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  • Committer: Teddy Hogeborn
  • Date: 2019-08-24 15:33:58 UTC
  • mto: This revision was merged to the branch mainline in revision 392.
  • Revision ID: teddy@recompile.se-20190824153358-o69zprg8yiub1t0d
mandos-monitor: Use new GLib.io_add_watch() call signature

* mandos-monitor: When calling GLib.io_add_watch(), always pass a
                  channel as the first argument instead of a file
                  descriptor, and pass priority as the second
                  argument.  This is supported by PyGObject 3.8 or
                  later.

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mandos-monitor
1
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 © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 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
 
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
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
 
# 
 
20
#
19
21
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
22
24
# Contact the authors at <mandos@recompile.se>.
23
 
# 
 
25
#
24
26
 
25
27
from __future__ import (division, absolute_import, print_function,
26
28
                        unicode_literals)
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
27
33
 
28
34
import sys
29
35
import os
30
 
import signal
31
36
 
32
37
import datetime
33
38
 
35
40
import urwid
36
41
 
37
42
from dbus.mainloop.glib import DBusGMainLoop
38
 
import gobject
 
43
from gi.repository import GLib
39
44
 
40
45
import dbus
41
46
 
42
 
import UserList
43
 
 
44
47
import locale
45
48
 
 
49
import logging
 
50
 
 
51
if sys.version_info.major == 2:
 
52
    str = unicode
 
53
 
46
54
locale.setlocale(locale.LC_ALL, '')
47
55
 
48
 
import logging
49
56
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
50
57
 
51
58
# Some useful constants
52
59
domain = 'se.recompile'
53
60
server_interface = domain + '.Mandos'
54
61
client_interface = domain + '.Mandos.Client'
55
 
version = "1.4.0"
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)
 
62
version = "1.8.8"
 
63
 
 
64
try:
 
65
    dbus.OBJECT_MANAGER_IFACE
 
66
except AttributeError:
 
67
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
 
68
 
64
69
 
65
70
def isoformat_to_datetime(iso):
66
71
    "Parse an ISO 8601 date string to a datetime.datetime()"
75
80
                             int(day),
76
81
                             int(hour),
77
82
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
 
83
                             int(second),            # Whole seconds
 
84
                             int(fraction*1000000))  # Microseconds
 
85
 
80
86
 
81
87
class MandosClientPropertyCache(object):
82
88
    """This wraps a Mandos Client D-Bus proxy object, caches the
83
89
    properties and calls a hook function when any of them are
84
90
    changed.
85
91
    """
86
 
    def __init__(self, proxy_object=None, *args, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
92
    def __init__(self, proxy_object=None, properties=None, **kwargs):
 
93
        self.proxy = proxy_object  # Mandos Client proxy object
 
94
        self.properties = dict() if properties is None else properties
90
95
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
93
 
                                         client_interface,
 
96
            self.proxy.connect_to_signal("PropertiesChanged",
 
97
                                         self.properties_changed,
 
98
                                         dbus.PROPERTIES_IFACE,
94
99
                                         byte_arrays=True))
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.
 
100
 
 
101
        if properties is None:
 
102
            self.properties.update(self.proxy.GetAll(
 
103
                client_interface,
 
104
                dbus_interface=dbus.PROPERTIES_IFACE))
 
105
 
 
106
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
107
 
 
108
    def properties_changed(self, interface, properties, invalidated):
 
109
        """This is called whenever we get a PropertiesChanged signal
 
110
        It updates the changed properties in the "properties" dict.
107
111
        """
108
112
        # Update properties dict with new value
109
 
        self.properties[property] = value
110
 
    
111
 
    def delete(self, *args, **kwargs):
 
113
        if interface == client_interface:
 
114
            self.properties.update(properties)
 
115
 
 
116
    def delete(self):
112
117
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
118
 
116
119
 
117
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
118
121
    """A Mandos Client which is visible on the screen.
119
122
    """
120
 
    
 
123
 
121
124
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
125
                 delete_hook=None, logger=None, **kwargs):
123
126
        # Called on update
124
127
        self.update_hook = update_hook
125
128
        # Called on delete
128
131
        self.server_proxy_object = server_proxy_object
129
132
        # Logger
130
133
        self.logger = logger
131
 
        
 
134
 
132
135
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
 
        
 
136
 
136
137
        # The widget shown normally
137
138
        self._text_widget = urwid.Text("")
138
139
        # The widget shown when we have focus
139
140
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
141
        super(MandosClientWidget, self).__init__(**kwargs)
143
142
        self.update()
144
143
        self.opened = False
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
 
        
 
