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  • Committer: Teddy Hogeborn
  • Date: 2011-12-31 23:05:34 UTC
  • Revision ID: teddy@recompile.se-20111231230534-o5w0uhwx30gwhmk7
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1
 
#!/usr/bin/python3 -bb
 
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 <http://www.gnu.org/licenses/>.
 
21
24
22
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
23
26
24
 
27
25
from __future__ import (division, absolute_import, print_function,
28
26
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
33
27
 
34
28
import sys
35
29
import os
36
 
import warnings
 
30
import signal
 
31
 
37
32
import datetime
38
33
 
39
34
import urwid.curses_display
40
35
import urwid
41
36
 
42
37
from dbus.mainloop.glib import DBusGMainLoop
43
 
from gi.repository import GLib
 
38
import gobject
44
39
 
45
40
import dbus
46
41
 
 
42
import UserList
 
43
 
47
44
import locale
48
45
 
 
46
locale.setlocale(locale.LC_ALL, '')
 
47
 
49
48
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
49
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
63
50
 
64
51
# Some useful constants
65
52
domain = 'se.recompile'
66
53
server_interface = domain + '.Mandos'
67
54
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
 
 
 
55
version = "1.4.1"
 
56
 
 
57
# Always run in monochrome mode
 
58
urwid.curses_display.curses.has_colors = lambda : False
 
59
 
 
60
# Urwid doesn't support blinking, but we want it.  Since we have no
 
61
# use for underline on its own, we make underline also always blink.
 
62
urwid.curses_display.curses.A_UNDERLINE |= (
 
63
    urwid.curses_display.curses.A_BLINK)
75
64
 
76
65
def isoformat_to_datetime(iso):
77
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
86
75
                             int(day),
87
76
                             int(hour),
88
77
                             int(minute),
89
 
                             int(second),            # Whole seconds
90
 
                             int(fraction*1000000))  # Microseconds
91
 
 
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
92
80
 
93
81
class MandosClientPropertyCache(object):
94
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
95
83
    properties and calls a hook function when any of them are
96
84
    changed.
97
85
    """
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
 
86
    def __init__(self, proxy_object=None, *args, **kwargs):
 
87
        self.proxy = proxy_object # Mandos Client proxy object
 
88
        
 
89
        self.properties = dict()
101
90
        self.property_changed_match = (
102
 
            self.proxy.connect_to_signal("PropertiesChanged",
103
 
                                         self.properties_changed,
104
 
                                         dbus.PROPERTIES_IFACE,
 
91
            self.proxy.connect_to_signal("PropertyChanged",
 
92
                                         self.property_changed,
 
93
                                         client_interface,
105
94
                                         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.
 
95
        
 
96
        self.properties.update(
 
97
            self.proxy.GetAll(client_interface,
 
98
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
99
 
 
100
        #XXX This breaks good super behaviour
 
101
#        super(MandosClientPropertyCache, self).__init__(
 
102
#            *args, **kwargs)
 
103
    
 
104
    def property_changed(self, property=None, value=None):
 
105
        """This is called whenever we get a PropertyChanged signal
 
106
        It updates the changed property in the "properties" dict.
117
107
        """
118
108
        # Update properties dict with new value
119
 
        if interface == client_interface:
120
 
            self.properties.update(properties)
121
 
 
122
 
    def delete(self):
 
109
        self.properties[property] = value
 
110
    
 
111
    def delete(self, *args, **kwargs):
123
112
        self.property_changed_match.remove()
 
113
        super(MandosClientPropertyCache, self).__init__(
 
114
            *args, **kwargs)
124
115
 
125
116
 
126
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
127
118
    """A Mandos Client which is visible on the screen.
128
119
    """
129
 
 
 
120
    
130
121
    def __init__(self, server_proxy_object=None, update_hook=None,
131
 
                 delete_hook=None, **kwargs):
 
122
                 delete_hook=None, logger=None, *args, **kwargs):
132
123
        # Called on update
133
124
        self.update_hook = update_hook
134
125
        # Called on delete
135
126
        self.delete_hook = delete_hook
136
127
        # Mandos Server proxy object
137
128
        self.server_proxy_object = server_proxy_object
138
 
