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  • Committer: Teddy Hogeborn
  • Date: 2016-06-23 19:46:41 UTC
  • Revision ID: teddy@recompile.se-20160623194641-dsokb8mz3wki07mv
Fix permissions of /etc/mandos/plugin-helpers.

* debian/rules (override_dh_fixperms-arch): Also exclude
  "etc/mandos/plugin-helpers" from changes by dh_fixperms.
* debian/mandos-client.postinst: Fix the permissions of
  "/etc/mandos/plugin-helpers" for those systems which had a fresh
  install of an older version.

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Lines of Context:
mandos-monitor
1
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
 
3
# 
 
4
# Mandos Monitor - Control and monitor the Mandos server
 
5
# 
 
6
# Copyright © 2009-2016 Teddy Hogeborn
 
7
# Copyright © 2009-2016 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
 
11
# the Free Software Foundation, either version 3 of the License, or
 
12
# (at your option) any later version.
 
13
#
 
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
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
17
#     GNU General Public License for more details.
 
18
# 
 
19
# You should have received a copy of the GNU General Public License
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
# 
 
23
# Contact the authors at <mandos@recompile.se>.
 
24
# 
3
25
 
4
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
5
32
 
6
33
import sys
7
34
import os
8
 
import signal
9
35
 
10
36
import datetime
11
37
 
13
39
import urwid
14
40
 
15
41
from dbus.mainloop.glib import DBusGMainLoop
16
 
import gobject
 
42
from gi.repository import GLib
17
43
 
18
44
import dbus
19
45
 
20
 
import UserList
21
 
 
22
46
import locale
23
47
 
24
 
locale.setlocale(locale.LC_ALL, u'')
 
48
if sys.version_info.major == 2:
 
49
    str = unicode
 
50
 
 
51
locale.setlocale(locale.LC_ALL, '')
25
52
 
26
53
import logging
27
54
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
55
 
29
56
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
57
domain = 'se.recompile'
31
58
server_interface = domain + '.Mandos'
32
59
client_interface = domain + '.Mandos.Client'
33
 
version = "1.0.15"
34
 
 
35
 
# Always run in monochrome mode
36
 
urwid.curses_display.curses.has_colors = lambda : False
37
 
 
38
 
# Urwid doesn't support blinking, but we want it.  Since we have no
39
 
# use for underline on its own, we make underline also always blink.
40
 
urwid.curses_display.curses.A_UNDERLINE |= (
41
 
    urwid.curses_display.curses.A_BLINK)
 
60
version = "1.7.9"
 
61
 
 
62
try:
 
63
    dbus.OBJECT_MANAGER_IFACE
 
64
except AttributeError:
 
65
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
42
66
 
43
67
def isoformat_to_datetime(iso):
44
68
    "Parse an ISO 8601 date string to a datetime.datetime()"
45
69
    if not iso:
46
70
        return None
47
 
    d, t = iso.split(u"T", 1)
48
 
    year, month, day = d.split(u"-", 2)
49
 
    hour, minute, second = t.split(u":", 2)
 
71
    d, t = iso.split("T", 1)
 
72
    year, month, day = d.split("-", 2)
 
73
    hour, minute, second = t.split(":", 2)
50
74
    second, fraction = divmod(float(second), 1)
51
75
    return datetime.datetime(int(year),
52
76
                             int(month),
61
85
    properties and calls a hook function when any of them are
62
86
    changed.
63
87
    """
64
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
88
    def __init__(self, proxy_object=None, properties=None, **kwargs):
65
89
        self.proxy = proxy_object # Mandos Client proxy object
66
 
        
67
 
        self.properties = dict()
68
 
        self.proxy.connect_to_signal(u"PropertyChanged",
69
 
                                     self.property_changed,
70
 
                                     client_interface,
71
 
                                     byte_arrays=True)
72
 
        
73
 
        self.properties.update(
74
 
            self.proxy.GetAll(client_interface,
75
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
76
 
 
77
 
        #XXX This break good super behaviour!
78
 
#        super(MandosClientPropertyCache, self).__init__(
79
 
#            *args, **kwargs)
 
90
        self.properties = dict() if properties is None else properties
 
91
        self.property_changed_match = (
 
92
            self.proxy.connect_to_signal("PropertiesChanged",
 
93
                                         self.properties_changed,
 
94
                                         dbus.PROPERTIES_IFACE,
 
95
                                         byte_arrays=True))
 
96
        
 
97
        if properties is None:
 
98
            self.properties.update(
 
99
                self.proxy.GetAll(client_interface,
 
100
                                  dbus_interface
 
101
                                  = dbus.PROPERTIES_IFACE))
 
102
        
 
103
        super(MandosClientPropertyCache, self).__init__(**kwargs)
80
104
    
81
 
    def property_changed(self, property=None, value=None):
82
 
        """This is called whenever we get a PropertyChanged signal
83
 
        It updates the changed property in the "properties" dict.
 
