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  • Committer: Teddy Hogeborn
  • Date: 2012-06-16 23:25:46 UTC
  • mto: (301.1.1 release) (237.7.272 trunk)
  • mto: This revision was merged to the branch mainline in revision 302.
  • Revision ID: teddy@recompile.se-20120616232546-dcrkmnhd4yhq6mvd
* plugins.d/mandos-client (mandos_context): Moved to inside "main()".
                                            All users changed.
  (add_server): Take new "current_server" argument; all callers
                changed.
  (init_gpgme, pgp_packet_decrypt, init_gnutls_global,
  init_gnutls_session, start_mandos_communication,
  avahi_loop_with_timeout): Take new "mc" argument"; all callers
                            changed.
  (resolve_callback, browse_callback): Handle void pointer userdata as
                                       "mc", a pointer to
                                       mandos_context.  All callers
                                       changed.
  (main): New "mc" variable.

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mandos-monitor
1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
# 
4
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
 
5
# 
 
6
# Copyright © 2009-2012 Teddy Hogeborn
 
7
# Copyright © 2009-2012 Björn Påhlsson
 
8
# 
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
# 
21
19
# 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
 
#
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
24
23
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
24
# 
 
25
 
26
26
from __future__ import (division, absolute_import, print_function,
27
27
                        unicode_literals)
28
28
 
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
29
from future_builtins import *
33
30
 
34
31
import sys
35
 
import logging
36
32
import os
37
 
import warnings
 
33
import signal
 
34
 
38
35
import datetime
39
 
import locale
40
36
 
41
37
import urwid.curses_display
42
38
import urwid
43
39
 
44
40
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
41
import gobject
46
42
 
47
43
import dbus
48
44
 
49
 
if sys.version_info.major == 2:
50
 
    __metaclass__ = type
51
 
    str = unicode
52
 
    input = raw_input
53
 
 
54
 
# Show warnings by default
55
 
if not sys.warnoptions:
56
 
    warnings.simplefilter("default")
57
 
 
58
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
59
 
logging.basicConfig(level="NOTSET", # Show all messages
60
 
                    format="%(message)s") # Show basic log messages
61
 
 
62
 
logging.captureWarnings(True)   # Show warnings via the logging system
63
 
 
64
 
locale.setlocale(locale.LC_ALL, "")
65
 
 
66
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
67
 
logging.getLogger("urwid").setLevel(logging.INFO)
 
45
import UserList
 
46
 
 
47
import locale
 
48
 
 
49
locale.setlocale(locale.LC_ALL, '')
 
50
 
 
51
import logging
 
52
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
68
53
 
69
54
# Some useful constants
70
 
domain = "se.recompile"
71
 
server_interface = domain + ".Mandos"
72
 
client_interface = domain + ".Mandos.Client"
73
 
version = "1.8.17"
74
 
 
75
 
try:
76
 
    dbus.OBJECT_MANAGER_IFACE
77
 
except AttributeError:
78
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
79
 
 
 
55
domain = 'se.recompile'
 
56
server_interface = domain + '.Mandos'
 
57
client_interface = domain + '.Mandos.Client'
 
58
version = "1.5.5"
 
59
 
 
60
# Always run in monochrome mode
 
61
urwid.curses_display.curses.has_colors = lambda : False
 
62
 
 
63
# Urwid doesn't support blinking, but we want it.  Since we have no
 
64
# use for underline on its own, we make underline also always blink.
 
65
urwid.curses_display.curses.A_UNDERLINE |= (
 
66
    urwid.curses_display.curses.A_BLINK)
80
67
 
81
68
def isoformat_to_datetime(iso):
82
69
    "Parse an ISO 8601 date string to a datetime.datetime()"
91
78
                             int(day),
92
79
                             int(hour),
93
80
                             int(minute),
94
 
                             int(second),            # Whole seconds
95
 
                             int(fraction*1000000))  # Microseconds
96
 
 
97
 
 
98
 
class MandosClientPropertyCache:
 
81
                             int(second),           # Whole seconds
 
82
                             int(fraction*1000000)) # Microseconds
 
83
 
 
84
class MandosClientPropertyCache(object):
99
85
    """This wraps a Mandos Client D-Bus proxy object, caches the
100
86
    properties and calls a hook function when any of them are
101
87
    changed.
102
88
    """
103
89
    def __init__(self, proxy_object=None, properties=None, **kwargs):
104
 
        self.proxy = proxy_object  # Mandos Client proxy object
 
90
        self.proxy = proxy_object # Mandos Client proxy object
105
91
        self.properties = dict() if properties is None else properties
106
92
        self.property_changed_match = (
107
 
            self.proxy.connect_to_signal("PropertiesChanged",
108
 
                                         self.properties_changed,
109
 
                                         dbus.PROPERTIES_IFACE,
 
93
            self.proxy.connect_to_signal("PropertyChanged",
 
94
                                         self._property_changed,
 
95
                                         client_interface,
110
96
                                         byte_arrays=True))
111
 
 
 
97
        
112
98
        if properties is None:
113
 
            self.properties.update(self.proxy.GetAll(
114
 
                client_interface,
115
 
                dbus_interface=dbus.PROPERTIES_IFACE))
116
 
 
 
99
            self.properties.update(
 
100
                self.proxy.GetAll(client_interface,
 
101
                                  dbus_interface
 
102
                                  = dbus.PROPERTIES_IFACE))
 
103
        
117
104
        super(MandosClientPropertyCache, self).__init__(**kwargs)
118
 
 
119
 
    def properties_changed(self, interface, properties, invalidated):
120
 
        """This is called whenever we get a PropertiesChanged signal
121
 
        It updates the changed properties in the "properties" dict.
 