 
 
129
        # Logger
 
130
        self.logger = logger
 
131
        
139
132
        self._update_timer_callback_tag = None
140
 
 
 
133
        self._update_timer_callback_lock = 0
 
134
        self.last_checker_failed = False
 
135
        
141
136
        # The widget shown normally
142
137
        self._text_widget = urwid.Text("")
143
138
        # The widget shown when we have focus
144
139
        self._focus_text_widget = urwid.Text("")
145
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
140
        super(MandosClientWidget, self).__init__(
 
141
            update_hook=update_hook, delete_hook=delete_hook,
 
142
            *args, **kwargs)
146
143
        self.update()
147
144
        self.opened = False
148
 
 
 
145
        
 
146
        last_checked_ok = isoformat_to_datetime(self.properties
 
147
                                                ["LastCheckedOK"])
 
148
        if last_checked_ok is None:
 
149
            self.last_checker_failed = True
 
150
        else:
 
151
            self.last_checker_failed = ((datetime.datetime.utcnow()
 
152
                                         - last_checked_ok)
 
153
                                        > datetime.timedelta
 
154
                                        (milliseconds=
 
155
                                         self.properties
 
156
                                         ["Interval"]))
 
157
        
 
158
        if self.last_checker_failed:
 
159
            self.using_timer(True)
 
160
        
 
161
        if self.need_approval:
 
162
            self.using_timer(True)
 
163
        
149
164
        self.match_objects = (
150
165
            self.proxy.connect_to_signal("CheckerCompleted",
151
166
                                         self.checker_completed,
167
182
                                         self.rejected,
168
183
                                         client_interface,
169
184
                                         byte_arrays=True))
170
 
        log.debug('Created client %s', self.properties["Name"])
171
 
 
 
185
        #self.logger('Created client %s' % (self.properties["Name"]))
 
186
    
 
187
    def property_changed(self, property=None, value=None):
 
188
        super(self, MandosClientWidget).property_changed(property,
 
189
                                                         value)
 
190
        if property == "ApprovalPending":
 
191
            using_timer(bool(value))
 
192
        
172
193
    def using_timer(self, flag):
173
194
        """Call this method with True or False when timer should be
174
195
        activated or deactivated.
175
196
        """
176
 
        if flag and self._update_timer_callback_tag is None:
 
197
        old = self._update_timer_callback_lock
 
198
        if flag:
 
199
            self._update_timer_callback_lock += 1
 
200
        else:
 
201
            self._update_timer_callback_lock -= 1
 
202
        if old == 0 and self._update_timer_callback_lock:
177
203
            # 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)
 
204
            self._update_timer_callback_tag = (gobject.timeout_add
 
205
                                               (1000,
 
206
                                                self.update_timer))
 
207
        elif old and self._update_timer_callback_lock == 0:
 
208
            gobject.source_remove(self._update_timer_callback_tag)
183
209
            self._update_timer_callback_tag = None
184
 
 
 
210
    
185
211
    def checker_completed(self, exitstatus, condition, command):
186
212
        if exitstatus == 0:
187
 
            log.debug('Checker for client %s (command "%s")'
188
 
                      ' succeeded', self.properties["Name"], command)
 
213
            if self.last_checker_failed:
 
214
                self.last_checker_failed = False
 
215
                self.using_timer(False)
 
216
            #self.logger('Checker for client %s (command "%s")'
 
217
            #            ' was successful'
 
218
            #            % (self.properties["Name"], command))
189
219
            self.update()
190
220
            return
191
221
        # Checker failed
 
222
        if not self.last_checker_failed:
 
223
            self.last_checker_failed = True
 
224
            self.using_timer(True)
192
225
        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))
 
226
            self.logger('Checker for client %s (command "%s")'
 
227
                        ' failed with exit code %s'
 
228
                        % (self.properties["Name"], command,
 
229
                           os.WEXITSTATUS(condition)))
196
230
        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))
 
231
            self.logger('Checker for client %s (command "%s")'
 
232
                        ' was killed by signal %s'
 
233
                        % (self.properties["Name"], command,
 
234
                           os.WTERMSIG(condition)))
 
235
        elif os.WCOREDUMP(condition):
 