144
 
164
145
        self.match_objects = (
165
146
            self.proxy.connect_to_signal("CheckerCompleted",
166
147
                                         self.checker_completed,
182
163
                                         self.rejected,
183
164
                                         client_interface,
184
165
                                         byte_arrays=True))
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
 
        
 
166
        self.logger('Created client {}'
 
167
                    .format(self.properties["Name"]), level=0)
 
168
 
193
169
    def using_timer(self, flag):
194
170
        """Call this method with True or False when timer should be
195
171
        activated or deactivated.
196
172
        """
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:
 
173
        if flag and self._update_timer_callback_tag is None:
203
174
            # Will update the shown timer value every second
204
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
175
            self._update_timer_callback_tag = (GLib.timeout_add
205
176
                                               (1000,
206
177
                                                self.update_timer))
207
 
        elif old and self._update_timer_callback_lock == 0:
208
 
            gobject.source_remove(self._update_timer_callback_tag)
 
178
        elif not (flag or self._update_timer_callback_tag is None):
 
179
            GLib.source_remove(self._update_timer_callback_tag)
209
180
            self._update_timer_callback_tag = None
210
 
    
 
181
 
211
182
    def checker_completed(self, exitstatus, condition, command):
212
183
        if exitstatus == 0:
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))
 
184
            self.logger('Checker for client {} (command "{}")'
 
185
                        ' succeeded'.format(self.properties["Name"],
 
186
                                            command), level=0)
219
187
            self.update()
220
188
            return
221
189
        # Checker failed
222
 
        if not self.last_checker_failed:
223
 
            self.last_checker_failed = True
224
 
            self.using_timer(True)
225
190
        if os.WIFEXITED(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)))
 
191
            self.logger('Checker for client {} (command "{}") failed'
 
192
                        ' with exit code {}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WEXITSTATUS(condition)))
230
195
        elif os.WIFSIGNALED(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')
 
196
            self.logger('Checker for client {} (command "{}") was'
 
197
                        ' killed by signal {}'
 
198
                        .format(self.properties["Name"], command,
 
199
                                os.WTERMSIG(condition)))
242
200
        self.update()
243
 
    
 
201
 
244
202
    def checker_started(self, command):
245
 
        #self.logger('Client %s started checker "%s"'
246
 
        #            % (self.properties["Name"], unicode(command)))
247
 
        pass
248
 
    
 
203
        """Server signals that a checker started."""
 
204
        self.logger('Client {} started checker "{}"'
 
205
                    .format(self.properties["Name"],
 
206
                            command), level=0)
 
207
 
249
208
    def got_secret(self):
250
 
        self.last_checker_failed = False
251
 
        self.logger('Client %s received its secret'
252
 
                    % self.properties["Name"])
253
 
    
 
209
        self.logger('Client {} received its secret'
 
210
                    .format(self.properties["Name"]))
 
211
 
254
212
    def need_approval(self, timeout, default):
255
213
        if not default:
256
 
            message = 'Client %s needs approval within %s seconds'
 
214
            message = 'Client {} needs approval within {} seconds'
257
215
        else:
258
 
            message = 'Client %s will get its secret in %s seconds'
259
 
        self.logger(message
260
 
                    % (self.properties["Name"], timeout/1000))
261
 
        self.using_timer(True)
262
 
    
 
216
            message = 'Client {} will get its secret in {} seconds'
 
217
        self.logger(message.format(self.properties["Name"],
 
218
                                   timeout/1000))
 
219
 
263
220
    def rejected(self, reason):
264
 
        self.logger('Client %s was rejected; reason: %s'
265
 
                    % (self.properties["Name"], reason))
266
 
    
 
221
        self.logger('Client {} was rejected; reason: {}'
 
222
                    .format(self.properties["Name"], reason))
 
223
 
267
224
    def selectable(self):
268
225
        """Make this a "selectable" widget.
269
226
        This overrides the method from urwid.FlowWidget."""
270
227
        return True
271
 
    
 
228
 
272
229
    def rows(self, maxcolrow, focus=False):
273
230
        """How many rows this widget will occupy might depend on
274
231
        whether we have focus or not.
275
232
        This overrides the method from urwid.FlowWidget"""
276
233
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
277
 
    
 
234
 
278
235
    def current_widget(self, focus=False):
279
236
        if focus or self.opened:
280
237
            return self._focus_widget
281
238
        return self._widget
282
 
    
 