105
    def properties_changed(self, interface, properties, invalidated):
 
106
        """This is called whenever we get a PropertiesChanged signal
 
107
        It updates the changed properties in the "properties" dict.
84
108
        """
85
109
        # Update properties dict with new value
86
 
        self.properties[property] = value
 
110
        if interface == client_interface:
 
111
            self.properties.update(properties)
 
112
    
 
113
    def delete(self):
 
114
        self.property_changed_match.remove()
87
115
 
88
116
 
89
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
91
119
    """
92
120
    
93
121
    def __init__(self, server_proxy_object=None, update_hook=None,
94
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
122
                 delete_hook=None, logger=None, **kwargs):
95
123
        # Called on update
96
124
        self.update_hook = update_hook
97
125
        # Called on delete
102
130
        self.logger = logger
103
131
        
104
132
        self._update_timer_callback_tag = None
105
 
        self.last_checker_failed = False
106
133
        
107
134
        # The widget shown normally
108
 
        self._text_widget = urwid.Text(u"")
 
135
        self._text_widget = urwid.Text("")
109
136
        # The widget shown when we have focus
110
 
        self._focus_text_widget = urwid.Text(u"")
111
 
        super(MandosClientWidget, self).__init__(
112
 
            update_hook=update_hook, delete_hook=delete_hook,
113
 
            *args, **kwargs)
 
137
        self._focus_text_widget = urwid.Text("")
 
138
        super(MandosClientWidget, self).__init__(**kwargs)
114
139
        self.update()
115
140
        self.opened = False
116
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
117
 
                                     self.checker_completed,
118
 
                                     client_interface,
119
 
                                     byte_arrays=True)
120
 
        self.proxy.connect_to_signal(u"CheckerStarted",
121
 
                                     self.checker_started,
122
 
                                     client_interface,
123
 
                                     byte_arrays=True)
124
 
        self.proxy.connect_to_signal(u"GotSecret",
125
 
                                     self.got_secret,
126
 
                                     client_interface,
127
 
                                     byte_arrays=True)
128
 
        self.proxy.connect_to_signal(u"NeedApproval",
129
 
                                     self.need_approval,
130
 
                                     client_interface,
131
 
                                     byte_arrays=True)
132
 
        self.proxy.connect_to_signal(u"Rejected",
133
 
                                     self.rejected,
134
 
                                     client_interface,
135
 
                                     byte_arrays=True)
136
 
        last_checked_ok = isoformat_to_datetime(self.properties
137
 
                                                [u"LastCheckedOK"])
138
 
        if last_checked_ok is None:
139
 
            self.last_checker_failed = True
140
 
        else:
141
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
142
 
                                         - last_checked_ok)
143
 
                                        > datetime.timedelta
144
 
                                        (milliseconds=
145
 
                                         self.properties
146
 
                                         [u"Interval"]))
147
 
        if self.last_checker_failed:
148
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
141
        
 
142
        self.match_objects = (
 
143
            self.proxy.connect_to_signal("CheckerCompleted",
 
144
                                         self.checker_completed,
 
145
                                         client_interface,
 
146
                                         byte_arrays=True),
 
147
            self.proxy.connect_to_signal("CheckerStarted",
 
148
                                         self.checker_started,
 
149
                                         client_interface,
 
150
                                         byte_arrays=True),
 
151
            self.proxy.connect_to_signal("GotSecret",
 
152
                                         self.got_secret,
 
153
                                         client_interface,
 
154
                                         byte_arrays=True),
 
155
            self.proxy.connect_to_signal("NeedApproval",
 
156
                                         self.need_approval,
 
157
                                         client_interface,
 
158
                                         byte_arrays=True),
 
159
            self.proxy.connect_to_signal("Rejected",
 
160
                                         self.rejected,
 
161
                                         client_interface,
 
162
                                         byte_arrays=True))
 
163
        self.logger('Created client {}'
 
164
                    .format(self.properties["Name"]), level=0)
 
165
    
 
166
    def using_timer(self, flag):
 
167
        """Call this method with True or False when timer should be
 
168
        activated or deactivated.
 
169
        """
 
170
        if flag and self._update_timer_callback_tag is None:
 
171
            # Will update the shown timer value every second
 
172
            self._update_timer_callback_tag = (GLib.timeout_add
149
173
                                               (1000,
150
174
                                                self.update_timer))
 
175
        elif not (flag or self._update_timer_callback_tag is None):
 
176
            GLib.source_remove(self._update_timer_callback_tag)
 
177
            self._update_timer_callback_tag = None
151
178
    
152
179
    def checker_completed(self, exitstatus, condition, command):
153
180
        if exitstatus == 0:
154
 
            if self.last_checker_failed:
155
 
                self.last_checker_failed = False
156
 
                gobject.source_remove(self._update_timer_callback_tag)
157
 
                self._update_timer_callback_tag = None
158
 
            #self.logger(u'Checker for client %s (command "%s")'
159
 
            #            u' was successful'
160
 
            #            % (self.properties[u"Name"], command))
 
181
            self.logger('Checker for client {} (command "{}")'
 
182
                        ' succeeded'.format(self.properties["Name"],
 
183
                                            command), level=0)
161
184
            self.update()
162
185
            return
163
186
        # Checker failed
164
 
        if not self.last_checker_failed:
165
 
            self.last_checker_failed = True
166
 
            self._update_timer_callback_tag = (gobject.timeout_add
167
 
                                               (1000,
168
 
                                                self.update_timer))
169
187
        if os.WIFEXITED(condition):
170
 
            self.logger(u'Checker for client %s (command "%s")'
171
 
                        u' failed with exit code %s'
172
 
                        % (self.properties[u"Name"], command,
173
 
                           os.WEXITSTATUS(condition)))
 