105
    
 
106
    def _property_changed(self, property, value):
 
107
        """Helper which takes positional arguments"""
 
108
        return self.property_changed(property=property, value=value)
 
109
    
 
110
    def property_changed(self, property=None, value=None):
 
111
        """This is called whenever we get a PropertyChanged signal
 
112
        It updates the changed property in the "properties" dict.
122
113
        """
123
114
        # Update properties dict with new value
124
 
        if interface == client_interface:
125
 
            self.properties.update(properties)
126
 
 
 
115
        self.properties[property] = value
 
116
    
127
117
    def delete(self):
128
118
        self.property_changed_match.remove()
129
119
 
131
121
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
132
122
    """A Mandos Client which is visible on the screen.
133
123
    """
134
 
 
 
124
    
135
125
    def __init__(self, server_proxy_object=None, update_hook=None,
136
 
                 delete_hook=None, **kwargs):
 
126
                 delete_hook=None, logger=None, **kwargs):
137
127
        # Called on update
138
128
        self.update_hook = update_hook
139
129
        # Called on delete
140
130
        self.delete_hook = delete_hook
141
131
        # Mandos Server proxy object
142
132
        self.server_proxy_object = server_proxy_object
143
 
 
 
133
        # Logger
 
134
        self.logger = logger
 
135
        
144
136
        self._update_timer_callback_tag = None
145
 
 
 
137
        
146
138
        # The widget shown normally
147
139
        self._text_widget = urwid.Text("")
148
140
        # The widget shown when we have focus
150
142
        super(MandosClientWidget, self).__init__(**kwargs)
151
143
        self.update()
152
144
        self.opened = False
153
 
 
 
145
        
154
146
        self.match_objects = (
155
147
            self.proxy.connect_to_signal("CheckerCompleted",
156
148
                                         self.checker_completed,
172
164
                                         self.rejected,
173
165
                                         client_interface,
174
166
                                         byte_arrays=True))
175
 
        log.debug("Created client %s", self.properties["Name"])
176
 
 
 
167
        #self.logger('Created client {0}'
 
168
        #            .format(self.properties["Name"]))
 
169
    
177
170
    def using_timer(self, flag):
178
171
        """Call this method with True or False when timer should be
179
172
        activated or deactivated.
180
173
        """
181
174
        if flag and self._update_timer_callback_tag is None:
182
175
            # Will update the shown timer value every second
183
 
            self._update_timer_callback_tag = (
184
 
                GLib.timeout_add(1000,
185
 
                                 glib_safely(self.update_timer)))
 
176
            self._update_timer_callback_tag = (gobject.timeout_add
 
177
                                               (1000,
 
178
                                                self.update_timer))
186
179
        elif not (flag or self._update_timer_callback_tag is None):
187
 
            GLib.source_remove(self._update_timer_callback_tag)
 
180
            gobject.source_remove(self._update_timer_callback_tag)
188
181
            self._update_timer_callback_tag = None
189
 
 
 
182
    
190
183
    def checker_completed(self, exitstatus, condition, command):
191
184
        if exitstatus == 0:
192
 
            log.debug('Checker for client %s (command "%s")'
193
 
                      " succeeded", self.properties["Name"], command)
194
185
            self.update()
195
186
            return
196
187
        # Checker failed
197
188
        if os.WIFEXITED(condition):
198
 
            log.info('Checker for client %s (command "%s") failed'
199
 
                     " with exit code %d", self.properties["Name"],
200
 
                     command, os.WEXITSTATUS(condition))
 
189
            self.logger('Checker for client {0} (command "{1}")'
 
190
                        ' failed with exit code {2}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
201
193
        elif os.WIFSIGNALED(condition):
202
 
            log.info('Checker for client %s (command "%s") was'
203
 
                     " killed by signal %d", self.properties["Name"],
204
 
                     command, os.WTERMSIG(condition))
 
194
            self.logger('Checker for client {0} (command "{1}") was'
 
195
                        ' killed by signal {2}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
 
198
        elif os.WCOREDUMP(condition):
 
199
            self.logger('Checker for client {0} (command "{1}")'
 
200
                        ' dumped core'
 
201
                        .format(self.properties["Name"], command))
 
202
        else:
 
203
            self.logger('Checker for client {0} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
205
206
        self.update()
206
 
 
 
207
    
207
208
    def checker_started(self, command):
208
 
        """Server signals that a checker started."""
209
 
        log.debug('Client %s started checker "%s"',
210
 
                  self.properties["Name"], command)
211
 
 
 
209
        """Server signals that a checker started. This could be useful
 
210
           to log in the future. """
 
211
        #self.logger('Client {0} started checker "{1}"'
 