239
 
283
240
    def update(self):
284
241
        "Called when what is visible on the screen should be updated."
285
242
        # How to add standout mode to a style
286
 
        with_standout = { "normal": "standout",
287
 
                          "bold": "bold-standout",
288
 
                          "underline-blink":
289
 
                              "underline-blink-standout",
290
 
                          "bold-underline-blink":
291
 
                              "bold-underline-blink-standout",
292
 
                          }
 
243
        with_standout = {"normal": "standout",
 
244
                         "bold": "bold-standout",
 
245
                         "underline-blink":
 
246
                         "underline-blink-standout",
 
247
                         "bold-underline-blink":
 
248
                         "bold-underline-blink-standout",
 
249
                         }
293
250
 
294
251
        # Rebuild focus and non-focus widgets using current properties
295
252
 
296
253
        # Base part of a client. Name!
297
 
        base = ('%(name)s: '
298
 
                      % {"name": self.properties["Name"]})
 
254
        base = '{name}: '.format(name=self.properties["Name"])
299
255
        if not self.properties["Enabled"]:
300
256
            message = "DISABLED"
 
257
            self.using_timer(False)
301
258
        elif self.properties["ApprovalPending"]:
302
 
            timeout = datetime.timedelta(milliseconds
303
 
                                         = self.properties
304
 
                                         ["ApprovalDelay"])
 
259
            timeout = datetime.timedelta(
 
260
                milliseconds=self.properties["ApprovalDelay"])
305
261
            last_approval_request = isoformat_to_datetime(
306
262
                self.properties["LastApprovalRequest"])
307
263
            if last_approval_request is not None:
308
 
                timer = timeout - (datetime.datetime.utcnow()
309
 
                                   - last_approval_request)
 
264
                timer = max(timeout - (datetime.datetime.utcnow()
 
265
                                       - last_approval_request),
 
266
                            datetime.timedelta())
310
267
            else:
311
268
                timer = datetime.timedelta()
312
269
            if self.properties["ApprovedByDefault"]:
313
 
                message = "Approval in %s. (d)eny?"
 
270
                message = "Approval in {}. (d)eny?"
314
271
            else:
315
 
                message = "Denial in %s. (a)pprove?"
316
 
            message = message % unicode(timer).rsplit(".", 1)[0]
317
 
        elif self.last_checker_failed:
318
 
            # When checker has failed, print a timer until client expires
 
272
                message = "Denial in {}. (a)pprove?"
 
273
            message = message.format(str(timer).rsplit(".", 1)[0])
 
274
            self.using_timer(True)
 
275
        elif self.properties["LastCheckerStatus"] != 0:
 
276
            # When checker has failed, show timer until client expires
319
277
            expires = self.properties["Expires"]
320
278
            if expires == "":
321
279
                timer = datetime.timedelta(0)
322
280
            else:
323
 
                expires = datetime.datetime.strptime(expires,
324
 
                                                     '%Y-%m-%dT%H:%M:%S.%f')
325
 
                timer = expires - datetime.datetime.utcnow()
 
281
                expires = (datetime.datetime.strptime
 
282
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
283
                timer = max(expires - datetime.datetime.utcnow(),
 
284
                            datetime.timedelta())
326
285
            message = ('A checker has failed! Time until client'
327
 
                       ' gets disabled: %s'
328
 
                           % unicode(timer).rsplit(".", 1)[0])
 
286
                       ' gets disabled: {}'
 
287
                       .format(str(timer).rsplit(".", 1)[0]))
 
288
            self.using_timer(True)
329
289
        else:
330
290
            message = "enabled"
331
 
        self._text = "%s%s" % (base, message)
332
 
            
 
291
            self.using_timer(False)
 
292
        self._text = "{}{}".format(base, message)
 
293
 
333
294
        if not urwid.supports_unicode():
334
295
            self._text = self._text.encode("ascii", "replace")
335
296
        textlist = [("normal", self._text)]
345
306
        # Run update hook, if any
346
307
        if self.update_hook is not None:
347
308
            self.update_hook()
348
 
    
 
309
 
349
310
    def update_timer(self):
350
 
        """called by gobject. Will indefinitely loop until
351
 
        gobject.source_remove() on tag is called"""
 
311
        """called by GLib. Will indefinitely loop until
 
312
        GLib.source_remove() on tag is called
 
313
        """
352
314
        self.update()
353
315
        return True             # Keep calling this
354
 
    
355
 
    def delete(self, *args, **kwargs):
 
316
 
 
317
    def delete(self, **kwargs):
356
318
        if self._update_timer_callback_tag is not None:
357
 
            gobject.source_remove(self._update_timer_callback_tag)
 
319
            GLib.source_remove(self._update_timer_callback_tag)
358
320
            self._update_timer_callback_tag = None
359
321
        for match in self.match_objects:
360
322
            match.remove()
361
323
        self.match_objects = ()
362
324
        if self.delete_hook is not None:
363
325
            self.delete_hook(self)
364
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
365
 
