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  • Committer: Teddy Hogeborn
  • Date: 2014-07-12 12:54:13 UTC
  • Revision ID: teddy@recompile.se-20140712125413-2v66uak9da6kwjs5
mandos: The Debian package should prefer "ssh-client" over "fping".

* debian/control (mandos/Recommends): List "ssh-client" before
                                      "fping".

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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 © 2009-2014 Teddy Hogeborn
 
7
# Copyright © 2009-2014 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
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
17
46
 
18
47
import dbus
19
48
 
20
 
import UserList
21
 
 
22
49
import locale
23
50
 
24
 
locale.setlocale(locale.LC_ALL, u'')
 
51
if sys.version_info[0] == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
25
55
 
26
56
import logging
27
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
28
58
 
29
59
# Some useful constants
30
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
31
61
server_interface = domain + '.Mandos'
32
62
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)
 
63
version = "1.6.5"
 
64
 
 
65
def isoformat_to_datetime(iso):
 
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
 
67
    if not iso:
 
68
        return None
 
69
    d, t = iso.split("T", 1)
 
70
    year, month, day = d.split("-", 2)
 
71
    hour, minute, second = t.split(":", 2)
 
72
    second, fraction = divmod(float(second), 1)
 
73
    return datetime.datetime(int(year),
 
74
                             int(month),
 
75
                             int(day),
 
76
                             int(hour),
 
77
                             int(minute),
 
78
                             int(second),           # Whole seconds
 
79
                             int(fraction*1000000)) # Microseconds
42
80
 
43
81
class MandosClientPropertyCache(object):
44
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
45
83
    properties and calls a hook function when any of them are
46
84
    changed.
47
85
    """
48
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
49
87
        self.proxy = proxy_object # Mandos Client proxy object
50
 
        
51
 
        self.properties = dict()
52
 
        self.proxy.connect_to_signal(u"PropertyChanged",
53
 
                                     self.property_changed,
54
 
                                     client_interface,
55
 
                                     byte_arrays=True)
56
 
        
57
 
        self.properties.update(
58
 
            self.proxy.GetAll(client_interface,
59
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
60
 
        super(MandosClientPropertyCache, self).__init__(
61
 
            proxy_object=proxy_object, *args, **kwargs)
 
88
        self.properties = dict() if properties is None else properties
 
89
        self.property_changed_match = (
 
90
            self.proxy.connect_to_signal("PropertyChanged",
 
91
                                         self._property_changed,
 
92
                                         client_interface,
 
93
                                         byte_arrays=True))
 
94
        
 
95
        if properties is None:
 
96
            self.properties.update(
 
97
                self.proxy.GetAll(client_interface,
 
98
                                  dbus_interface
 
99
                                  = dbus.PROPERTIES_IFACE))
 
100
        
 
101
        super(MandosClientPropertyCache, self).__init__(**kwargs)
 
102
    
 
103
    def _property_changed(self, property, value):
 
104
        """Helper which takes positional arguments"""
 
105
        return self.property_changed(property=property, value=value)
62
106
    
63
107
    def property_changed(self, property=None, value=None):
64
108
        """This is called whenever we get a PropertyChanged signal
66
110
        """
67
111
        # Update properties dict with new value
68
112
        self.properties[property] = value
 
113
    
 
114
    def delete(self):
 
115
        self.property_changed_match.remove()
69
116
 
70
117
 
71
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
73
120
    """
74
121
    
75
122
    def __init__(self, server_proxy_object=None, update_hook=None,
76
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
123
                 delete_hook=None, logger=None, **kwargs):
77
124
        # Called on update
78
125
        self.update_hook = update_hook
79
126
        # Called on delete
83
130
        # Logger
84
131
        self.logger = logger
85
132
        
 
133
        self._update_timer_callback_tag = None
 
134
        
86
135
        # The widget shown normally
87
 
        self._text_widget = urwid.Text(u"")
 