212
        #            .format(self.properties["Name"],
 
213
        #                    unicode(command)))
 
214
        pass
 
215
    
212
216
    def got_secret(self):
213
 
        log.info("Client %s received its secret",
214
 
                 self.properties["Name"])
215
 
 
 
217
        self.logger('Client {0} received its secret'
 
218
                    .format(self.properties["Name"]))
 
219
    
216
220
    def need_approval(self, timeout, default):
217
221
        if not default:
218
 
            message = "Client %s needs approval within %f seconds"
 
222
            message = 'Client {0} needs approval within {1} seconds'
219
223
        else:
220
 
            message = "Client %s will get its secret in %f seconds"
221
 
        log.info(message, self.properties["Name"], timeout/1000)
222
 
 
 
224
            message = 'Client {0} will get its secret in {1} seconds'
 
225
        self.logger(message.format(self.properties["Name"],
 
226
                                   timeout/1000))
 
227
    
223
228
    def rejected(self, reason):
224
 
        log.info("Client %s was rejected; reason: %s",
225
 
                 self.properties["Name"], reason)
226
 
 
 
229
        self.logger('Client {0} was rejected; reason: {1}'
 
230
                    .format(self.properties["Name"], reason))
 
231
    
227
232
    def selectable(self):
228
233
        """Make this a "selectable" widget.
229
234
        This overrides the method from urwid.FlowWidget."""
230
235
        return True
231
 
 
 
236
    
232
237
    def rows(self, maxcolrow, focus=False):
233
238
        """How many rows this widget will occupy might depend on
234
239
        whether we have focus or not.
235
240
        This overrides the method from urwid.FlowWidget"""
236
241
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
237
 
 
 
242
    
238
243
    def current_widget(self, focus=False):
239
244
        if focus or self.opened:
240
245
            return self._focus_widget
241
246
        return self._widget
242
 
 
 
247
    
243
248
    def update(self):
244
249
        "Called when what is visible on the screen should be updated."
245
250
        # How to add standout mode to a style
246
 
        with_standout = {"normal": "standout",
247
 
                         "bold": "bold-standout",
248
 
                         "underline-blink":
249
 
                         "underline-blink-standout",
250
 
                         "bold-underline-blink":
251
 
                         "bold-underline-blink-standout",
252
 
                         }
253
 
 
 
251
        with_standout = { "normal": "standout",
 
252
                          "bold": "bold-standout",
 
253
                          "underline-blink":
 
254
                              "underline-blink-standout",
 
255
                          "bold-underline-blink":
 
256
                              "bold-underline-blink-standout",
 
257
                          }
 
258
        
254
259
        # Rebuild focus and non-focus widgets using current properties
255
 
 
 
260
        
256
261
        # Base part of a client. Name!
257
 
        base = "{name}: ".format(name=self.properties["Name"])
 
262
        base = '{name}: '.format(name=self.properties["Name"])
258
263
        if not self.properties["Enabled"]:
259
264
            message = "DISABLED"
260
265
            self.using_timer(False)
261
266
        elif self.properties["ApprovalPending"]:
262
 
            timeout = datetime.timedelta(
263
 
                milliseconds=self.properties["ApprovalDelay"])
 
267
            timeout = datetime.timedelta(milliseconds
 
268
                                         = self.properties
 
269
                                         ["ApprovalDelay"])
264
270
            last_approval_request = isoformat_to_datetime(
265
271
                self.properties["LastApprovalRequest"])
266
272
            if last_approval_request is not None:
270
276
            else:
271
277
                timer = datetime.timedelta()
272
278
            if self.properties["ApprovedByDefault"]:
273
 
                message = "Approval in {}. (d)eny?"
 
279
                message = "Approval in {0}. (d)eny?"
274
280
            else:
275
 
                message = "Denial in {}. (a)pprove?"
276
 
            message = message.format(str(timer).rsplit(".", 1)[0])
 
281
                message = "Denial in {0}. (a)pprove?"
 
282
            message = message.format(unicode(timer).rsplit(".", 1)[0])
277
283
            self.using_timer(True)
278
284
        elif self.properties["LastCheckerStatus"] != 0:
279
285
            # When checker has failed, show timer until client expires
282
288
                timer = datetime.timedelta(0)
283
289
            else:
284
290
                expires = (datetime.datetime.strptime
285
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
291
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
286
292
                timer = max(expires - datetime.datetime.utcnow(),
287
293
                            datetime.timedelta())
288
 
            message = ("A checker has failed! Time until client"
289
 
                       " gets disabled: {}"
290
 
                       .format(str(timer).rsplit(".", 1)[0]))
 
294
            message = ('A checker has failed! Time until client'
 
295
                       ' gets disabled: {0}'
 
296
                       .format(unicode(timer).rsplit(".", 1)[0]))
291
297
            self.using_timer(True)
292
298
        else:
293
299
            message = "enabled"
294
300
            self.using_timer(False)
295
 
        self._text = "{}{}".format(base, message)
296
 
 
 
301
        self._text = "{0}{1}".format(base, message)
 