236
            self.logger('Checker for client %s (command "%s")'
 
237
                        ' dumped core'
 
238
                        % (self.properties["Name"], command))
 
239
        else:
 
240
            self.logger('Checker for client %s completed'
 
241
                        ' mysteriously')
200
242
        self.update()
201
 
 
 
243
    
202
244
    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
 
 
 
245
        """Server signals that a checker started. This could be useful
 
246
           to log in the future. """
 
247
        #self.logger('Client %s started checker "%s"'
 
248
        #            % (self.properties["Name"], unicode(command)))
 
249
        pass
 
250
    
207
251
    def got_secret(self):
208
 
        log.info("Client %s received its secret",
209
 
                 self.properties["Name"])
210
 
 
 
252
        self.last_checker_failed = False
 
253
        self.logger('Client %s received its secret'
 
254
                    % self.properties["Name"])
 
255
    
211
256
    def need_approval(self, timeout, default):
212
257
        if not default:
213
 
            message = "Client %s needs approval within %f seconds"
 
258
            message = 'Client %s needs approval within %s seconds'
214
259
        else:
215
 
            message = "Client %s will get its secret in %f seconds"
216
 
        log.info(message, self.properties["Name"], timeout/1000)
217
 
 
 
260
            message = 'Client %s will get its secret in %s seconds'
 
261
        self.logger(message
 
262
                    % (self.properties["Name"], timeout/1000))
 
263
        self.using_timer(True)
 
264
    
218
265
    def rejected(self, reason):
219
 
        log.info("Client %s was rejected; reason: %s",
220
 
                 self.properties["Name"], reason)
221
 
 
 
266
        self.logger('Client %s was rejected; reason: %s'
 
267
                    % (self.properties["Name"], reason))
 
268
    
222
269
    def selectable(self):
223
270
        """Make this a "selectable" widget.
224
271
        This overrides the method from urwid.FlowWidget."""
225
272
        return True
226
 
 
 
273
    
227
274
    def rows(self, maxcolrow, focus=False):
228
275
        """How many rows this widget will occupy might depend on
229
276
        whether we have focus or not.
230
277
        This overrides the method from urwid.FlowWidget"""
231
278
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
232
 
 
 
279
    
233
280
    def current_widget(self, focus=False):
234
281
        if focus or self.opened:
235
282
            return self._focus_widget
236
283
        return self._widget
237
 
 
 
284
    
238
285
    def update(self):
239
286
        "Called when what is visible on the screen should be updated."
240
287
        # 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
 
                         }
 
288
        with_standout = { "normal": "standout",
 
289
                          "bold": "bold-standout",
 
290
                          "underline-blink":
 
291
                              "underline-blink-standout",
 
292
                          "bold-underline-blink":
 
293
                              "bold-underline-blink-standout",
 
294
                          }
248
295
 
249
296
        # Rebuild focus and non-focus widgets using current properties
250
297
 
251
298
        # Base part of a client. Name!
252
 
        base = '{name}: '.format(name=self.properties["Name"])
 
299
        base = ('%(name)s: '
 
300
                      % {"name": self.properties["Name"]})
253
301
        if not self.properties["Enabled"]:
254
302
            message = "DISABLED"
255
 
            self.using_timer(False)
256
303
        elif self.properties["ApprovalPending"]:
257
 
            timeout = datetime.timedelta(
258
 
                milliseconds=self.properties["ApprovalDelay"])
 
304
            timeout = datetime.timedelta(milliseconds
 
305
                                         = self.properties
 
306
                                         ["ApprovalDelay"])
259
307
            last_approval_request = isoformat_to_datetime(
260
308
                self.properties["LastApprovalRequest"])
261
309
            if last_approval_request is not None:
262
 
                timer = max(timeout - (datetime.datetime.utcnow()
263
 
                                       - last_approval_request),
264
 
                            datetime.timedelta())
 
310
                timer = timeout - (datetime.datetime.utcnow()
 
311
                                   - last_approval_request)
265
312
            else:
266
313
                timer = datetime.timedelta()
267
314
            if self.properties["ApprovedByDefault"]:
268
 
                message = "Approval in {}. (d)eny?"
 