136
        self._text_widget = urwid.Text("")
88
137
        # The widget shown when we have focus
89
 
        self._focus_text_widget = urwid.Text(u"")
90
 
        super(MandosClientWidget, self).__init__(
91
 
            update_hook=update_hook, delete_hook=delete_hook,
92
 
            *args, **kwargs)
 
138
        self._focus_text_widget = urwid.Text("")
 
139
        super(MandosClientWidget, self).__init__(**kwargs)
93
140
        self.update()
94
141
        self.opened = False
95
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
96
 
                                     self.checker_completed,
97
 
                                     client_interface,
98
 
                                     byte_arrays=True)
99
 
        self.proxy.connect_to_signal(u"CheckerStarted",
100
 
                                     self.checker_started,
101
 
                                     client_interface,
102
 
                                     byte_arrays=True)
103
 
        self.proxy.connect_to_signal(u"GotSecret",
104
 
                                     self.got_secret,
105
 
                                     client_interface,
106
 
                                     byte_arrays=True)
107
 
        self.proxy.connect_to_signal(u"NeedApproval",
108
 
                                     self.need_approval,
109
 
                                     client_interface,
110
 
                                     byte_arrays=True)
111
 
        self.proxy.connect_to_signal(u"Rejected",
112
 
                                     self.rejected,
113
 
                                     client_interface,
114
 
                                     byte_arrays=True)
 
142
        
 
143
        self.match_objects = (
 
144
            self.proxy.connect_to_signal("CheckerCompleted",
 
145
                                         self.checker_completed,
 
146
                                         client_interface,
 
147
                                         byte_arrays=True),
 
148
            self.proxy.connect_to_signal("CheckerStarted",
 
149
                                         self.checker_started,
 
150
                                         client_interface,
 
151
                                         byte_arrays=True),
 
152
            self.proxy.connect_to_signal("GotSecret",
 
153
                                         self.got_secret,
 
154
                                         client_interface,
 
155
                                         byte_arrays=True),
 
156
            self.proxy.connect_to_signal("NeedApproval",
 
157
                                         self.need_approval,
 
158
                                         client_interface,
 
159
                                         byte_arrays=True),
 
160
            self.proxy.connect_to_signal("Rejected",
 
161
                                         self.rejected,
 
162
                                         client_interface,
 
163
                                         byte_arrays=True))
 
164
        #self.logger('Created client {0}'
 
165
        #            .format(self.properties["Name"]))
 
166
    
 
167
    def using_timer(self, flag):
 
168
        """Call this method with True or False when timer should be
 
169
        activated or deactivated.
 
170
        """
 
171
        if flag and self._update_timer_callback_tag is None:
 
172
            # Will update the shown timer value every second
 
173
            self._update_timer_callback_tag = (gobject.timeout_add
 
174
                                               (1000,
 
175
                                                self.update_timer))
 
176
        elif not (flag or self._update_timer_callback_tag is None):
 
177
            gobject.source_remove(self._update_timer_callback_tag)
 
178
            self._update_timer_callback_tag = None
115
179
    
116
180
    def checker_completed(self, exitstatus, condition, command):
117
181
        if exitstatus == 0:
118
 
            #self.logger(u'Checker for client %s (command "%s")'
119
 
            #            u' was successful'
120
 
            #            % (self.properties[u"name"], command))
 
182
            self.update()
121
183
            return
 
184
        # Checker failed
122
185
        if os.WIFEXITED(condition):
123
 
            self.logger(u'Checker for client %s (command "%s")'
124
 
                        u' failed with exit code %s'
125
 
                        % (self.properties[u"name"], command,
126
 
                           os.WEXITSTATUS(condition)))
127
 
            return
128
 
        if os.WIFSIGNALED(condition):
129
 
            self.logger(u'Checker for client %s (command "%s")'
130
 
                        u' was killed by signal %s'
131
 
                        % (self.properties[u"name"], command,
132
 
                           os.WTERMSIG(condition)))
133
 
            return
134
 
        if os.WCOREDUMP(condition):
135
 
            self.logger(u'Checker for client %s (command "%s")'
136
 
                        u' dumped core'
137
 
                        % (self.properties[u"name"], command))
138
 
        self.logger(u'Checker for client %s completed mysteriously')
 