302
        
297
303
        if not urwid.supports_unicode():
298
304
            self._text = self._text.encode("ascii", "replace")
299
305
        textlist = [("normal", self._text)]
309
315
        # Run update hook, if any
310
316
        if self.update_hook is not None:
311
317
            self.update_hook()
312
 
 
 
318
    
313
319
    def update_timer(self):
314
 
        """called by GLib. Will indefinitely loop until
315
 
        GLib.source_remove() on tag is called
316
 
        """
 
320
        """called by gobject. Will indefinitely loop until
 
321
        gobject.source_remove() on tag is called"""
317
322
        self.update()
318
323
        return True             # Keep calling this
319
 
 
 
324
    
320
325
    def delete(self, **kwargs):
321
326
        if self._update_timer_callback_tag is not None:
322
 
            GLib.source_remove(self._update_timer_callback_tag)
 
327
            gobject.source_remove(self._update_timer_callback_tag)
323
328
            self._update_timer_callback_tag = None
324
329
        for match in self.match_objects:
325
330
            match.remove()
327
332
        if self.delete_hook is not None:
328
333
            self.delete_hook(self)
329
334
        return super(MandosClientWidget, self).delete(**kwargs)
330
 
 
 
335
    
331
336
    def render(self, maxcolrow, focus=False):
332
337
        """Render differently if we have focus.
333
338
        This overrides the method from urwid.FlowWidget"""
334
339
        return self.current_widget(focus).render(maxcolrow,
335
340
                                                 focus=focus)
336
 
 
 
341
    
337
342
    def keypress(self, maxcolrow, key):
338
343
        """Handle keys.
339
344
        This overrides the method from urwid.FlowWidget"""
340
345
        if key == "+":
341
 
            self.proxy.Set(client_interface, "Enabled",
342
 
                           dbus.Boolean(True), ignore_reply=True,
343
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
346
            self.proxy.Enable(dbus_interface = client_interface,
 
347
                              ignore_reply=True)
344
348
        elif key == "-":
345
 
            self.proxy.Set(client_interface, "Enabled", False,
346
 
                           ignore_reply=True,
347
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
349
            self.proxy.Disable(dbus_interface = client_interface,
 
350
                               ignore_reply=True)
348
351
        elif key == "a":
349
352
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
350
 
                               dbus_interface=client_interface,
 
353
                               dbus_interface = client_interface,
351
354
                               ignore_reply=True)
352
355
        elif key == "d":
353
356
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
354
 
                               dbus_interface=client_interface,
 
357
                                  dbus_interface = client_interface,
355
358
                               ignore_reply=True)
356
359
        elif key == "R" or key == "_" or key == "ctrl k":
357
360
            self.server_proxy_object.RemoveClient(self.proxy
358
361
                                                  .object_path,
359
362
                                                  ignore_reply=True)
360
363
        elif key == "s":
361
 
            self.proxy.Set(client_interface, "CheckerRunning",
362
 
                           dbus.Boolean(True), ignore_reply=True,
363
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
364
            self.proxy.StartChecker(dbus_interface = client_interface,
 
365
                                    ignore_reply=True)
364
366
        elif key == "S":
365
 
            self.proxy.Set(client_interface, "CheckerRunning",
366
 
                           dbus.Boolean(False), ignore_reply=True,
367
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
367
            self.proxy.StopChecker(dbus_interface = client_interface,
 
368
                                   ignore_reply=True)
368
369
        elif key == "C":
369
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
370
            self.proxy.CheckedOK(dbus_interface = client_interface,
370
371
                                 ignore_reply=True)
371
372
        # xxx
372
373
#         elif key == "p" or key == "=":
377
378
#             self.open()
378
379
        else:
379
380
            return key
380
 
 
381
 
    def properties_changed(self, interface, properties, invalidated):
382
 
        """Call self.update() if any properties changed.
 
381
    
 
382
    def property_changed(self, property=None, **kwargs):
 
383
        """Call self.update() if old value is not new value.
383
384
        This overrides the method from MandosClientPropertyCache"""
384
 
        old_values = {key: self.properties.get(key)
385
 
                      for key in properties.keys()}
386
 
        super(MandosClientWidget, self).properties_changed(
387
 
            interface, properties, invalidated)
388
 
        if any(old_values[key] != self.properties.get(key)
389
 
               for key in old_values):
 
385
        property_name = unicode(property)
 
386
        old_value = self.properties.get(property_name)
 
387
        super(MandosClientWidget, self).property_changed(
 
388
            property=property, **kwargs)
 
389
        if self.properties.get(property_name) != old_value:
390
390
            self.update()
391
391
 
392
392
 
393
 
def glib_safely(func, retval=True):
394
 
    def safe_func(*args, **kwargs):
395
 
        try:
396
 
            return func(*args, **kwargs)
397
 
        except Exception:
398
 
            log.exception("")
399
 
            return retval
400
 
    return safe_func
401
 
 
402
 
 
403
393
class ConstrainedListBox(urwid.ListBox):
404
394
    """Like a normal urwid.ListBox, but will consume all "up" or
405
395
    "down" key presses, thus not allowing any containing widgets to
406
396
    use them as an excuse to shift focus away from this widget.
407
397
    """
408
398
    def keypress(self, *args, **kwargs):
409
 
        ret = (super(ConstrainedListBox, self)
410
 
               .keypress(*args, **kwargs))
 
