandos_serv
590
 
                              .GetAllClientsWithProperties())
591
 
            if not mandos_clients:
592
 
                log.warning("Note: Server has no clients.")
593
 
        except dbus.exceptions.DBusException:
594
 
            log.warning("Note: No Mandos server running.")
595
 
            mandos_clients = dbus.Dictionary()
596
 
 
597
 
        (self.mandos_serv
598
 
         .connect_to_signal("InterfacesRemoved",
599
 
                            self.find_and_remove_client,
600
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
601
 
                            byte_arrays=True))
602
 
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesAdded",
604
 
                            self.add_new_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
606
 
                            byte_arrays=True))
607
 
        (self.mandos_serv
608
 
         .connect_to_signal("ClientNotFound",
609
 
                            self.client_not_found,
610
 
                            dbus_interface=server_interface,
611
 
                            byte_arrays=True))
612
 
        for path, client in mandos_clients.items():
613
 
            client_proxy_object = self.bus.get_object(self.busname,
614
 
                                                      path)
615
 
            self.add_client(MandosClientWidget(
616
 
                server_proxy_object=self.mandos_serv,
617
 
                proxy_object=client_proxy_object,
618
 
                properties=client,
619
 
                update_hook=self.refresh,
620
 
                delete_hook=self.remove_client),
621
 
                            path=path)
622
 
 
623
466
        self.refresh()
624
 
        self._input_callback_tag = (
625
 
            GLib.io_add_watch(
626
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
627
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
628
 
                glib_safely(self.process_input)))
 
467
        self._input_callback_tag = (gobject.io_add_watch
 
468
                                    (sys.stdin.fileno(),
 
469
                                     gobject.IO_IN,
 
470
                                     self.process_input))
629
471
        self.main_loop.run()
630
472
        # Main loop has finished, we should close everything now
631
 
        GLib.source_remove(self._input_callback_tag)
632
 
        with warnings.catch_warnings():
633
 
            warnings.simplefilter("ignore", BytesWarning)
634
 
            self.screen.stop()
635
 
 
 
473
        gobject.source_remove(self._input_callback_tag)
 
474
        self.screen.stop()
 
475
    
636
476
    def stop(self):
637
477
        self.main_loop.quit()
638
 
        log.removeHandler(self.loghandler)
639
 
        log.propagate = self.orig_log_propagate
640
 
 
 
478
    
641
479
    def process_input(self, source, condition):
642
480
        keys = self.screen.get_input()
643
 
        translations = {"ctrl n": "down",       # Emacs
644
 
                        "ctrl p": "up",         # Emacs
645
 
                        "ctrl v": "page down",  # Emacs
646
 
                        "meta v": "page up",    # Emacs
647
 
                        " ": "page down",       # less
648
 
                        "f": "page down",       # less
649
 
                        "b": "page up",         # less
650
 
                        "j": "down",            # vi
651
 
                        "k": "up",              # vi
652
 
                        }
 
481
        translations = { u"ctrl n": u"down",      # Emacs
 
482
                         u"ctrl p": u"up",        # Emacs
 
483
                         u"ctrl v": u"page down", # Emacs
 
484
                         u"meta v": u"page up",   # Emacs
 
485
                         u" ": u"page down",      # less
 
486
                         u"f": u"page down",      # less
 
487
                         u"b": u"page up",        # less
 
488
                         u"j": u"down",           # vi
 
489
                         u"k": u"up",             # vi
 
490
                         }
653
491
        for key in keys:
654
492
            try:
655
493
                key = translations[key]
656
494
            except KeyError:    # :-)
657
495
                pass
658
 
 
659
 
            if key == "q" or key == "Q":
 
496
            
 
497
            if key == u"q" or key == u"Q":
660
498
                self.stop()
661
499
                break
662
 
            elif key == "window resize":
 
500
            elif key == u"window resize":
663
501
                self.size = self.screen.get_cols_rows()
664
502
                self.refresh()
665
 
            elif key == "ctrl l":
666
 
                self.screen.clear()
 
503
            elif key == u"\f":  # Ctrl-L
667
504
                self.refresh()
668
 
            elif key == "l" or key == "D":
 
505
            elif key == u"l" or key == u"D":
669
506
                self.toggle_log_display()
670
507
                self.refresh()
671
 
            elif key == "w" or key == "i":
 
508
            elif key == u"w" or key == u"i":
672
509
                self.change_log_display()
673
510
                self.refresh()
674
 
            elif key == "?" or key == "f1" or key == "esc":
 
511
            elif key == u"?" or key == u"f1" or key == u"esc":
675
512
                if not self.log_visible:
676
513
                    self.log_visible = True
677
514
                    self.rebuild()
678
 
                self.add_log_line(("bold",
679
 
                                   "  ".join(("q: Quit",
680
 
                                              "?: Help",
681
 
                                              "l: Log window toggle",
682
 
                                              "TAB: Switch window",
683
 
                                              "w: Wrap (log lines)",
684
 
                                              "v: Toggle verbose log",
685
 
                                   ))))
686
 
                self.add_log_line(("bold",
687
 
                                   "  ".join(("Clients:",
688
 
                                              "+: Enable",
689
 
                                              "-: Disable",
690
 
                                              "R: Remove",
691
 
                                              "s: Start new checker",
692
 
                                              "S: Stop checker",
693
 
                                              "C: Checker OK",
694
 
                                              "a: Approve",
695
 
                                              "d: Deny",
696
 
                                   ))))
 
515
                self.log_message_raw((u"bold",
 
516
                                      u"  ".
 