186
            self.logger('Checker for client {0} (command "{1}")'
 
187
                        ' failed with exit code {2}'
 
188
                        .format(self.properties["Name"], command,
 
189
                                os.WEXITSTATUS(condition)))
 
190
        elif os.WIFSIGNALED(condition):
 
191
            self.logger('Checker for client {0} (command "{1}") was'
 
192
                        ' killed by signal {2}'
 
193
                        .format(self.properties["Name"], command,
 
194
                                os.WTERMSIG(condition)))
 
195
        elif os.WCOREDUMP(condition):
 
196
            self.logger('Checker for client {0} (command "{1}")'
 
197
                        ' dumped core'
 
198
                        .format(self.properties["Name"], command))
 
199
        else:
 
200
            self.logger('Checker for client {0} completed'
 
201
                        ' mysteriously'
 
202
                        .format(self.properties["Name"]))
 
203
        self.update()
139
204
    
140
205
    def checker_started(self, command):
141
 
        #self.logger(u'Client %s started checker "%s"'
142
 
        #            % (self.properties[u"name"], unicode(command)))
 
206
        """Server signals that a checker started. This could be useful
 
207
           to log in the future. """
 
208
        #self.logger('Client {0} started checker "{1}"'
 
209
        #            .format(self.properties["Name"],
 
210
        #                    str(command)))
143
211
        pass
144
212
    
145
213
    def got_secret(self):
146
 
        self.logger(u'Client %s received its secret'
147
 
                    % self.properties[u"name"])
 
214
        self.logger('Client {0} received its secret'
 
215
                    .format(self.properties["Name"]))
148
216
    
149
217
    def need_approval(self, timeout, default):
150
218
        if not default:
151
 
            message = u'Client %s needs approval within %s seconds'
 
219
            message = 'Client {0} needs approval within {1} seconds'
152
220
        else:
153
 
            message = u'Client %s will get its secret in %s seconds'
154
 
        self.logger(message
155
 
                    % (self.properties[u"name"], timeout/1000))
 
221
            message = 'Client {0} will get its secret in {1} seconds'
 
222
        self.logger(message.format(self.properties["Name"],
 
223
                                   timeout/1000))
156
224
    
157
225
    def rejected(self, reason):
158
 
        self.logger(u'Client %s was rejected; reason: %s'
159
 
                    % (self.properties[u"name"], reason))
 
226
        self.logger('Client {0} was rejected; reason: {1}'
 
227
                    .format(self.properties["Name"], reason))
160
228
    
161
229
    def selectable(self):
162
230
        """Make this a "selectable" widget.
163
231
        This overrides the method from urwid.FlowWidget."""
164
232
        return True
165
233
    
166
 
    def rows(self, (maxcol,), focus=False):
 
234
    def rows(self, maxcolrow, focus=False):
167
235
        """How many rows this widget will occupy might depend on
168
236
        whether we have focus or not.
169
237
        This overrides the method from urwid.FlowWidget"""
170
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
238
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
171
239
    
172
240
    def current_widget(self, focus=False):
173
241
        if focus or self.opened:
177
245
    def update(self):
178
246
        "Called when what is visible on the screen should be updated."
179
247
        # How to add standout mode to a style
180
 
        with_standout = { u"normal": u"standout",
181
 
                          u"bold": u"bold-standout",
182
 
                          u"underline-blink":
183
 
                              u"underline-blink-standout",
184
 
                          u"bold-underline-blink":
185
 
                              u"bold-underline-blink-standout",
 
248
        with_standout = { "normal": "standout",
 
249
                          "bold": "bold-standout",
 
250
                          "underline-blink":
 
251
                              "underline-blink-standout",
 
252
                          "bold-underline-blink":
 
253
                              "bold-underline-blink-standout",
186
254
                          }
187
255
        
188
256
        # Rebuild focus and non-focus widgets using current properties
189
 
        self._text = (u'%(name)s: %(enabled)s'
190
 
                      % { u"name": self.properties[u"name"],
191
 
                          u"enabled":
192
 
                              (u"enabled"
193
 
                               if self.properties[u"enabled"]
194
 
                               else u"DISABLED")})
 
257
        
 
258
        # Base part of a client. Name!
 