188
            self.logger('Checker for client {} (command "{}") failed'
 
189
                        ' with exit code {}'
 
190
                        .format(self.properties["Name"], command,
 
191
                                os.WEXITSTATUS(condition)))
174
192
        elif os.WIFSIGNALED(condition):
175
 
            self.logger(u'Checker for client %s (command "%s")'
176
 
                        u' was killed by signal %s'
177
 
                        % (self.properties[u"Name"], command,
178
 
                           os.WTERMSIG(condition)))
179
 
        elif os.WCOREDUMP(condition):
180
 
            self.logger(u'Checker for client %s (command "%s")'
181
 
                        u' dumped core'
182
 
                        % (self.properties[u"Name"], command))
183
 
        else:
184
 
            self.logger(u'Checker for client %s completed'
185
 
                        u' mysteriously')
 
193
            self.logger('Checker for client {} (command "{}") was'
 
194
                        ' killed by signal {}'
 
195
                        .format(self.properties["Name"], command,
 
196
                                os.WTERMSIG(condition)))
186
197
        self.update()
187
198
    
188
199
    def checker_started(self, command):
189
 
        #self.logger(u'Client %s started checker "%s"'
190
 
        #            % (self.properties[u"Name"], unicode(command)))
191
 
        pass
 
200
        """Server signals that a checker started."""
 
201
        self.logger('Client {} started checker "{}"'
 
202
                    .format(self.properties["Name"],
 
203
                            command), level=0)
192
204
    
193
205
    def got_secret(self):
194
 
        self.last_checker_failed = False
195
 
        self.logger(u'Client %s received its secret'
196
 
                    % self.properties[u"Name"])
 
206
        self.logger('Client {} received its secret'
 
207
                    .format(self.properties["Name"]))
197
208
    
198
209
    def need_approval(self, timeout, default):
199
210
        if not default:
200
 
            message = u'Client %s needs approval within %s seconds'
 
211
            message = 'Client {} needs approval within {} seconds'
201
212
        else:
202
 
            message = u'Client %s will get its secret in %s seconds'
203
 
        self.logger(message
204
 
                    % (self.properties[u"Name"], timeout/1000))
 
213
            message = 'Client {} will get its secret in {} seconds'
 
214
        self.logger(message.format(self.properties["Name"],
 
215
                                   timeout/1000))
205
216
    
206
217
    def rejected(self, reason):
207
 
        self.logger(u'Client %s was rejected; reason: %s'
208
 
                    % (self.properties[u"Name"], reason))
 
218
        self.logger('Client {} was rejected; reason: {}'
 
219
                    .format(self.properties["Name"], reason))
209
220
    
210
221
    def selectable(self):
211
222
        """Make this a "selectable" widget.
212
223
        This overrides the method from urwid.FlowWidget."""
213
224
        return True
214
225
    
215
 
    def rows(self, (maxcol,), focus=False):
 
226
    def rows(self, maxcolrow, focus=False):
216
227
        """How many rows this widget will occupy might depend on
217
228
        whether we have focus or not.
218
229
        This overrides the method from urwid.FlowWidget"""
219
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
220
231
    
221
232
    def current_widget(self, focus=False):
222
233
        if focus or self.opened:
226
237
    def update(self):
227
238
        "Called when what is visible on the screen should be updated."
228
239
        # How to add standout mode to a style
229
 
        with_standout = { u"normal": u"standout",
230
 
                          u"bold": u"bold-standout",
231
 
                          u"underline-blink":
232
 
                              u"underline-blink-standout",
233
 
                          u"bold-underline-blink":
234
 
                              u"bold-underline-blink-standout",
 
240
        with_standout = { "normal": "standout",
 
241
                          "bold": "bold-standout",
 
242
                          "underline-blink":
 
243
                              "underline-blink-standout",
 
244
                          "bold-underline-blink":
 
245
                              "bold-underline-blink-standout",
235
246
                          }
236
 
 
 
247
        
237
248
        # Rebuild focus and non-focus widgets using current properties
238
 
 
 
249
        
239
250
        # Base part of a client. Name!
240
 
        base = (u'%(name)s: '
241
 
                      % {u"name": self.properties[u"Name"]})
242
 
        if not self.properties[u"Enabled"]:
243
 
            message = u"DISABLED"
244
 
        elif self.properties[u"ApprovalPending"]:
245
 
            if self.properties[u"ApprovedByDefault"]:
246
 
                message = u"Connection established to client. (d)eny?"
247
 
            else:
248
 
                message = u"Seeks approval to send secret. (a)pprove?"
249
 
        elif self.last_checker_failed:
 
251
        base = '{name}: '.format(name=self.properties["Name"])
 
252
        if not self.properties["Enabled"]:
 
253
            message = "DISABLED"
 
254
            self.using_timer(False)
 
255
        elif self.properties["ApprovalPending"]:
250
256
            timeout = datetime.timedelta(milliseconds
251
257
                                         = self.properties
252
 