    
 
326
        return super(MandosClientWidget, self).delete(**kwargs)
 
327
 
366
328
    def render(self, maxcolrow, focus=False):
367
329
        """Render differently if we have focus.
368
330
        This overrides the method from urwid.FlowWidget"""
369
331
        return self.current_widget(focus).render(maxcolrow,
370
332
                                                 focus=focus)
371
 
    
 
333
 
372
334
    def keypress(self, maxcolrow, key):
373
335
        """Handle keys.
374
336
        This overrides the method from urwid.FlowWidget"""
375
337
        if key == "+":
376
 
            self.proxy.Enable(dbus_interface = client_interface,
377
 
                              ignore_reply=True)
 
338
            self.proxy.Set(client_interface, "Enabled",
 
339
                           dbus.Boolean(True), ignore_reply=True,
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
378
341
        elif key == "-":
379
 
            self.proxy.Disable(dbus_interface = client_interface,
380
 
                               ignore_reply=True)
 
342
            self.proxy.Set(client_interface, "Enabled", False,
 
343
                           ignore_reply=True,
 
344
                           dbus_interface=dbus.PROPERTIES_IFACE)
381
345
        elif key == "a":
382
346
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
383
 
                               dbus_interface = client_interface,
 
347
                               dbus_interface=client_interface,
384
348
                               ignore_reply=True)
385
349
        elif key == "d":
386
350
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
387
 
                                  dbus_interface = client_interface,
 
351
                               dbus_interface=client_interface,
388
352
                               ignore_reply=True)
389
353
        elif key == "R" or key == "_" or key == "ctrl k":
390
354
            self.server_proxy_object.RemoveClient(self.proxy
391
355
                                                  .object_path,
392
356
                                                  ignore_reply=True)
393
357
        elif key == "s":
394
 
            self.proxy.StartChecker(dbus_interface = client_interface,
395
 
                                    ignore_reply=True)
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(True), ignore_reply=True,
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
396
361
        elif key == "S":
397
 
            self.proxy.StopChecker(dbus_interface = client_interface,
398
 
                                   ignore_reply=True)
 
362
            self.proxy.Set(client_interface, "CheckerRunning",
 
363
                           dbus.Boolean(False), ignore_reply=True,
 
364
                           dbus_interface=dbus.PROPERTIES_IFACE)
399
365
        elif key == "C":
400
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
366
            self.proxy.CheckedOK(dbus_interface=client_interface,
401
367
                                 ignore_reply=True)
402
368
        # xxx
403
369
#         elif key == "p" or key == "=":
408
374
#             self.open()
409
375
        else:
410
376
            return key
411
 
    
412
 
    def property_changed(self, property=None, value=None,
413
 
                         *args, **kwargs):
414
 
        """Call self.update() if old value is not new value.
 
377
 
 
378
    def properties_changed(self, interface, properties, invalidated):
 
379
        """Call self.update() if any properties changed.
415
380
        This overrides the method from MandosClientPropertyCache"""
416
 
        property_name = unicode(property)
417
 
        old_value = self.properties.get(property_name)
418
 
        super(MandosClientWidget, self).property_changed(
419
 
            property=property, value=value, *args, **kwargs)
420
 
        if self.properties.get(property_name) != old_value:
 
381
        old_values = {key: self.properties.get(key)
 
382
                      for key in properties.keys()}
 
383
        super(MandosClientWidget, self).properties_changed(
 
384
            interface, properties, invalidated)
 
385
        if any(old_values[key] != self.properties.get(key)
 
386
               for key in old_values):
421
387
            self.update()
422
388
 
423
389
 
426
392
    "down" key presses, thus not allowing any containing widgets to
427
393
    use them as an excuse to shift focus away from this widget.
428
394
    """
429
 
    def keypress(self, maxcolrow, key):
430
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = (super(ConstrainedListBox, self)
 
397
               .keypress(*args, **kwargs))
431
398
        if ret in ("up", "down"):
432
399
            return
433
400
        return ret
437
404
    """This is the entire user interface - the whole screen
438
405
    with boxes, lists of client widgets, etc.
439
406
    """
440
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
441
408
        DBusGMainLoop(set_as_default=True)
442
 
        
 
409
 
443
410
        self.screen = urwid.curses_display.Screen()
444
 
        
 
411
 
445
412
        self.screen.register_palette((
446
413
                ("normal",
447
414
                 "default", "default", None),
448
415
                ("bold",
449
 
                 "default", "default", "bold"),
 
416
                 "bold", "default", "bold"),
450
417
                ("underline-blink",
451
 