399
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
411
400
        if ret in ("up", "down"):
412
401
            return
413
402
        return ret
414
403
 
415
404
 
416
 
class UserInterface:
 
405
class UserInterface(object):
417
406
    """This is the entire user interface - the whole screen
418
407
    with boxes, lists of client widgets, etc.
419
408
    """
420
409
    def __init__(self, max_log_length=1000):
421
410
        DBusGMainLoop(set_as_default=True)
422
 
 
 
411
        
423
412
        self.screen = urwid.curses_display.Screen()
424
 
 
 
413
        
425
414
        self.screen.register_palette((
426
415
                ("normal",
427
416
                 "default", "default", None),
428
417
                ("bold",
429
 
                 "bold", "default", "bold"),
 
418
                 "default", "default", "bold"),
430
419
                ("underline-blink",
431
 
                 "underline,blink", "default", "underline,blink"),
 
420
                 "default", "default", "underline"),
432
421
                ("standout",
433
 
                 "standout", "default", "standout"),
 
422
                 "default", "default", "standout"),
434
423
                ("bold-underline-blink",
435
 
                 "bold,underline,blink", "default",
436
 
                 "bold,underline,blink"),
 
424
                 "default", "default", ("bold", "underline")),
437
425
                ("bold-standout",
438
 
                 "bold,standout", "default", "bold,standout"),
 
426
                 "default", "default", ("bold", "standout")),
439
427
                ("underline-blink-standout",
440
 
                 "underline,blink,standout", "default",
441
 
                 "underline,blink,standout"),
 
428
                 "default", "default", ("underline", "standout")),
442
429
                ("bold-underline-blink-standout",
443
 
                 "bold,underline,blink,standout", "default",
444
 
                 "bold,underline,blink,standout"),
 
430
                 "default", "default", ("bold", "underline",
 
431
                                          "standout")),
445
432
                ))
446
 
 
 
433
        
447
434
        if urwid.supports_unicode():
448
 
            self.divider = "─"  # \u2500
 
435
            self.divider = "─" # \u2500
 
436
            #self.divider = "━" # \u2501
449
437
        else:
450
 
            self.divider = "_"  # \u005f
451
 
 
 
438
            #self.divider = "-" # \u002d
 
439
            self.divider = "_" # \u005f
 
440
        
452
441
        self.screen.start()
453
 
 
 
442
        
454
443
        self.size = self.screen.get_cols_rows()
455
 
 
 
444
        
456
445
        self.clients = urwid.SimpleListWalker([])
457
446
        self.clients_dict = {}
458
 
 
 
447
        
459
448
        # We will add Text widgets to this list
460
 
        self.log = urwid.SimpleListWalker([])
 
449
        self.log = []
461
450
        self.max_log_length = max_log_length
462
 
 
 
451
        
463
452
        # We keep a reference to the log widget so we can remove it
464
453
        # from the ListWalker without it getting destroyed
465
454
        self.logbox = ConstrainedListBox(self.log)
466
 
 
 
455
        
467
456
        # This keeps track of whether self.uilist currently has
468
457
        # self.logbox in it or not
469
458
        self.log_visible = True
470
459
        self.log_wrap = "any"
471
 
 
472
 
        self.loghandler = UILogHandler(self)
473
 
 
 
460
        
474
461
        self.rebuild()
475
 
        self.add_log_line(("bold",
476
 
                           "Mandos Monitor version " + version))
477
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
478
 
 
479
 
        self.busname = domain + ".Mandos"
480
 
        self.main_loop = GLib.MainLoop()
481
 
 
482
 
    def client_not_found(self, key_id, address):
483
 
        log.info("Client with address %s and key ID %s could"
484
 
                 " not be found", address, key_id)
485
 
 
 
462
        self.log_message_raw(("bold",
 
463
                              "Mandos Monitor version " + version))
 
464
        self.log_message_raw(("bold",
 
465
                              "q: Quit  ?: Help"))
 
466
        
 
467
        self.busname = domain + '.Mandos'
 
468
        self.main_loop = gobject.MainLoop()
 
469
    
 
470
    def client_not_found(self, fingerprint, address):
 
471
        self.log_message("Client with address {0} and fingerprint"
 
472
                         " {1} could not be found"
 
473
                         .format(address, fingerprint))
 
474
    
486
475
    def rebuild(self):
487
476
        """This rebuilds the User Interface.
488
477
        Call this when the widget layout needs to change"""
489
478
        self.uilist = []
490
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
479
        #self.uilist.append(urwid.ListBox(self.clients))
491
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
492
481
                                                          clients),
493
 
                                       # header=urwid.Divider(),
 
482
                                       #header=urwid.Divider(),
494
483
                                       header=None,
495
 
                                       footer=urwid.Divider(
496
 
                                           div_char=self.divider)))
 
484
                                       footer=
 
485
                                       urwid.Divider(div_char=
 
486
                                                     self.divider)))
497
487
        if self.log_visible:
498
488
            self.uilist.append(self.logbox)
499
489
        self.topwidget = urwid.Pile(self.uilist)
500
 