                                         [u"Timeout"])
253
 
            last_ok = isoformat_to_datetime(
254
 
                max((self.properties[u"LastCheckedOK"]
255
 
                     or self.properties[u"Created"]),
256
 
                    self.properties[u"LastEnabled"]))
257
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
258
 
            message = (u'A checker has failed! Time until client'
259
 
                       u' gets diabled: %s'
260
 
                           % unicode(timer).rsplit(".", 1)[0])
 
258
                                         ["ApprovalDelay"])
 
259
            last_approval_request = isoformat_to_datetime(
 
260
                self.properties["LastApprovalRequest"])
 
261
            if last_approval_request is not None:
 
262
                timer = max(timeout - (datetime.datetime.utcnow()
 
263
                                       - last_approval_request),
 
264
                            datetime.timedelta())
 
265
            else:
 
266
                timer = datetime.timedelta()
 
267
            if self.properties["ApprovedByDefault"]:
 
268
                message = "Approval in {}. (d)eny?"
 
269
            else:
 
270
                message = "Denial in {}. (a)pprove?"
 
271
            message = message.format(str(timer).rsplit(".", 1)[0])
 
272
            self.using_timer(True)
 
273
        elif self.properties["LastCheckerStatus"] != 0:
 
274
            # When checker has failed, show timer until client expires
 
275
            expires = self.properties["Expires"]
 
276
            if expires == "":
 
277
                timer = datetime.timedelta(0)
 
278
            else:
 
279
                expires = (datetime.datetime.strptime
 
280
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
281
                timer = max(expires - datetime.datetime.utcnow(),
 
282
                            datetime.timedelta())
 
283
            message = ('A checker has failed! Time until client'
 
284
                       ' gets disabled: {}'
 
285
                       .format(str(timer).rsplit(".", 1)[0]))
 
286
            self.using_timer(True)
261
287
        else:
262
 
            message = u"enabled"
263
 
        self._text = "%s%s" % (base, message)
264
 
            
 
288
            message = "enabled"
 
289
            self.using_timer(False)
 
290
        self._text = "{}{}".format(base, message)
 
291
        
265
292
        if not urwid.supports_unicode():
266
293
            self._text = self._text.encode("ascii", "replace")
267
 
        textlist = [(u"normal", self._text)]
 
294
        textlist = [("normal", self._text)]
268
295
        self._text_widget.set_text(textlist)
269
296
        self._focus_text_widget.set_text([(with_standout[text[0]],
270
297
                                           text[1])
279
306
            self.update_hook()
280
307
    
281
308
    def update_timer(self):
282
 
        "called by gobject"
 
309
        """called by GLib. Will indefinitely loop until
 
310
        GLib.source_remove() on tag is called
 
311
        """
283
312
        self.update()
284
313
        return True             # Keep calling this
285
314
    
286
 
    def delete(self):
 
315
    def delete(self, **kwargs):
287
316
        if self._update_timer_callback_tag is not None:
288
 
            gobject.source_remove(self._update_timer_callback_tag)
 
317
            GLib.source_remove(self._update_timer_callback_tag)
289
318
            self._update_timer_callback_tag = None
 
319
        for match in self.match_objects:
 
320
            match.remove()
 
321
        self.match_objects = ()
290
322
        if self.delete_hook is not None:
291
323
            self.delete_hook(self)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
292
325
    
293
 
    def render(self, (maxcol,), focus=False):
 
326
    def render(self, maxcolrow, focus=False):
294
327
        """Render differently if we have focus.
295
328
        This overrides the method from urwid.FlowWidget"""
296
 
        return self.current_widget(focus).render((maxcol,),
 
329
        return self.current_widget(focus).render(maxcolrow,
297
330
                                                 focus=focus)
298
331
    
299
 
    def keypress(self, (maxcol,), key):
 
332
    def keypress(self, maxcolrow, key):
300
333
        """Handle keys.
301
334
        This overrides the method from urwid.FlowWidget"""
302
 
        if key == u"+":
303
 
            self.proxy.Enable(dbus_interface = client_interface)
304
 
        elif key == u"-":
305
 
            self.proxy.Disable(dbus_interface = client_interface)
306
 
        elif key == u"a":
 
335
        if key == "+":
 
336
            self.proxy.Set(client_interface, "Enabled",
 
337
                           dbus.Boolean(True), ignore_reply = True,
 
338
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
339
        elif key == "-":
 
340
            self.proxy.Set(client_interface, "Enabled", False,
 
341
                           ignore_reply = True,
 
342
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
343
        elif key == "a":
307
344
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
308
 
                               dbus_interface = client_interface)
309
 
        elif key == u"d":
 
345
                               dbus_interface = client_interface,
 
346
                               ignore_reply=True)
 
347
        elif key == "d":
310
348
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
311
 
                                  dbus_interface = client_interface)
312
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
349
                                  dbus_interface = client_interface,
 
350
                               ignore_reply=True)
 
351
        elif key == "R" or key == "_" or key == "ctrl k":
313
352
            self.server_proxy_object.RemoveClient(self.proxy
314
 