315
                message = "Approval in %s. (d)eny?"
269
316
            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
 
317
                message = "Denial in %s. (a)pprove?"
 
318
            message = message % unicode(timer).rsplit(".", 1)[0]
 
319
        elif self.last_checker_failed:
 
320
            # When checker has failed, print a timer until client expires
275
321
            expires = self.properties["Expires"]
276
322
            if expires == "":
277
323
                timer = datetime.timedelta(0)
278
324
            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())
 
325
                expires = datetime.datetime.strptime(expires,
 
326
                                                     '%Y-%m-%dT%H:%M:%S.%f')
 
327
                timer = expires - datetime.datetime.utcnow()
283
328
            message = ('A checker has failed! Time until client'
284
 
                       ' gets disabled: {}'
285
 
                       .format(str(timer).rsplit(".", 1)[0]))
286
 
            self.using_timer(True)
 
329
                       ' gets disabled: %s'
 
330
                           % unicode(timer).rsplit(".", 1)[0])
287
331
        else:
288
332
            message = "enabled"
289
 
            self.using_timer(False)
290
 
        self._text = "{}{}".format(base, message)
291
 
 
 
333
        self._text = "%s%s" % (base, message)
 
334
            
292
335
        if not urwid.supports_unicode():
293
336
            self._text = self._text.encode("ascii", "replace")
294
337
        textlist = [("normal", self._text)]
304
347
        # Run update hook, if any
305
348
        if self.update_hook is not None:
306
349
            self.update_hook()
307
 
 
 
350
    
308
351
    def update_timer(self):
309
 
        """called by GLib. Will indefinitely loop until
310
 
        GLib.source_remove() on tag is called
311
 
        """
 
352
        """called by gobject. Will indefinitely loop until
 
353
        gobject.source_remove() on tag is called"""
312
354
        self.update()
313
355
        return True             # Keep calling this
314
 
 
315
 
    def delete(self, **kwargs):
 
356
    
 
357
    def delete(self, *args, **kwargs):
316
358
        if self._update_timer_callback_tag is not None:
317
 
            GLib.source_remove(self._update_timer_callback_tag)
 
359
            gobject.source_remove(self._update_timer_callback_tag)
318
360
            self._update_timer_callback_tag = None
319
361
        for match in self.match_objects:
320
362
            match.remove()
321
363
        self.match_objects = ()
322
364
        if self.delete_hook is not None:
323
365
            self.delete_hook(self)
324
 
        return super(MandosClientWidget, self).delete(**kwargs)
325
 
 
 
366
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
367
    
326
368
    def render(self, maxcolrow, focus=False):
327
369
        """Render differently if we have focus.
328
370
        This overrides the method from urwid.FlowWidget"""
329
371
        return self.current_widget(focus).render(maxcolrow,
330
372
                                                 focus=focus)
331
 
 
 
373
    
332
374
    def keypress(self, maxcolrow, key):
333
375
        """Handle keys.
334
376
        This overrides the method from urwid.FlowWidget"""
335
377
        if key == "+":
336
 
            self.proxy.Set(client_interface, "Enabled",
337
 
                           dbus.Boolean(True), ignore_reply=True,
338
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
378
            self.proxy.Enable(dbus_interface = client_interface,
 
379
                              ignore_reply=True)
339
380
        elif key == "-":
340
 
            self.proxy.Set(client_interface, "Enabled", False,
341
 
                           ignore_reply=True,
342
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
381
            self.proxy.Disable(dbus_interface = client_interface,
 
382
                               ignore_reply=True)
343
383
        elif key == "a":
344
384
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
345
 
                               dbus_interface=client_interface,
 
385
                               dbus_interface = client_interface,
346
386
                               ignore_reply=True)
347
387
        elif key == "d":
348
388
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
349
 
                               dbus_interface=client_interface,
 
389
                                  dbus_interface = client_interface,
350
390
                               ignore_reply=True)
351
391
        elif key == "R" or key == "_" or key == "ctrl k":
352
392
            self.server_proxy_object.RemoveClient(self.proxy
353
393
                                                  .object_path,
354
394
                                                  ignore_reply=True)
355
395
        elif key == "s":
356
 
            self.proxy.Set(client_interface, "CheckerRunning",
357
 
                           dbus.Boolean(True), ignore_reply=True,
358
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
396
            self.proxy.StartChecker(dbus_interface = client_interface,
 