                 "default", "default", "underline"),
 
418
                 "underline,blink", "default", "underline,blink"),
452
419
                ("standout",
453
 
                 "default", "default", "standout"),
 
420
                 "standout", "default", "standout"),
454
421
                ("bold-underline-blink",
455
 
                 "default", "default", ("bold", "underline")),
 
422
                 "bold,underline,blink", "default",
 
423
                 "bold,underline,blink"),
456
424
                ("bold-standout",
457
 
                 "default", "default", ("bold", "standout")),
 
425
                 "bold,standout", "default", "bold,standout"),
458
426
                ("underline-blink-standout",
459
 
                 "default", "default", ("underline", "standout")),
 
427
                 "underline,blink,standout", "default",
 
428
                 "underline,blink,standout"),
460
429
                ("bold-underline-blink-standout",
461
 
                 "default", "default", ("bold", "underline",
462
 
                                          "standout")),
 
430
                 "bold,underline,blink,standout", "default",
 
431
                 "bold,underline,blink,standout"),
463
432
                ))
464
 
        
 
433
 
465
434
        if urwid.supports_unicode():
466
 
            self.divider = "─" # \u2500
467
 
            #self.divider = "━" # \u2501
 
435
            self.divider = "─"  # \u2500
468
436
        else:
469
 
            #self.divider = "-" # \u002d
470
 
            self.divider = "_" # \u005f
471
 
        
 
437
            self.divider = "_"  # \u005f
 
438
 
472
439
        self.screen.start()
473
 
        
 
440
 
474
441
        self.size = self.screen.get_cols_rows()
475
 
        
 
442
 
476
443
        self.clients = urwid.SimpleListWalker([])
477
444
        self.clients_dict = {}
478
 
        
 
445
 
479
446
        # We will add Text widgets to this list
480
 
        self.log = []
 
447
        self.log = urwid.SimpleListWalker([])
481
448
        self.max_log_length = max_log_length
482
 
        
 
449
 
 
450
        self.log_level = log_level
 
451
 
483
452
        # We keep a reference to the log widget so we can remove it
484
453
        # from the ListWalker without it getting destroyed
485
454
        self.logbox = ConstrainedListBox(self.log)
486
 
        
 
455
 
487
456
        # This keeps track of whether self.uilist currently has
488
457
        # self.logbox in it or not
489
458
        self.log_visible = True
490
459
        self.log_wrap = "any"
491
 
        
 
460
 
492
461
        self.rebuild()
493
462
        self.log_message_raw(("bold",
494
463
                              "Mandos Monitor version " + version))
495
464
        self.log_message_raw(("bold",
496
465
                              "q: Quit  ?: Help"))
497
 
        
 
466
 
498
467
        self.busname = domain + '.Mandos'
499
 
        self.main_loop = gobject.MainLoop()
500
 
        self.bus = dbus.SystemBus()
501
 
        mandos_dbus_objc = self.bus.get_object(
502
 
            self.busname, "/", follow_name_owner_changes=True)
503
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
504
 
                                          dbus_interface
505
 
                                          = server_interface)
506
 
        try:
507
 
            mandos_clients = (self.mandos_serv
508
 
                              .GetAllClientsWithProperties())
509
 
        except dbus.exceptions.DBusException:
510
 
            mandos_clients = dbus.Dictionary()
511
 
        
512
 
        (self.mandos_serv
513
 
         .connect_to_signal("ClientRemoved",
514
 
                            self.find_and_remove_client,
515
 
                            dbus_interface=server_interface,
516
 
                            byte_arrays=True))
517
 
        (self.mandos_serv
518
 
         .connect_to_signal("ClientAdded",
519
 
                            self.add_new_client,
520
 
                            dbus_interface=server_interface,
521
 
                            byte_arrays=True))
522
 
        (self.mandos_serv
523
 
         .connect_to_signal("ClientNotFound",
524
 
                            self.client_not_found,
525
 
                            dbus_interface=server_interface,
526
 
                            byte_arrays=True))
527
 
        for path, client in mandos_clients.iteritems():
528
 
            client_proxy_object = self.bus.get_object(self.busname,
529
 
                                                      path)
530
 
            self.add_client(MandosClientWidget(server_proxy_object
531
 
                                               =self.mandos_serv,
532
 
                                               proxy_object
533
 
                                               =client_proxy_object,
534
 
                                               properties=client,
535
 
                                               update_hook
536
 
                                               =self.refresh,
537
 
                                               delete_hook
538
 
                                               =self.remove_client,
539
 
                                               logger
540
 
                                               =self.log_message),
541
 
                            path=path)
542
 
    
 