                                                  .object_path)
315
 
        elif key == u"s":
316
 
            self.proxy.StartChecker(dbus_interface = client_interface)
317
 
        elif key == u"S":
318
 
            self.proxy.StopChecker(dbus_interface = client_interface)
319
 
        elif key == u"C":
320
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
353
                                                  .object_path,
 
354
                                                  ignore_reply=True)
 
355
        elif key == "s":
 
356
            self.proxy.Set(client_interface, "CheckerRunning",
 
357
                           dbus.Boolean(True), ignore_reply = True,
 
358
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
359
        elif key == "S":
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
                           dbus.Boolean(False), ignore_reply = True,
 
362
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
363
        elif key == "C":
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
                                 ignore_reply=True)
321
366
        # xxx
322
 
#         elif key == u"p" or key == "=":
 
367
#         elif key == "p" or key == "=":
323
368
#             self.proxy.pause()
324
 
#         elif key == u"u" or key == ":":
 
369
#         elif key == "u" or key == ":":
325
370
#             self.proxy.unpause()
326
 
#         elif key == u"RET":
 
371
#         elif key == "RET":
327
372
#             self.open()
328
 
#        elif key == u"+":
329
 
#            self.proxy.Approve(True)
330
 
#        elif key == u"-":
331
 
#            self.proxy.Approve(False)
332
373
        else:
333
374
            return key
334
375
    
335
 
    def property_changed(self, property=None, value=None,
336
 
                         *args, **kwargs):
337
 
        """Call self.update() if old value is not new value.
 
376
    def properties_changed(self, interface, properties, invalidated):
 
377
        """Call self.update() if any properties changed.
338
378
        This overrides the method from MandosClientPropertyCache"""
339
 
        property_name = unicode(property)
340
 
        old_value = self.properties.get(property_name)
341
 
        super(MandosClientWidget, self).property_changed(
342
 
            property=property, value=value, *args, **kwargs)
343
 
        if self.properties.get(property_name) != old_value:
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
 
381
        super(MandosClientWidget, self).properties_changed(
 
382
            interface, properties, invalidated)
 
383
        if any(old_values[key] != self.properties.get(key)
 
384
               for key in old_values):
344
385
            self.update()
345
386
 
346
387
 
349
390
    "down" key presses, thus not allowing any containing widgets to
350
391
    use them as an excuse to shift focus away from this widget.
351
392
    """
352
 
    def keypress(self, (maxcol, maxrow), key):
353
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
354
 
                                                        maxrow), key)
355
 
        if ret in (u"up", u"down"):
 
393
    def keypress(self, *args, **kwargs):
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
395
        if ret in ("up", "down"):
356
396
            return
357
397
        return ret
358
398
 
361
401
    """This is the entire user interface - the whole screen
362
402
    with boxes, lists of client widgets, etc.
363
403
    """
364
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
365
405
        DBusGMainLoop(set_as_default=True)
366
406
        
367
407
        self.screen = urwid.curses_display.Screen()
368
408
        
369
409
        self.screen.register_palette((
370
 
                (u"normal",
371
 
                 u"default", u"default", None),
372
 
                (u"bold",
373
 
                 u"default", u"default", u"bold"),
374
 
                (u"underline-blink",
375
 
                 u"default", u"default", u"underline"),
376
 
                (u"standout",
377
 
                 u"default", u"default", u"standout"),
378
 
                (u"bold-underline-blink",
379
 
                 u"default", u"default", (u"bold", u"underline")),
380
 
                (u"bold-standout",
381
 
                 u"default", u"default", (u"bold", u"standout")),
382
 
                (u"underline-blink-standout",
383
 
                 u"default", u"default", (u"underline", u"standout")),
384
 
                (u"bold-underline-blink-standout",
385
 
                 u"default", u"default", (u"bold", u"underline",
386
 
                                          u"standout")),
 
410
                ("normal",
 
411
                 "default", "default", None),
 
412
                ("bold",
 
413
                 "bold", "default", "bold"),
 
414
                ("underline-blink",
 
415
                 "underline,blink", "default", "underline,blink"),
 
416
                ("standout",
 
417
                 "standout", "default", "standout"),
 
418
                ("bold-underline-blink",
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
420
                ("bold-standout",
 
421
                 "bold,standout", "default", "bold,standout"),
 
422
                ("underline-blink-standout",
 
423
                 "underline,blink,standout", "default",
 
424
                 "underline,blink,standout"),
 
425
                ("bold-underline-blink-standout",
 
426
                 "bold,underline,blink,standout", "default",
 
427
                 "bold,underline,blink,standout"),
387
428
                ))
388
429
        
389
430
        if urwid.supports_unicode():
390
 
            self.divider = u"─" # \u2500
391
 
            #self.divider = u"━" # \u2501
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
392
433
        else:
393
 
            #self.divider = u"-" # \u002d
394
 
            self.divider = u"_" # \u005f
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
395
436
        
396
437
        self.screen.start()
397
438
        
404
445
        self.log = []
405
446
        self.max_log_length = max_log_length
406
447
        
 
448
        self.log_level = log_level
 
449
        
407
450
        # We keep a reference to the log widget so we can remove it
408
451
        # from the ListWalker without it getting destroyed
409
452
        self.logbox = ConstrainedListBox(self.log)
411
454
        # This keeps track of whether self.uilist currently has
412
455
        # self.logbox in it or not
413
456
        self.log_visible = True
414
 
        self.log_wrap = u"any"
 