259
        base = '{name}: '.format(name=self.properties["Name"])
 
260
        if not self.properties["Enabled"]:
 
261
            message = "DISABLED"
 
262
            self.using_timer(False)
 
263
        elif self.properties["ApprovalPending"]:
 
264
            timeout = datetime.timedelta(milliseconds
 
265
                                         = self.properties
 
266
                                         ["ApprovalDelay"])
 
267
            last_approval_request = isoformat_to_datetime(
 
268
                self.properties["LastApprovalRequest"])
 
269
            if last_approval_request is not None:
 
270
                timer = max(timeout - (datetime.datetime.utcnow()
 
271
                                       - last_approval_request),
 
272
                            datetime.timedelta())
 
273
            else:
 
274
                timer = datetime.timedelta()
 
275
            if self.properties["ApprovedByDefault"]:
 
276
                message = "Approval in {0}. (d)eny?"
 
277
            else:
 
278
                message = "Denial in {0}. (a)pprove?"
 
279
            message = message.format(str(timer).rsplit(".", 1)[0])
 
280
            self.using_timer(True)
 
281
        elif self.properties["LastCheckerStatus"] != 0:
 
282
            # When checker has failed, show timer until client expires
 
283
            expires = self.properties["Expires"]
 
284
            if expires == "":
 
285
                timer = datetime.timedelta(0)
 
286
            else:
 
287
                expires = (datetime.datetime.strptime
 
288
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
289
                timer = max(expires - datetime.datetime.utcnow(),
 
290
                            datetime.timedelta())
 
291
            message = ('A checker has failed! Time until client'
 
292
                       ' gets disabled: {0}'
 
293
                       .format(str(timer).rsplit(".", 1)[0]))
 
294
            self.using_timer(True)
 
295
        else:
 
296
            message = "enabled"
 
297
            self.using_timer(False)
 
298
        self._text = "{0}{1}".format(base, message)
 
299
        
195
300
        if not urwid.supports_unicode():
196
301
            self._text = self._text.encode("ascii", "replace")
197
 
        textlist = [(u"normal", self._text)]
 
302
        textlist = [("normal", self._text)]
198
303
        self._text_widget.set_text(textlist)
199
304
        self._focus_text_widget.set_text([(with_standout[text[0]],
200
305
                                           text[1])
208
313
        if self.update_hook is not None:
209
314
            self.update_hook()
210
315
    
211
 
    def delete(self):
 
316
    def update_timer(self):
 
317
        """called by gobject. Will indefinitely loop until
 
318
        gobject.source_remove() on tag is called"""
 
319
        self.update()
 
320
        return True             # Keep calling this
 
321
    
 
322
    def delete(self, **kwargs):
 
323
        if self._update_timer_callback_tag is not None:
 
324
            gobject.source_remove(self._update_timer_callback_tag)
 
325
            self._update_timer_callback_tag = None
 
326
        for match in self.match_objects:
 
327
            match.remove()
 
328
        self.match_objects = ()
212
329
        if self.delete_hook is not None:
213
330
            self.delete_hook(self)
 
331
        return super(MandosClientWidget, self).delete(**kwargs)
214
332
    
215
 
    def render(self, (maxcol,), focus=False):
 
333
    def render(self, maxcolrow, focus=False):
216
334
        """Render differently if we have focus.
217
335
        This overrides the method from urwid.FlowWidget"""
218
 
        return self.current_widget(focus).render((maxcol,),
 
336
        return self.current_widget(focus).render(maxcolrow,
219
337
                                                 focus=focus)
220
338
    
221
 
    def keypress(self, (maxcol,), key):
 