397
                                    ignore_reply=True)
359
398
        elif key == "S":
360
 
            self.proxy.Set(client_interface, "CheckerRunning",
361
 
                           dbus.Boolean(False), ignore_reply=True,
362
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
399
            self.proxy.StopChecker(dbus_interface = client_interface,
 
400
                                   ignore_reply=True)
363
401
        elif key == "C":
364
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
402
            self.proxy.CheckedOK(dbus_interface = client_interface,
365
403
                                 ignore_reply=True)
366
404
        # xxx
367
405
#         elif key == "p" or key == "=":
372
410
#             self.open()
373
411
        else:
374
412
            return key
375
 
 
376
 
    def properties_changed(self, interface, properties, invalidated):
377
 
        """Call self.update() if any properties changed.
 
413
    
 
414
    def property_changed(self, property=None, value=None,
 
415
                         *args, **kwargs):
 
416
        """Call self.update() if old value is not new value.
378
417
        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):
 
418
        property_name = unicode(property)
 
419
        old_value = self.properties.get(property_name)
 
420
        super(MandosClientWidget, self).property_changed(
 
421
            property=property, value=value, *args, **kwargs)
 
422
        if self.properties.get(property_name) != old_value:
385
423
            self.update()
386
424
 
387
425
 
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
426
class ConstrainedListBox(urwid.ListBox):
399
427
    """Like a normal urwid.ListBox, but will consume all "up" or
400
428
    "down" key presses, thus not allowing any containing widgets to
401
429
    use them as an excuse to shift focus away from this widget.
402
430
    """
403
 
    def keypress(self, *args, **kwargs):
404
 
        ret = (super(ConstrainedListBox, self)
405
 
               .keypress(*args, **kwargs))
 
431
    def keypress(self, maxcolrow, key):
 
432
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
406
433
        if ret in ("up", "down"):
407
434
            return
408
435
        return ret
414
441
    """
415
442
    def __init__(self, max_log_length=1000):
416
443
        DBusGMainLoop(set_as_default=True)
417
 
 
 
444
        
418
445
        self.screen = urwid.curses_display.Screen()
419
 
 
 
446
        
420
447
        self.screen.register_palette((
421
448
                ("normal",
422
449
                 "default", "default", None),
423
450
                ("bold",
424
 
                 "bold", "default", "bold"),
 
451
                 "default", "default", "bold"),
425
452
                ("underline-blink",
426
 
                 "underline,blink", "default", "underline,blink"),
 
453
                 "default", "default", "underline"),
427
454
                ("standout",
428
 
                 "standout", "default", "standout"),
 
455
                 "default", "default", "standout"),
429
456
                ("bold-underline-blink",
430
 
                 "bold,underline,blink", "default",
431
 
                 "bold,underline,blink"),
 
457
                 "default", "default", ("bold", "underline")),
432
458
                ("bold-standout",
433
 
                 "bold,standout", "default", "bold,standout"),
 
459
                 "default", "default", ("bold", "standout")),
434
460
                ("underline-blink-standout",
435
 
                 "underline,blink,standout", "default",
436
 
                 "underline,blink,standout"),
 
461
                 "default", "default", ("underline", "standout")),
437
462
                ("bold-underline-blink-standout",
438
 
                 "bold,underline,blink,standout", "default",
439
 
                 "bold,underline,blink,standout"),
 
463
                 "default", "default", ("bold", "underline",
 
464
                                          "standout")),
440
465
                ))
441
 
 
 
466
        
442
467
        if urwid.supports_unicode():
443
 
            self.divider = "─"  # \u2500
 
468
            self.divider = "─" # \u2500
 
469
            #self.divider = "━" # \u2501
444
470
        else:
445
 
            self.divider = "_"  # \u005f
446
 
 
 
471
            #self.divider = "-" # \u002d
 
472
            self.divider = "_" # \u005f
 
473
        
447
474
        self.screen.start()
448
 
 
 
475
        
449
476
        self.size = self.screen.get_cols_rows()
450
 
 
 