457
        self.log_wrap = "any"
415
458
        
416
459
        self.rebuild()
417
 
        self.log_message_raw((u"bold",
418
 
                              u"Mandos Monitor version " + version))
419
 
        self.log_message_raw((u"bold",
420
 
                              u"q: Quit  ?: Help"))
 
460
        self.log_message_raw(("bold",
 
461
                              "Mandos Monitor version " + version))
 
462
        self.log_message_raw(("bold",
 
463
                              "q: Quit  ?: Help"))
421
464
        
422
465
        self.busname = domain + '.Mandos'
423
 
        self.main_loop = gobject.MainLoop()
424
 
        self.bus = dbus.SystemBus()
425
 
        mandos_dbus_objc = self.bus.get_object(
426
 
            self.busname, u"/", follow_name_owner_changes=True)
427
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
428
 
                                          dbus_interface
429
 
                                          = server_interface)
430
 
        try:
431
 
            mandos_clients = (self.mandos_serv
432
 
                              .GetAllClientsWithProperties())
433
 
        except dbus.exceptions.DBusException:
434
 
            mandos_clients = dbus.Dictionary()
435
 
        
436
 
        (self.mandos_serv
437
 
         .connect_to_signal(u"ClientRemoved",
438
 
                            self.find_and_remove_client,
439
 
                            dbus_interface=server_interface,
440
 
                            byte_arrays=True))
441
 
        (self.mandos_serv
442
 
         .connect_to_signal(u"ClientAdded",
443
 
                            self.add_new_client,
444
 
                            dbus_interface=server_interface,
445
 
                            byte_arrays=True))
446
 
        (self.mandos_serv
447
 
         .connect_to_signal(u"ClientNotFound",
448
 
                            self.client_not_found,
449
 
                            dbus_interface=server_interface,
450
 
                            byte_arrays=True))
451
 
        for path, client in mandos_clients.iteritems():
452
 
            client_proxy_object = self.bus.get_object(self.busname,
453
 
                                                      path)
454
 
            self.add_client(MandosClientWidget(server_proxy_object
455
 
                                               =self.mandos_serv,
456
 
                                               proxy_object
457
 
                                               =client_proxy_object,
458
 
                                               properties=client,
459
 
                                               update_hook
460
 
                                               =self.refresh,
461
 
                                               delete_hook
462
 
                                               =self.remove_client,
463
 
                                               logger
464
 
                                               =self.log_message),
465
 
                            path=path)
 
466
        self.main_loop = GLib.MainLoop()
466
467
    
467
468
    def client_not_found(self, fingerprint, address):
468
 
        self.log_message((u"Client with address %s and fingerprint %s"
469
 
                          u" could not be found" % (address,
470
 
                                                    fingerprint)))
 
469
        self.log_message("Client with address {} and fingerprint {}"
 
470
                         " could not be found"
 
471
                         .format(address, fingerprint))
471
472
    
472
473
    def rebuild(self):
473
474
        """This rebuilds the User Interface.
483
484
                                                     self.divider)))
484
485
        if self.log_visible:
485
486
            self.uilist.append(self.logbox)
486
 
            pass
487
487
        self.topwidget = urwid.Pile(self.uilist)
488
488
    
489
 
    def log_message(self, message):
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
490
493
        timestamp = datetime.datetime.now().isoformat()
491
 
        self.log_message_raw(timestamp + u": " + message)
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
495
                             level=level)
492
496
    
493
 
    def log_message_raw(self, markup):
 
497
    def log_message_raw(self, markup, level=1):
494
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
495
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
496
502
        if (self.max_log_length
497
503
            and len(self.log) > self.max_log_length):
498
504
            del self.log[0:len(self.log)-self.max_log_length-1]
499
505
        self.logbox.set_focus(len(self.logbox.body.contents),
500
 
                              coming_from=u"above")
 
506
                              coming_from="above")
501
507
        self.refresh()
502
508
    
503
509
    def toggle_log_display(self):
504
510
        """Toggle visibility of the log buffer."""
505
511
        self.log_visible = not self.log_visible
506
512
        self.rebuild()
507
 
        self.log_message(u"Log visibility changed to: "
508
 
                         + unicode(self.log_visible))
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
509
515
    
510
516
    def change_log_display(self):
511
517
        """Change type of log display.
512
518
        Currently, this toggles wrapping of text lines."""
513
 
        if self.log_wrap == u"clip":
514
 
            self.log_wrap = u"any"
 
519
        if self.log_wrap == "clip":
 
520
            self.log_wrap = "any"
515
521
        else:
516
 
            self.log_wrap = u"clip"
 
522
            self.log_wrap = "clip"
517
523
        for textwidget in self.log:
518
524
            textwidget.set_wrap_mode(self.log_wrap)
519
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
520
527
    
521
 
    def find_and_remove_client(self, path, name):
522
 
        """Find an client from its object path and remove it.
 