 
501
 
    def add_log_line(self, markup):
 
490
    
 
491
    def log_message(self, message):
 
492
        timestamp = datetime.datetime.now().isoformat()
 
493
        self.log_message_raw(timestamp + ": " + message)
 
494
    
 
495
    def log_message_raw(self, markup):
 
496
        """Add a log message to the log buffer."""
502
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
503
 
        if self.max_log_length:
504
 
            if len(self.log) > self.max_log_length:
505
 
                del self.log[0:(len(self.log) - self.max_log_length)]
506
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
 
498
        if (self.max_log_length
 
499
            and len(self.log) > self.max_log_length):
 
500
            del self.log[0:len(self.log)-self.max_log_length-1]
 
501
        self.logbox.set_focus(len(self.logbox.body.contents),
507
502
                              coming_from="above")
508
503
        self.refresh()
509
 
 
 
504
    
510
505
    def toggle_log_display(self):
511
506
        """Toggle visibility of the log buffer."""
512
507
        self.log_visible = not self.log_visible
513
508
        self.rebuild()
514
 
        log.debug("Log visibility changed to: %s", self.log_visible)
515
 
 
 
509
        #self.log_message("Log visibility changed to: "
 
510
        #                 + unicode(self.log_visible))
 
511
    
516
512
    def change_log_display(self):
517
513
        """Change type of log display.
518
514
        Currently, this toggles wrapping of text lines."""
522
518
            self.log_wrap = "clip"
523
519
        for textwidget in self.log:
524
520
            textwidget.set_wrap_mode(self.log_wrap)
525
 
        log.debug("Wrap mode: %s", self.log_wrap)
526
 
 
527
 
    def find_and_remove_client(self, path, interfaces):
 
521
        #self.log_message("Wrap mode: " + self.log_wrap)
 
522
    
 
523
    def find_and_remove_client(self, path, name):
528
524
        """Find a client by its object path and remove it.
529
 
 
530
 
        This is connected to the InterfacesRemoved signal from the
 
525
        
 
526
        This is connected to the ClientRemoved signal from the
531
527
        Mandos server object."""
532
 
        if client_interface not in interfaces:
533
 
            # Not a Mandos client object; ignore
534
 
            return
535
528
        try:
536
529
            client = self.clients_dict[path]
537
530
        except KeyError:
538
531
            # not found?
539
 
            log.warning("Unknown client %s removed", path)
 
532
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
533
                             .format(name, path))
540
534
            return
541
535
        client.delete()
542
 
 
543
 
    def add_new_client(self, path, ifs_and_props):
544
 
        """Find a client by its object path and remove it.
545
 
 
546
 
        This is connected to the InterfacesAdded signal from the
547
 
        Mandos server object.
548
 
        """
549
 
        if client_interface not in ifs_and_props:
550
 
            # Not a Mandos client object; ignore
551
 
            return
 
536
    
 
537
    def add_new_client(self, path):
552
538
        client_proxy_object = self.bus.get_object(self.busname, path)
553
 
        self.add_client(MandosClientWidget(
554
 
            server_proxy_object=self.mandos_serv,
555
 
            proxy_object=client_proxy_object,
556
 
            update_hook=self.refresh,
557
 
            delete_hook=self.remove_client,
558
 
            properties=dict(ifs_and_props[client_interface])),
 
539
        self.add_client(MandosClientWidget(server_proxy_object
 
540
                                           =self.mandos_serv,
 
541
                                           proxy_object
 
542
                                           =client_proxy_object,
 
543
                                           update_hook
 
544
                                           =self.refresh,
 
545
                                           delete_hook
 
546
                                           =self.remove_client,
 
547
                                           logger
 
548
                                           =self.log_message),
559
549
                        path=path)
560
 
 
 
550
    
561
551
    def add_client(self, client, path=None):
562
552
        self.clients.append(client)
563
553
        if path is None:
564
554
            path = client.proxy.object_path
565
555
        self.clients_dict[path] = client
566
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
556
        self.clients.sort(None, lambda c: c.properties["Name"])
567
557
        self.refresh()
568
 
 
 
558
    
569
559
    def remove_client(self, client, path=None):
570
560
        self.clients.remove(client)
571
561
        if path is None:
572
562
            path = client.proxy.object_path
573
563
        del self.clients_dict[path]
 
564
        if not self.clients_dict:
 
565
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
566
            # is completely emptied, we need to recreate it.
 
