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  • Committer: Teddy Hogeborn
  • Date: 2019-10-20 03:39:15 UTC
  • Revision ID: teddy@recompile.se-20191020033915-ky2x47ynkc8d6e6v
Update Debian package standard-version to "4.4.1"

* debian/control (Standards-Version): Update to "4.4.1".

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