517
                                      join((u"q: Quit",
 
518
                                            u"?: Help",
 
519
                                            u"l: Log window toggle",
 
520
                                            u"TAB: Switch window",
 
521
                                            u"w: Wrap (log)"))))
 
522
                self.log_message_raw((u"bold",
 
523
                                      u"  "
 
524
                                      .join((u"Clients:",
 
525
                                             u"e: Enable",
 
526
                                             u"d: Disable",
 
527
                                             u"r: Remove",
 
528
                                             u"s: Start new checker",
 
529
                                             u"S: Stop checker",
 
530
                                             u"C: Checker OK"))))
697
531
                self.refresh()
698
 
            elif key == "tab":
 
532
            elif key == u"tab":
699
533
                if self.topwidget.get_focus() is self.logbox:
700
534
                    self.topwidget.set_focus(0)
701
535
                else:
702
536
                    self.topwidget.set_focus(self.logbox)
703
537
                self.refresh()
704
 
            elif key == "v":
705
 
                if log.level < logging.INFO:
706
 
                    log.setLevel(logging.INFO)
707
 
                    log.info("Verbose mode: Off")
708
 
                else:
709
 
                    log.setLevel(logging.NOTSET)
710
 
                    log.info("Verbose mode: On")
711
 
            # elif (key == "end" or key == "meta >" or key == "G"
712
 
            #       or key == ">"):
713
 
            #     pass            # xxx end-of-buffer
714
 
            # elif (key == "home" or key == "meta <" or key == "g"
715
 
            #       or key == "<"):
716
 
            #     pass            # xxx beginning-of-buffer
717
 
            # elif key == "ctrl e" or key == "$":
718
 
            #     pass            # xxx move-end-of-line
719
 
            # elif key == "ctrl a" or key == "^":
720
 
            #     pass            # xxx move-beginning-of-line
721
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
722
 
            #     pass            # xxx left
723
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
724
 
            #     pass            # xxx right
725
 
            # elif key == "a":
726
 
            #     pass            # scroll up log
727
 
            # elif key == "z":
728
 
            #     pass            # scroll down log
 
538
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
539
            #      or key == u">"):
 
540
            #    pass            # xxx end-of-buffer
 
541
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
542
            #      or key == u"<"):
 
543
            #    pass            # xxx beginning-of-buffer
 
544
            #elif key == u"ctrl e" or key == u"$":
 
545
            #    pass            # xxx move-end-of-line
 
546
            #elif key == u"ctrl a" or key == u"^":
 
547
            #    pass            # xxx move-beginning-of-line
 
548
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
549
            #    pass            # xxx left
 
550
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
551
            #    pass            # xxx right
 
552
            #elif key == u"a":
 
553
            #    pass            # scroll up log
 
554
            #elif key == u"z":
 
555
            #    pass            # scroll down log
729
556
            elif self.topwidget.selectable():
730
557
                self.topwidget.keypress(self.size, key)
731
558
                self.refresh()
732
559
        return True
733
560
 
734
 
 
735
 
class UILogHandler(logging.Handler):
736
 
    def __init__(self, ui, *args, **kwargs):
737
 
        self.ui = ui
738
 
        super(UILogHandler, self).__init__(*args, **kwargs)
739
 
        self.setFormatter(
740
 
            logging.Formatter("%(asctime)s: %(message)s"))
741
 
    def emit(self, record):
742
 
        msg = self.format(record)
743
 
        if record.levelno > logging.INFO:
744
 
            msg = ("bold", msg)
745
 
        self.ui.add_log_line(msg)
746
 
 
747
 
 
748
561
ui = UserInterface()
749
562
try:
750
563
    ui.run()
751
 
except KeyboardInterrupt:
752
 
    with warnings.catch_warnings():
753
 
        warnings.filterwarnings("ignore", "", BytesWarning)
754
 
        ui.screen.stop()
755
 
except Exception:
756
 
    with warnings.catch_warnings():
757
 
        warnings.filterwarnings("ignore", "", BytesWarning)
758
 
        ui.screen.stop()
 
564
except Exception, e:
 
565
    ui.log_message(unicode(e))
 
566
    ui.screen.stop()
759
567
    raise