468
        self.main_loop = GLib.MainLoop()
 
469
 
543
470
    def client_not_found(self, fingerprint, address):
544
 
        self.log_message(("Client with address %s and fingerprint %s"
545
 
                          " could not be found" % (address,
546
 
                                                    fingerprint)))
547
 
    
 
471
        self.log_message("Client with address {} and fingerprint {}"
 
472
                         " could not be found"
 
473
                         .format(address, fingerprint))
 
474
 
548
475
    def rebuild(self):
549
476
        """This rebuilds the User Interface.
550
477
        Call this when the widget layout needs to change"""
551
478
        self.uilist = []
552
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
479
        # self.uilist.append(urwid.ListBox(self.clients))
553
480
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
554
481
                                                          clients),
555
 
                                       #header=urwid.Divider(),
 
482
                                       # header=urwid.Divider(),
556
483
                                       header=None,
557
 
                                       footer=
558
 
                                       urwid.Divider(div_char=
559
 
                                                     self.divider)))
 
484
                                       footer=urwid.Divider(
 
485
                                           div_char=self.divider)))
560
486
        if self.log_visible:
561
487
            self.uilist.append(self.logbox)
562
 
            pass
563
488
        self.topwidget = urwid.Pile(self.uilist)
564
 
    
565
 
    def log_message(self, message):
 
489
 
 
490
    def log_message(self, message, level=1):
 
491
        """Log message formatted with timestamp"""
 
492
        if level < self.log_level:
 
493
            return
566
494
        timestamp = datetime.datetime.now().isoformat()
567
 
        self.log_message_raw(timestamp + ": " + message)
568
 
    
569
 
    def log_message_raw(self, markup):
 
495
        self.log_message_raw("{}: {}".format(timestamp, message),
 
496
                             level=level)
 
497
 
 
498
    def log_message_raw(self, markup, level=1):
570
499
        """Add a log message to the log buffer."""
 
500
        if level < self.log_level:
 
501
            return
571
502
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
572
 
        if (self.max_log_length
573
 
            and len(self.log) > self.max_log_length):
574
 
            del self.log[0:len(self.log)-self.max_log_length-1]
575
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
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-1]
 
506
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
576
507
                              coming_from="above")
577
508
        self.refresh()
578
 
    
 
509
 
579
510
    def toggle_log_display(self):
580
511
        """Toggle visibility of the log buffer."""
581
512
        self.log_visible = not self.log_visible
582
513
        self.rebuild()
583
 
        #self.log_message("Log visibility changed to: "
584
 
        #                 + unicode(self.log_visible))
585
 
    
 
514
        self.log_message("Log visibility changed to: {}"
 
515
                         .format(self.log_visible), level=0)
 
516
 
586
517
    def change_log_display(self):
587
518
        """Change type of log display.
588
519
        Currently, this toggles wrapping of text lines."""
592
523
            self.log_wrap = "clip"
593
524
        for textwidget in self.log:
594
525
            textwidget.set_wrap_mode(self.log_wrap)
595
 
        #self.log_message("Wrap mode: " + self.log_wrap)
596
 
    
597
 
    def find_and_remove_client(self, path, name):
 
526
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
527
                         level=0)
 
528
 
 
529
    def find_and_remove_client(self, path, interfaces):
598
530
        """Find a client by its object path and remove it.
599
 
        
600
 
        This is connected to the ClientRemoved signal from the
 
531
 
 
532
        This is connected to the InterfacesRemoved signal from the
601
533
        Mandos server object."""
 
534
        if client_interface not in interfaces:
 
535
            # Not a Mandos client object; ignore
 
536
            return
602
537
        try:
603
538
            client = self.clients_dict[path]
604
539
        except KeyError:
605
540
            # not found?
606
 
            self.log_message("Unknown client %r (%r) removed", name,
607
 
                             path)
 
541
            self.log_message("Unknown client {!r} removed"
 
542
                             .format(path))
608
543
            return
609
544
        client.delete()
610
 
    
611
 
    def add_new_client(self, path):
 
545
 
 
546
    def add_new_client(self, path, ifs_and_props):
 
547
        """Find a client by its object path and remove it.
 