528
    def find_and_remove_client(self, path, interfaces):
 
529
        """Find a client by its object path and remove it.
523
530
        
524
 
        This is connected to the ClientRemoved signal from the
 
531
        This is connected to the InterfacesRemoved signal from the
525
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
526
536
        try:
527
537
            client = self.clients_dict[path]
528
538
        except KeyError:
529
539
            # not found?
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
530
542
            return
531
 
        self.remove_client(client, path)
 
543
        client.delete()
532
544
    
533
 
    def add_new_client(self, path):
 
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
534
554
        client_proxy_object = self.bus.get_object(self.busname, path)
535
555
        self.add_client(MandosClientWidget(server_proxy_object
536
556
                                           =self.mandos_serv,
541
561
                                           delete_hook
542
562
                                           =self.remove_client,
543
563
                                           logger
544
 
                                           =self.log_message),
 
564
                                           =self.log_message,
 
565
                                           properties
 
566
                                           = dict(ifs_and_props[
 
567
                                               client_interface])),
545
568
                        path=path)
546
569
    
547
570
    def add_client(self, client, path=None):
549
572
        if path is None:
550
573
            path = client.proxy.object_path
551
574
        self.clients_dict[path] = client
552
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
575
        self.clients.sort(key=lambda c: c.properties["Name"])
553
576
        self.refresh()
554
577
    
555
578
    def remove_client(self, client, path=None):
557
580
        if path is None:
558
581
            path = client.proxy.object_path
559
582
        del self.clients_dict[path]
560
 
        if not self.clients_dict:
561
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
562
 
            # is completely emptied, we need to recreate it.
563
 
            self.clients = urwid.SimpleListWalker([])
564
 
            self.rebuild()
565
583
        self.refresh()
566
584
    
567
585
    def refresh(self):
571
589
    
572
590
    def run(self):
573
591
        """Start the main loop and exit when it's done."""
 
592
        self.bus = dbus.SystemBus()
 
593
        mandos_dbus_objc = self.bus.get_object(
 
594
            self.busname, "/", follow_name_owner_changes=True)
 
595
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
596
                                          dbus_interface
 
597
                                          = server_interface)
 
598
        try:
 
599
            mandos_clients = (self.mandos_serv
 
600
                              .GetAllClientsWithProperties())
 
601
            if not mandos_clients:
 
602
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
603
        except dbus.exceptions.DBusException:
 
604
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
605
            mandos_clients = dbus.Dictionary()
 
606
        
 
607
        (self.mandos_serv
 
608
         .connect_to_signal("InterfacesRemoved",
 
609
                            self.find_and_remove_client,
 
610
                            dbus_interface
 
611
                            = dbus.OBJECT_MANAGER_IFACE,
 
612
                            byte_arrays=True))
 
613
        (self.mandos_serv
 
614
         .connect_to_signal("InterfacesAdded",
 
615
                            self.add_new_client,
 
616
                            dbus_interface
 
617
                            = dbus.OBJECT_MANAGER_IFACE,
 
618
                            byte_arrays=True))
 
619
        (self.mandos_serv
 
620
         .connect_to_signal("ClientNotFound",
 
621
                            self.client_not_found,
 
622
                            dbus_interface=server_interface,
 
623
                            byte_arrays=True))
 
624
        for path, client in mandos_clients.items():
 
625
            client_proxy_object = self.bus.get_object(self.busname,
 
626
                                                      path)
 
627
            self.add_client(MandosClientWidget(server_proxy_object
 
628
                                               =self.mandos_serv,
 
629
                                               proxy_object
 
630
                                               =client_proxy_object,
 
631
                                               properties=client,
 
632
                                               update_hook
 
633
                                               =self.refresh,
 
634
                                               delete_hook
 
635
                                               =self.remove_client,
 
636
                                               logger
 
637
                                               =self.log_message),
 
638
                            path=path)
 
639
        
574
640
        self.refresh()
575
 
        self._input_callback_tag = (gobject.io_add_watch
 
641
        self._input_callback_tag = (GLib.io_add_watch
576
642
                                    (sys.stdin.fileno(),
577
 
                                     gobject.IO_IN,
 
643
                                     GLib.IO_IN,
578
644
                                     self.process_input))
579
645
        self.main_loop.run()
580
646
        # Main loop has finished, we should close everything now
581
 
        gobject.source_remove(self._input_callback_tag)
 
647
        GLib.source_remove(self._input_callback_tag)
582
648
        self.screen.stop()
583
649
    
584
650
    def stop(self):
586
652
    
587
653
    def process_input(self, source, condition):
588
654
        keys = self.screen.get_input()
589
 
        translations = { u"ctrl n": u"down",      # Emacs
590
 
                         u"ctrl p": u"up",        # Emacs
591
 
                         u"ctrl v": u"page down", # Emacs
592
 
                         u"meta v": u"page up",   # Emacs
593
 
                         u" ": u"page down",      # less
594
 
                         u"f": u"page down",      # less
595
 
                         u"b": u"page up",        # less
596
 
                         u"j": u"down",           # vi
597
 
                         u"k": u"up",             # vi
 
655
        translations = { "ctrl n": "down",      # Emacs
 
656
                         "ctrl p": "up",        # Emacs
 
657
                         "ctrl v": "page down", # Emacs
 
658
                         "meta v": "page up",   # Emacs
 
659
                         " ": "page down",      # less
 
660
                         "f": "page down",      # less
 
661
                         "b": "page up",        # less
 
662
                         "j": "down",           # vi
 
663
                         "k": "up",             # vi
598
664
                         }
599
665
        for key in keys:
600
666
            try:
602
668
            except KeyError:    # :-)
603
669
                pass
604
670
            