567
            self.clients = urwid.SimpleListWalker([])
 
568
            self.rebuild()
574
569
        self.refresh()
575
 
 
 
570
    
576
571
    def refresh(self):
577
572
        """Redraw the screen"""
578
573
        canvas = self.topwidget.render(self.size, focus=True)
579
574
        self.screen.draw_screen(self.size, canvas)
580
 
 
 
575
    
581
576
    def run(self):
582
577
        """Start the main loop and exit when it's done."""
583
 
        log.addHandler(self.loghandler)
584
 
        self.orig_log_propagate = log.propagate
585
 
        log.propagate = False
586
 
        self.orig_log_level = log.level
587
 
        log.setLevel("INFO")
588
578
        self.bus = dbus.SystemBus()
589
579
        mandos_dbus_objc = self.bus.get_object(
590
580
            self.busname, "/", follow_name_owner_changes=True)
591
 
        self.mandos_serv = dbus.Interface(
592
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
581
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
582
                                          dbus_interface
 
583
                                          = server_interface)
593
584
        try:
594
585
            mandos_clients = (self.mandos_serv
595
586
                              .GetAllClientsWithProperties())
596
 
            if not mandos_clients:
597
 
                log.warning("Note: Server has no clients.")
598
587
        except dbus.exceptions.DBusException:
599
 
            log.warning("Note: No Mandos server running.")
600
588
            mandos_clients = dbus.Dictionary()
601
 
 
 
589
        
602
590
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesRemoved",
 
591
         .connect_to_signal("ClientRemoved",
604
592
                            self.find_and_remove_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
593
                            dbus_interface=server_interface,
606
594
                            byte_arrays=True))
607
595
        (self.mandos_serv
608
 
         .connect_to_signal("InterfacesAdded",
 
596
         .connect_to_signal("ClientAdded",
609
597
                            self.add_new_client,
610
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
598
                            dbus_interface=server_interface,
611
599
                            byte_arrays=True))
612
600
        (self.mandos_serv
613
601
         .connect_to_signal("ClientNotFound",
614
602
                            self.client_not_found,
615
603
                            dbus_interface=server_interface,
616
604
                            byte_arrays=True))
617
 
        for path, client in mandos_clients.items():
 
605
        for path, client in mandos_clients.iteritems():
618
606
            client_proxy_object = self.bus.get_object(self.busname,
619
607
                                                      path)
620
 
            self.add_client(MandosClientWidget(
621
 
                server_proxy_object=self.mandos_serv,
622
 
                proxy_object=client_proxy_object,
623
 
                properties=client,
624
 
                update_hook=self.refresh,
625
 
                delete_hook=self.remove_client),
 
608
            self.add_client(MandosClientWidget(server_proxy_object
 
609
                                               =self.mandos_serv,
 
610
                                               proxy_object
 
611
                                               =client_proxy_object,
 
612
                                               properties=client,
 
613
                                               update_hook
 
614
                                               =self.refresh,
 
615
                                               delete_hook
 
616
                                               =self.remove_client,
 
617
                                               logger
 
618
                                               =self.log_message),
626
619
                            path=path)
627
 
 
 
620
        
628
621
        self.refresh()
629
 
        self._input_callback_tag = (
630
 
            GLib.io_add_watch(
631
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
632
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
633
 
                glib_safely(self.process_input)))
 
622
        self._input_callback_tag = (gobject.io_add_watch
 
623
                                    (sys.stdin.fileno(),
 
624
                                     gobject.IO_IN,
 
625
                                     self.process_input))
634
626
        self.main_loop.run()
635
627
        # Main loop has finished, we should close everything now
636
 
        GLib.source_remove(self._input_callback_tag)
637
 
        with warnings.catch_warnings():
638
 
            warnings.simplefilter("ignore", BytesWarning)
639
 
            self.screen.stop()
640
 
 
 
628
        gobject.source_remove(self._input_callback_tag)
 
629
        self.screen.stop()
 
630
    
641
631
    def stop(self):
642
632
        self.main_loop.quit()
643
 
        log.removeHandler(self.loghandler)
644
 
        log.propagate = self.orig_log_propagate
645
 
 
 
633
    
646
634
    def process_input(self, source, condition):
647
635
        keys = self.screen.get_input()
648
 
        translations = {"ctrl n": "down",       # Emacs
649
 
                        "ctrl p": "up",         # Emacs
650
 
                        "ctrl v": "page down",  # Emacs
651
 
                        "meta v": "page up",    # Emacs
652
 
                        " ": "page down",       # less
653
 
                        "f": "page down",       # less
654
 
                        "b": "page up",         # less
655
 
                        "j": "down",            # vi
656
 
                        "k": "up",              # vi
657
 
                        }
 
636
        translations = { "ctrl n": "down",      # Emacs
 
637
                         "ctrl p": "up",        # Emacs
 
638
                         "ctrl v": "page down", # Emacs
 
639
                         "meta v": "page up",   # Emacs
 
640
                         " ": "page down",      # less
 
641
                         "f": "page down",      # less
 
642
                         "b": "page up",        # less
 
643
                         "j": "down",           # vi
 
644
                         "k": "up",             # vi
 
645
                         }
658
646
        for key in keys:
659
647
            try:
660
648
                key = translations[key]
661
649
            except KeyError:    # :-)
662
650
                pass
663
 
 
 
651
            
664
652
            if key == "q" or key == "Q":
665
653
                self.stop()
666
654
                break
667
655
            elif key == "window resize":
668
656
                self.size = self.screen.get_cols_rows()
669
657
                self.refresh()
670
 
            elif key == "ctrl l":
671
 
                self.screen.clear()
 