548
 
 
549
        This is connected to the InterfacesAdded signal from the
 
550
        Mandos server object.
 
551
        """
 
552
        if client_interface not in ifs_and_props:
 
553
            # Not a Mandos client object; ignore
 
554
            return
612
555
        client_proxy_object = self.bus.get_object(self.busname, path)
613
 
        self.add_client(MandosClientWidget(server_proxy_object
614
 
                                           =self.mandos_serv,
615
 
                                           proxy_object
616
 
                                           =client_proxy_object,
617
 
                                           update_hook
618
 
                                           =self.refresh,
619
 
                                           delete_hook
620
 
                                           =self.remove_client,
621
 
                                           logger
622
 
                                           =self.log_message),
 
556
        self.add_client(MandosClientWidget(
 
557
            server_proxy_object=self.mandos_serv,
 
558
            proxy_object=client_proxy_object,
 
559
            update_hook=self.refresh,
 
560
            delete_hook=self.remove_client,
 
561
            logger=self.log_message,
 
562
            properties=dict(ifs_and_props[client_interface])),
623
563
                        path=path)
624
 
    
 
564
 
625
565
    def add_client(self, client, path=None):
626
566
        self.clients.append(client)
627
567
        if path is None:
628
568
            path = client.proxy.object_path
629
569
        self.clients_dict[path] = client
630
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
570
        self.clients.sort(key=lambda c: c.properties["Name"])
631
571
        self.refresh()
632
 
    
 
572
 
633
573
    def remove_client(self, client, path=None):
634
574
        self.clients.remove(client)
635
575
        if path is None:
636
576
            path = client.proxy.object_path
637
577
        del self.clients_dict[path]
638
 
        if not self.clients_dict:
639
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
640
 
            # is completely emptied, we need to recreate it.
641
 
            self.clients = urwid.SimpleListWalker([])
642
 
            self.rebuild()
643
578
        self.refresh()
644
 
    
 
579
 
645
580
    def refresh(self):
646
581
        """Redraw the screen"""
647
582
        canvas = self.topwidget.render(self.size, focus=True)
648
583
        self.screen.draw_screen(self.size, canvas)
649
 
    
 
584
 
650
585
    def run(self):
651
586
        """Start the main loop and exit when it's done."""
 
587
        self.bus = dbus.SystemBus()
 
588
        mandos_dbus_objc = self.bus.get_object(
 
589
            self.busname, "/", follow_name_owner_changes=True)
 
590
        self.mandos_serv = dbus.Interface(
 
591
            mandos_dbus_objc, dbus_interface=server_interface)
 
592
        try:
 
593
            mandos_clients = (self.mandos_serv
 
594
                              .GetAllClientsWithProperties())
 
595
            if not mandos_clients:
 
596
                self.log_message_raw(("bold",
 
597
                                      "Note: Server has no clients."))
 
598
        except dbus.exceptions.DBusException:
 
599
            self.log_message_raw(("bold",
 
600
                                  "Note: No Mandos server running."))
 
601
            mandos_clients = dbus.Dictionary()
 
602
 
 
603
        (self.mandos_serv
 
604
         .connect_to_signal("InterfacesRemoved",
 
605
                            self.find_and_remove_client,
 
606
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
607
                            byte_arrays=True))
 
608
        (self.mandos_serv
 
609
         .connect_to_signal("InterfacesAdded",
 
610
                            self.add_new_client,
 
611
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
612
                            byte_arrays=True))
 
613
        (self.mandos_serv
 
614
         .connect_to_signal("ClientNotFound",
 
615
                            self.client_not_found,
 
616
                            dbus_interface=server_interface,
 
617
                            byte_arrays=True))
 
618
        for path, client in mandos_clients.items():
 
619
            client_proxy_object = self.bus.get_object(self.busname,
 
620
                                                      path)
 
621
            self.add_client(MandosClientWidget(
 
622
                server_proxy_object=self.mandos_serv,
 
623
                proxy_object=client_proxy_object,
 
624
                properties=client,
 
625
                update_hook=self.refresh,
 
626
                delete_hook=self.remove_client,
 
627
                logger=self.log_message),
 
628
                            path=path)
 
629
 
652
630
        self.refresh()
653
 
        self._input_callback_tag = (gobject.io_add_watch
654
 
                                    (sys.stdin.fileno(),
655
 
                                     gobject.IO_IN,
656
 
                                     self.process_input))
 
631
        self._input_callback_tag = (
 
632
            GLib.io_add_watch(
 
633
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
 
634
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
 
635
                self.process_input))
657
636
        self.main_loop.run()
658
637
        # Main loop has finished, we should close everything now
659
 
        gobject.source_remove(self._input_callback_tag)
 
638
        GLib.source_remove(self._input_callback_tag)
660
639
        self.screen.stop()
661
 
    
 
640
 
662
641
    def stop(self):
663
642
        self.main_loop.quit()
664
 
    
 