339
    def keypress(self, maxcolrow, key):
222
340
        """Handle keys.
223
341
        This overrides the method from urwid.FlowWidget"""
224
 
        if key == u"e" or key == u"+":
225
 
            self.proxy.Enable()
226
 
        elif key == u"d" or key == u"-":
227
 
            self.proxy.Disable()
228
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
342
        if key == "+":
 
343
            self.proxy.Enable(dbus_interface = client_interface,
 
344
                              ignore_reply=True)
 
345
        elif key == "-":
 
346
            self.proxy.Disable(dbus_interface = client_interface,
 
347
                               ignore_reply=True)
 
348
        elif key == "a":
 
349
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
350
                               dbus_interface = client_interface,
 
351
                               ignore_reply=True)
 
352
        elif key == "d":
 
353
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
354
                                  dbus_interface = client_interface,
 
355
                               ignore_reply=True)
 
356
        elif key == "R" or key == "_" or key == "ctrl k":
229
357
            self.server_proxy_object.RemoveClient(self.proxy
230
 
                                                  .object_path)
231
 
        elif key == u"s":
232
 
            self.proxy.StartChecker()
233
 
        elif key == u"S":
234
 
            self.proxy.StopChecker()
235
 
        elif key == u"C":
236
 
            self.proxy.CheckedOK()
 
358
                                                  .object_path,
 
359
                                                  ignore_reply=True)
 
360
        elif key == "s":
 
361
            self.proxy.StartChecker(dbus_interface = client_interface,
 
362
                                    ignore_reply=True)
 
363
        elif key == "S":
 
364
            self.proxy.StopChecker(dbus_interface = client_interface,
 
365
                                   ignore_reply=True)
 
366
        elif key == "C":
 
367
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
368
                                 ignore_reply=True)
237
369
        # xxx
238
 
#         elif key == u"p" or key == "=":
 
370
#         elif key == "p" or key == "=":
239
371
#             self.proxy.pause()
240
 
#         elif key == u"u" or key == ":":
 
372
#         elif key == "u" or key == ":":
241
373
#             self.proxy.unpause()
242
 
#         elif key == u"RET":
 
374
#         elif key == "RET":
243
375
#             self.open()
244
 
        elif key == u"+":
245
 
            self.proxy.Approve(True)
246
 
        elif key == u"-":
247
 
            self.proxy.Approve(False)
248
376
        else:
249
377
            return key
250
378
    
251
 
    def property_changed(self, property=None, value=None,
252
 
                         *args, **kwargs):
 
379
    def property_changed(self, property=None, **kwargs):
253
380
        """Call self.update() if old value is not new value.
254
381
        This overrides the method from MandosClientPropertyCache"""
255
 
        property_name = unicode(property)
 
382
        property_name = str(property)
256
383
        old_value = self.properties.get(property_name)
257
384
        super(MandosClientWidget, self).property_changed(
258
 
            property=property, value=value, *args, **kwargs)
 
385
            property=property, **kwargs)
259
386
        if self.properties.get(property_name) != old_value:
260
387
            self.update()
261
388
 
265
392
    "down" key presses, thus not allowing any containing widgets to
266
393
    use them as an excuse to shift focus away from this widget.
267
394
    """
268
 
    def keypress(self, (maxcol, maxrow), key):
269
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
270
 
        if ret in (u"up", u"down"):
 
395
    def keypress(self, *args, **kwargs):
 
396
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
397
        if ret in ("up", "down"):
271
398
            return
272
399
        return ret
273
400
 