477
        
451
478
        self.clients = urwid.SimpleListWalker([])
452
479
        self.clients_dict = {}
453
 
 
 
480
        
454
481
        # We will add Text widgets to this list
455
 
        self.log = urwid.SimpleListWalker([])
 
482
        self.log = []
456
483
        self.max_log_length = max_log_length
457
 
 
 
484
        
458
485
        # We keep a reference to the log widget so we can remove it
459
486
        # from the ListWalker without it getting destroyed
460
487
        self.logbox = ConstrainedListBox(self.log)
461
 
 
 
488
        
462
489
        # This keeps track of whether self.uilist currently has
463
490
        # self.logbox in it or not
464
491
        self.log_visible = True
465
492
        self.log_wrap = "any"
466
 
 
467
 
        self.loghandler = UILogHandler(self)
468
 
 
 
493
        
469
494
        self.rebuild()
470
 
        self.add_log_line(("bold",
471
 
                           "Mandos Monitor version " + version))
472
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
473
 
 
 
495
        self.log_message_raw(("bold",
 
496
                              "Mandos Monitor version " + version))
 
497
        self.log_message_raw(("bold",
 
498
                              "q: Quit  ?: Help"))
 
499
        
474
500
        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
 
 
 
501
        self.main_loop = gobject.MainLoop()
 
502
    
 
503
    def client_not_found(self, fingerprint, address):
 
504
        self.log_message(("Client with address %s and fingerprint %s"
 
505
                          " could not be found" % (address,
 
506
                                                    fingerprint)))
 
507
    
481
508
    def rebuild(self):
482
509
        """This rebuilds the User Interface.
483
510
        Call this when the widget layout needs to change"""
484
511
        self.uilist = []
485
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
512
        #self.uilist.append(urwid.ListBox(self.clients))
486
513
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
487
514
                                                          clients),
488
 
                                       # header=urwid.Divider(),
 
515
                                       #header=urwid.Divider(),
489
516
                                       header=None,
490
 
                                       footer=urwid.Divider(
491
 
                                           div_char=self.divider)))
 
517
                                       footer=
 
518
                                       urwid.Divider(div_char=
 
519
                                                     self.divider)))
492
520
        if self.log_visible:
493
521
            self.uilist.append(self.logbox)
494
522
        self.topwidget = urwid.Pile(self.uilist)
495
 
 
496
 
    def add_log_line(self, markup):
 
523
    
 
524
    def log_message(self, message):
 
525
        timestamp = datetime.datetime.now().isoformat()
 
526
        self.log_message_raw(timestamp + ": " + message)
 
527
    
 
528
    def log_message_raw(self, markup):
 
529
        """Add a log message to the log buffer."""
497
530
        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,
 
531
        if (self.max_log_length
 
532
            and len(self.log) > self.max_log_length):
 
533
            del self.log[0:len(self.log)-self.max_log_length-1]
 
534
        self.logbox.set_focus(len(self.logbox.body.contents),
502
535
                              coming_from="above")
503
536
        self.refresh()
504
 
 
 
537
    
505
538
    def toggle_log_display(self):
506
539
        """Toggle visibility of the log buffer."""
507
540
        self.log_visible = not self.log_visible
508
541
        self.rebuild()
509
 
        log.debug("Log visibility changed to: %s", self.log_visible)
510
 
 
 
542
        #self.log_message("Log visibility changed to: "
 
543
        #                 + unicode(self.log_visible))
 
544
    
511
545
    def change_log_display(self):
512
546
        """Change type of log display.
513
547
        Currently, this toggles wrapping of text lines."""
517
551
            self.log_wrap = "clip"
518
552
        for textwidget in self.log:
519
553
            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):
 
554
        #self.log_message("Wrap mode: " + self.log_wrap)
 
555
    
 
556
    def find_and_remove_client(self, path, name):
523
557
        """Find a client by its object path and remove it.
524
 
 
525
 
        This is connected to the InterfacesRemoved signal from the
 
558
        
 
559
        This is connected to the ClientRemoved signal from the
526
560
        Mandos server object."""
527
 
        if client_interface not in interfaces:
528
 
            # Not a Mandos client object; ignore
529
 
            return
530
561
        try:
531
562
            client = self.clients_dict[path]
532
563
        except KeyError:
533
564
            # not found?
534
 
            log.warning("Unknown client %s removed", path)
 