643
 
665
644
    def process_input(self, source, condition):
666
645
        keys = self.screen.get_input()
667
 
        translations = { "ctrl n": "down",      # Emacs
668
 
                         "ctrl p": "up",        # Emacs
669
 
                         "ctrl v": "page down", # Emacs
670
 
                         "meta v": "page up",   # Emacs
671
 
                         " ": "page down",      # less
672
 
                         "f": "page down",      # less
673
 
                         "b": "page up",        # less
674
 
                         "j": "down",           # vi
675
 
                         "k": "up",             # vi
676
 
                         }
 
646
        translations = {"ctrl n": "down",       # Emacs
 
647
                        "ctrl p": "up",         # Emacs
 
648
                        "ctrl v": "page down",  # Emacs
 
649
                        "meta v": "page up",    # Emacs
 
650
                        " ": "page down",       # less
 
651
                        "f": "page down",       # less
 
652
                        "b": "page up",         # less
 
653
                        "j": "down",            # vi
 
654
                        "k": "up",              # vi
 
655
                        }
677
656
        for key in keys:
678
657
            try:
679
658
                key = translations[key]
680
659
            except KeyError:    # :-)
681
660
                pass
682
 
            
 
661
 
683
662
            if key == "q" or key == "Q":
684
663
                self.stop()
685
664
                break
686
665
            elif key == "window resize":
687
666
                self.size = self.screen.get_cols_rows()
688
667
                self.refresh()
689
 
            elif key == "\f":  # Ctrl-L
 
668
            elif key == "ctrl l":
 
669
                self.screen.clear()
690
670
                self.refresh()
691
671
            elif key == "l" or key == "D":
692
672
                self.toggle_log_display()
704
684
                                            "?: Help",
705
685
                                            "l: Log window toggle",
706
686
                                            "TAB: Switch window",
707
 
                                            "w: Wrap (log)"))))
 
687
                                            "w: Wrap (log lines)",
 
688
                                            "v: Toggle verbose log",
 
689
                                            ))))
708
690
                self.log_message_raw(("bold",
709
691
                                      "  "
710
692
                                      .join(("Clients:",
723
705
                else:
724
706
                    self.topwidget.set_focus(self.logbox)
725
707
                self.refresh()
726
 
            #elif (key == "end" or key == "meta >" or key == "G"
727
 
            #      or key == ">"):
728
 
            #    pass            # xxx end-of-buffer
729
 
            #elif (key == "home" or key == "meta <" or key == "g"
730
 
            #      or key == "<"):
731
 
            #    pass            # xxx beginning-of-buffer
732
 
            #elif key == "ctrl e" or key == "$":
733
 
            #    pass            # xxx move-end-of-line
734
 
            #elif key == "ctrl a" or key == "^":
735
 
            #    pass            # xxx move-beginning-of-line
736
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
737
 
            #    pass            # xxx left
738
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
739
 
            #    pass            # xxx right
740
 
            #elif key == "a":
741
 
            #    pass            # scroll up log
742
 
            #elif key == "z":
743
 
            #    pass            # scroll down log
 
708
            elif key == "v":
 
709
                if self.log_level == 0:
 
710
                    self.log_level = 1
 
711
                    self.log_message("Verbose mode: Off")
 
712
                else:
 
713
                    self.log_level = 0
 
714
                    self.log_message("Verbose mode: On")
 
715
            # elif (key == "end" or key == "meta >" or key == "G"
 
716
            #       or key == ">"):
 
717
            #     pass            # xxx end-of-buffer
 
718
            # elif (key == "home" or key == "meta <" or key == "g"
 
719
            #       or key == "<"):
 
720
            #     pass            # xxx beginning-of-buffer
 
721
            # elif key == "ctrl e" or key == "$":
 
722
            #     pass            # xxx move-end-of-line
 
723
            # elif key == "ctrl a" or key == "^":
 
724
            #     pass            # xxx move-beginning-of-line
 
725
            # elif key == "ctrl b" or key == "meta (" or key == "h":
 
726
            #     pass            # xxx left
 
727
            # elif key == "ctrl f" or key == "meta )" or key == "l":
 
728
            #     pass            # xxx right
 
729
            # elif key == "a":
 
730
            #     pass            # scroll up log
 
731
            # elif key == "z":
 
732
            #     pass            # scroll down log
744
733
            elif self.topwidget.selectable():
745
734
                self.topwidget.keypress(self.size, key)
746
735
                self.refresh()
747
736
        return True
748
737
 
 
738
 
749
739
ui = UserInterface()
750
740
try:
751
741
    ui.run()
752
742
except KeyboardInterrupt:
753
743
    ui.screen.stop()
754
 
except Exception, e:
755
 
    ui.log_message(unicode(e))
 
744
except Exception as e:
 
745
    ui.log_message(str(e))
756
746
    ui.screen.stop()
757
747
    raise