658
            elif key == "\f":  # Ctrl-L
672
659
                self.refresh()
673
660
            elif key == "l" or key == "D":
674
661
                self.toggle_log_display()
680
667
                if not self.log_visible:
681
668
                    self.log_visible = True
682
669
                    self.rebuild()
683
 
                self.add_log_line(("bold",
684
 
                                   "  ".join(("q: Quit",
685
 
                                              "?: Help",
686
 
                                              "l: Log window toggle",
687
 
                                              "TAB: Switch window",
688
 
                                              "w: Wrap (log lines)",
689
 
                                              "v: Toggle verbose log",
690
 
                                   ))))
691
 
                self.add_log_line(("bold",
692
 
                                   "  ".join(("Clients:",
693
 
                                              "+: Enable",
694
 
                                              "-: Disable",
695
 
                                              "R: Remove",
696
 
                                              "s: Start new checker",
697
 
                                              "S: Stop checker",
698
 
                                              "C: Checker OK",
699
 
                                              "a: Approve",
700
 
                                              "d: Deny",
701
 
                                   ))))
 
670
                self.log_message_raw(("bold",
 
671
                                      "  ".
 
672
                                      join(("q: Quit",
 
673
                                            "?: Help",
 
674
                                            "l: Log window toggle",
 
675
                                            "TAB: Switch window",
 
676
                                            "w: Wrap (log)"))))
 
677
                self.log_message_raw(("bold",
 
678
                                      "  "
 
679
                                      .join(("Clients:",
 
680
                                             "+: Enable",
 
681
                                             "-: Disable",
 
682
                                             "R: Remove",
 
683
                                             "s: Start new checker",
 
684
                                             "S: Stop checker",
 
685
                                             "C: Checker OK",
 
686
                                             "a: Approve",
 
687
                                             "d: Deny"))))
702
688
                self.refresh()
703
689
            elif key == "tab":
704
690
                if self.topwidget.get_focus() is self.logbox:
706
692
                else:
707
693
                    self.topwidget.set_focus(self.logbox)
708
694
                self.refresh()
709
 
            elif key == "v":
710
 
                if log.level < logging.INFO:
711
 
                    log.setLevel(logging.INFO)
712
 
                    log.info("Verbose mode: Off")
713
 
                else:
714
 
                    log.setLevel(logging.NOTSET)
715
 
                    log.info("Verbose mode: On")
716
 
            # elif (key == "end" or key == "meta >" or key == "G"
717
 
            #       or key == ">"):
718
 
            #     pass            # xxx end-of-buffer
719
 
            # elif (key == "home" or key == "meta <" or key == "g"
720
 
            #       or key == "<"):
721
 
            #     pass            # xxx beginning-of-buffer
722
 
            # elif key == "ctrl e" or key == "$":
723
 
            #     pass            # xxx move-end-of-line
724
 
            # elif key == "ctrl a" or key == "^":
725
 
            #     pass            # xxx move-beginning-of-line
726
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
727
 
            #     pass            # xxx left
728
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
729
 
            #     pass            # xxx right
730
 
            # elif key == "a":
731
 
            #     pass            # scroll up log
732
 
            # elif key == "z":
733
 
            #     pass            # scroll down log
 
695
            #elif (key == "end" or key == "meta >" or key == "G"
 
696
            #      or key == ">"):
 
697
            #    pass            # xxx end-of-buffer
 
698
            #elif (key == "home" or key == "meta <" or key == "g"
 
699
            #      or key == "<"):
 
700
            #    pass            # xxx beginning-of-buffer
 
701
            #elif key == "ctrl e" or key == "$":
 
702
            #    pass            # xxx move-end-of-line
 
703
            #elif key == "ctrl a" or key == "^":
 
704
            #    pass            # xxx move-beginning-of-line
 
705
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
706
            #    pass            # xxx left
 
707
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
708
            #    pass            # xxx right
 
709
            #elif key == "a":
 
710
            #    pass            # scroll up log
 
711
            #elif key == "z":
 
712
            #    pass            # scroll down log
734
713
            elif self.topwidget.selectable():
735
714
                self.topwidget.keypress(self.size, key)
736
715
                self.refresh()
737
716
        return True
738
717
 
739
 
 
740
 
class UILogHandler(logging.Handler):
741
 
    def __init__(self, ui, *args, **kwargs):
742
 
        self.ui = ui
743
 
        super(UILogHandler, self).__init__(*args, **kwargs)
744
 
        self.setFormatter(
745
 
            logging.Formatter("%(asctime)s: %(message)s"))
746
 
    def emit(self, record):
747
 
        msg = self.format(record)
748
 
        if record.levelno > logging.INFO:
749
 
            msg = ("bold", msg)
750
 
        self.ui.add_log_line(msg)
751
 
 
752
 
 
753
718
ui = UserInterface()
754
719
try:
755
720
    ui.run()
756
721
except KeyboardInterrupt:
757
 
    with warnings.catch_warnings():
758
 
        warnings.filterwarnings("ignore", "", BytesWarning)
759
 
        ui.screen.stop()
760
 
except Exception:
761
 
    with warnings.catch_warnings():
762
 
        warnings.filterwarnings("ignore", "", BytesWarning)
763
 
        ui.screen.stop()
 
722
    ui.screen.stop()
 
723
except Exception, e:
 
724
    ui.log_message(unicode(e))
 
725
    ui.screen.stop()
764
726
    raise