605
 
            if key == u"q" or key == u"Q":
 
671
            if key == "q" or key == "Q":
606
672
                self.stop()
607
673
                break
608
 
            elif key == u"window resize":
 
674
            elif key == "window resize":
609
675
                self.size = self.screen.get_cols_rows()
610
676
                self.refresh()
611
 
            elif key == u"\f":  # Ctrl-L
 
677
            elif key == "ctrl l":
 
678
                self.screen.clear()
612
679
                self.refresh()
613
 
            elif key == u"l" or key == u"D":
 
680
            elif key == "l" or key == "D":
614
681
                self.toggle_log_display()
615
682
                self.refresh()
616
 
            elif key == u"w" or key == u"i":
 
683
            elif key == "w" or key == "i":
617
684
                self.change_log_display()
618
685
                self.refresh()
619
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
686
            elif key == "?" or key == "f1" or key == "esc":
620
687
                if not self.log_visible:
621
688
                    self.log_visible = True
622
689
                    self.rebuild()
623
 
                self.log_message_raw((u"bold",
624
 
                                      u"  ".
625
 
                                      join((u"q: Quit",
626
 
                                            u"?: Help",
627
 
                                            u"l: Log window toggle",
628
 
                                            u"TAB: Switch window",
629
 
                                            u"w: Wrap (log)"))))
630
 
                self.log_message_raw((u"bold",
631
 
                                      u"  "
632
 
                                      .join((u"Clients:",
633
 
                                             u"+: Enable",
634
 
                                             u"-: Disable",
635
 
                                             u"r: Remove",
636
 
                                             u"s: Start new checker",
637
 
                                             u"S: Stop checker",
638
 
                                             u"C: Checker OK",
639
 
                                             u"a: Approve",
640
 
                                             u"d: Deny"))))
 
690
                self.log_message_raw(("bold",
 
691
                                      "  ".
 
692
                                      join(("q: Quit",
 
693
                                            "?: Help",
 
694
                                            "l: Log window toggle",
 
695
                                            "TAB: Switch window",
 
696
                                            "w: Wrap (log lines)",
 
697
                                            "v: Toggle verbose log",
 
698
                                            ))))
 
699
                self.log_message_raw(("bold",
 
700
                                      "  "
 
701
                                      .join(("Clients:",
 
702
                                             "+: Enable",
 
703
                                             "-: Disable",
 
704
                                             "R: Remove",
 
705
                                             "s: Start new checker",
 
706
                                             "S: Stop checker",
 
707
                                             "C: Checker OK",
 
708
                                             "a: Approve",
 
709
                                             "d: Deny"))))
641
710
                self.refresh()
642
 
            elif key == u"tab":
 
711
            elif key == "tab":
643
712
                if self.topwidget.get_focus() is self.logbox:
644
713
                    self.topwidget.set_focus(0)
645
714
                else:
646
715
                    self.topwidget.set_focus(self.logbox)
647
716
                self.refresh()
648
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
649
 
            #      or key == u">"):
 
717
            elif key == "v":
 
718
                if self.log_level == 0:
 
719
                    self.log_level = 1
 
720
                    self.log_message("Verbose mode: Off")
 
721
                else:
 
722
                    self.log_level = 0
 
723
                    self.log_message("Verbose mode: On")
 
724
            #elif (key == "end" or key == "meta >" or key == "G"
 
725
            #      or key == ">"):
650
726
            #    pass            # xxx end-of-buffer
651
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
652
 
            #      or key == u"<"):
 
727
            #elif (key == "home" or key == "meta <" or key == "g"
 
728
            #      or key == "<"):
653
729
            #    pass            # xxx beginning-of-buffer
654
 
            #elif key == u"ctrl e" or key == u"$":
 
730
            #elif key == "ctrl e" or key == "$":
655
731
            #    pass            # xxx move-end-of-line
656
 
            #elif key == u"ctrl a" or key == u"^":
 
732
            #elif key == "ctrl a" or key == "^":
657
733
            #    pass            # xxx move-beginning-of-line
658
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
734
            #elif key == "ctrl b" or key == "meta (" or key == "h":
659
735
            #    pass            # xxx left
660
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
736
            #elif key == "ctrl f" or key == "meta )" or key == "l":
661
737
            #    pass            # xxx right
662
 
            #elif key == u"a":
 
738
            #elif key == "a":
663
739
            #    pass            # scroll up log
664
 
            #elif key == u"z":
 
740
            #elif key == "z":
665
741
            #    pass            # scroll down log
666
742
            elif self.topwidget.selectable():
667
743
                self.topwidget.keypress(self.size, key)
673
749
    ui.run()
674
750
except KeyboardInterrupt:
675
751
    ui.screen.stop()
676
 
except Exception, e:
677
 
    ui.log_message(unicode(e))
 
752
except Exception as e:
 
753
    ui.log_message(str(e))
678
754
    ui.screen.stop()
679
755
    raise