565
            self.log_message("Unknown client %r (%r) removed", name,
 
566
                             path)
535
567
            return
536
568
        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
 
569
    
 
570
    def add_new_client(self, path):
547
571
        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])),
 
572
        self.add_client(MandosClientWidget(server_proxy_object
 
573
                                           =self.mandos_serv,
 
574
                                           proxy_object
 
575
                                           =client_proxy_object,
 
576
                                           update_hook
 
577
                                           =self.refresh,
 
578
                                           delete_hook
 
579
                                           =self.remove_client,
 
580
                                           logger
 
581
                                           =self.log_message),
554
582
                        path=path)
555
 
 
 
583
    
556
584
    def add_client(self, client, path=None):
557
585
        self.clients.append(client)
558
586
        if path is None:
559
587
            path = client.proxy.object_path
560
588
        self.clients_dict[path] = client
561
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
589
        self.clients.sort(None, lambda c: c.properties["Name"])
562
590
        self.refresh()
563
 
 
 
591
    
564
592
    def remove_client(self, client, path=None):
565
593
        self.clients.remove(client)
566
594
        if path is None:
567
595
            path = client.proxy.object_path
568
596
        del self.clients_dict[path]
 
597
        if not self.clients_dict:
 
598
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
599
            # is completely emptied, we need to recreate it.
 
600
            self.clients = urwid.SimpleListWalker([])
 
601
            self.rebuild()
569
602
        self.refresh()
570
 
 
 
603
    
571
604
    def refresh(self):
572
605
        """Redraw the screen"""
573
606
        canvas = self.topwidget.render(self.size, focus=True)
574
607
        self.screen.draw_screen(self.size, canvas)
575
 
 
 
608
    
576
609
    def run(self):
577
610
        """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
611
        self.bus = dbus.SystemBus()
584
612
        mandos_dbus_objc = self.bus.get_object(
585
613
            self.busname, "/", follow_name_owner_changes=True)
586
 
        self.mandos_serv = dbus.Interface(
587
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
614
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
615
                                          dbus_interface
 
616
                                          = server_interface)
588
617
        try:
589
618
            mandos_clients = (self.mandos_serv
590
619
                              .GetAllClientsWithProperties())
591
 
            if not mandos_clients:
592
 
                log.warning("Note: Server has no clients.")
593
620
        except dbus.exceptions.DBusException:
594
 
            log.warning("Note: No Mandos server running.")
595
621
            mandos_clients = dbus.Dictionary()
596
 
 
 
622
        
597
623
        (self.mandos_serv
598
 
         .connect_to_signal("InterfacesRemoved",
 
624
         .connect_to_signal("ClientRemoved",
599
625
                            self.find_and_remove_client,
600
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
626
                            dbus_interface=server_interface,
601
627
                            byte_arrays=True))
602
628
        (self.mandos_serv
603
 
         .connect_to_signal("InterfacesAdded",
 
629
         .connect_to_signal("ClientAdded",
604
630
                            self.add_new_client,
605
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
631
                            dbus_interface=server_interface,
606
632
                            byte_arrays=True))
607
633
        (self.mandos_serv
608
634
         .connect_to_signal("ClientNotFound",
609
635
                            self.client_not_found,
610
636
                            dbus_interface=server_interface,
611
637
                            byte_arrays=True))
612
 
        for path, client in mandos_clients.items():
 
638
        for path, client in mandos_clients.iteritems():
613
639
            client_proxy_object = self.bus.get_object(self.busname,
614
640
                                                      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),
 
641
            self.add_client(MandosClientWidget(server_proxy_object
 
642
                                               =self.mandos_serv,
 
643
                                               proxy_object
 
644
                                               =client_proxy_object,
 
645
                                               properties=client,
 
646
                                               update_hook
 
647
                                               =self.refresh,
 
648
                                               delete_hook
 
649
                                               =self.remove_client,
 
650
                                               logger
 
651
                                               =self.log_message),
621
652
                            path=path)
622
653
 
623
654
        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)))
 
655
        self._input_callback_tag = (gobject.io_add_watch
 
656
                                    (sys.stdin.fileno(),
 
657
                                     gobject.IO_IN,
 
658
                                     self.process_input))
629
659
        self.main_loop.run()
630
660
        # 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
 
 
 
661
        gobject.source_remove(self._input_callback_tag)
 
662
        self.screen.stop()
 
663
    
636
664
    def stop(self):
637
665
        self.main_loop.quit()
638
 
        log.removeHandler(self.loghandler)
639
 
        log.propagate = self.orig_log_propagate
640
 
 
 
666
    
641
667
    def process_input(self, source, condition):
642
668
        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
 
                        }
 
669
        translations = { "ctrl n": "down",      # Emacs
 
670
                         "ctrl p": "up",        # Emacs
 
671
                         "ctrl v": "page down", # Emacs
 
672
                         "meta v": "page up",   # Emacs
 
673
                         " ": "page down",      # less
 
674
                         "f": "page down",      # less
 
675
                         "b": "page up",        # less
 
676
                         "j": "down",           # vi
 
677
                         "k": "up",             # vi
 
678
                         }
653
679
        for key in keys:
654
680
            try:
655
681
                key = translations[key]
656
682
            except KeyError:    # :-)
657
683
                pass
658
 
 
 
684
            
659
685
            if key == "q" or key == "Q":
660
686
                self.stop()
661
687
                break
662
688
            elif key == "window resize":
663
689
                self.size = self.screen.get_cols_rows()
664
690
                self.refresh()
665
 
            elif key == "ctrl l":
666
 
                self.screen.clear()
 
691
            elif key == "\f":  # Ctrl-L
667
692
                self.refresh()
668
693
            elif key == "l" or key == "D":
669
694
                self.toggle_log_display()
675
700
                if not self.log_visible:
676
701
                    self.log_visible = True
677
702
                    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
 
                                   ))))
 
703
                self.log_message_raw(("bold",
 
704
                                      "  ".
 
705
                                      join(("q: Quit",
 
706
                                            "?: Help",
 
707
                                            "l: Log window toggle",
 
708
                                            "TAB: Switch window",
 
709
                                            "w: Wrap (log)"))))
 
710
                self.log_message_raw(("bold",
 
711
                                      "  "
 
712
                                      .join(("Clients:",
 
713
                                             "+: Enable",
 
714
                                             "-: Disable",
 
715
                                             "R: Remove",
 
716
                                             "s: Start new checker",
 
717
                                             "S: Stop checker",
 
718
                                             "C: Checker OK",
 
719
                                             "a: Approve",
 
720
                                             "d: Deny"))))
697
721
                self.refresh()
698
722
            elif key == "tab":
699
723
                if self.topwidget.get_focus() is self.logbox:
701
725
                else:
702
726
                    self.topwidget.set_focus(self.logbox)
703
727
                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
 
728
            #elif (key == "end" or key == "meta >" or key == "G"
 
729
            #      or key == ">"):
 
730
            #    pass            # xxx end-of-buffer
 
731
            #elif (key == "home" or key == "meta <" or key == "g"
 
732
            #      or key == "<"):
 
733
            #    pass            # xxx beginning-of-buffer
 
734
            #elif key == "ctrl e" or key == "$":
 
735
            #    pass            # xxx move-end-of-line
 
736
            #elif key == "ctrl a" or key == "^":
 
737
            #    pass            # xxx move-beginning-of-line
 
738
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
739
            #    pass            # xxx left
 
740
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
741
            #    pass            # xxx right
 
742
            #elif key == "a":
 
743
            #    pass            # scroll up log
 
744
            #elif key == "z":
 
745
            #    pass            # scroll down log
729
746
            elif self.topwidget.selectable():
730
747
                self.topwidget.keypress(self.size, key)
731
748
                self.refresh()
732
749
        return True
733
750
 
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
751
ui = UserInterface()
749
752
try:
750
753
    ui.run()
751
754
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()
 
755
    ui.screen.stop()
 
756
except Exception, e:
 
757
    ui.log_message(unicode(e))
 
758
    ui.screen.stop()
759
759
    raise