282
409
        self.screen = urwid.curses_display.Screen()
283
410
        
284
411
        self.screen.register_palette((
285
 
                (u"normal",
286
 
                 u"default", u"default", None),
287
 
                (u"bold",
288
 
                 u"default", u"default", u"bold"),
289
 
                (u"underline-blink",
290
 
                 u"default", u"default", u"underline"),
291
 
                (u"standout",
292
 
                 u"default", u"default", u"standout"),
293
 
                (u"bold-underline-blink",
294
 
                 u"default", u"default", (u"bold", u"underline")),
295
 
                (u"bold-standout",
296
 
                 u"default", u"default", (u"bold", u"standout")),
297
 
                (u"underline-blink-standout",
298
 
                 u"default", u"default", (u"underline", u"standout")),
299
 
                (u"bold-underline-blink-standout",
300
 
                 u"default", u"default", (u"bold", u"underline",
301
 
                                          u"standout")),
 
412
                ("normal",
 
413
                 "default", "default", None),
 
414
                ("bold",
 
415
                 "bold", "default", "bold"),
 
416
                ("underline-blink",
 
417
                 "underline,blink", "default", "underline,blink"),
 
418
                ("standout",
 
419
                 "standout", "default", "standout"),
 
420
                ("bold-underline-blink",
 
421
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
422
                ("bold-standout",
 
423
                 "bold,standout", "default", "bold,standout"),
 
424
                ("underline-blink-standout",
 
425
                 "underline,blink,standout", "default",
 
426
                 "underline,blink,standout"),
 
427
                ("bold-underline-blink-standout",
 
428
                 "bold,underline,blink,standout", "default",
 
429
                 "bold,underline,blink,standout"),
302
430
                ))
303
431
        
304
432
        if urwid.supports_unicode():
305
 
            self.divider = u"─" # \u2500
306
 
            #self.divider = u"━" # \u2501
 
433
            self.divider = "─" # \u2500
 
434
            #self.divider = "━" # \u2501
307
435
        else:
308
 
            #self.divider = u"-" # \u002d
309
 
            self.divider = u"_" # \u005f
 
436
            #self.divider = "-" # \u002d
 
437
            self.divider = "_" # \u005f
310
438
        
311
439
        self.screen.start()
312
440
        
326
454
        # This keeps track of whether self.uilist currently has
327
455
        # self.logbox in it or not
328
456
        self.log_visible = True
329
 
        self.log_wrap = u"any"
 
457
        self.log_wrap = "any"
330
458
        
331
459
        self.rebuild()
332
 
        self.log_message_raw((u"bold",
333
 
                              u"Mandos Monitor version " + version))
334
 
        self.log_message_raw((u"bold",
335
 
                              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"))
336
464
        
337
465
        self.busname = domain + '.Mandos'
338
466
        self.main_loop = gobject.MainLoop()
339
 
        self.bus = dbus.SystemBus()
340
 
        mandos_dbus_objc = self.bus.get_object(
341
 
            self.busname, u"/", follow_name_owner_changes=True)
342
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
343
 
                                          dbus_interface
344
 
                                          = server_interface)
345
 
        try:
346
 
            mandos_clients = (self.mandos_serv
347
 
                              .GetAllClientsWithProperties())
348
 
        except dbus.exceptions.DBusException:
349
 
            mandos_clients = dbus.Dictionary()
350
 
        
351
 
        (self.mandos_serv
352
 
         .connect_to_signal(u"ClientRemoved",
353
 
                            self.find_and_remove_client,
354
 
                            dbus_interface=server_interface,
355
 
                            byte_arrays=True))
356
 
        (self.mandos_serv
357
 
         .connect_to_signal(u"ClientAdded",
358
 
                            self.add_new_client,
359
 
                            dbus_interface=server_interface,
360
 
                            byte_arrays=True))
361
 
        (self.mandos_serv
362
 
         .connect_to_signal(u"ClientNotFound",
363
 
                            self.client_not_found,
364
 
                            dbus_interface=server_interface,
365
 
                            byte_arrays=True))
366
 
        for path, client in mandos_clients.iteritems():
367
 
            client_proxy_object = self.bus.get_object(self.busname,
368
 
                                                      path)
369
 
            self.add_client(MandosClientWidget(server_proxy_object
370
 
                                               =self.mandos_serv,
371
 
                                               proxy_object
372
 
                                               =client_proxy_object,
373
 
                                               properties=client,
374
 
                                               update_hook
375
 
                                               =self.refresh,
376
 
                                               delete_hook
377
 
                                               =self.remove_client,
378
 
                                               logger
379
 
                                               =self.log_message),
380
 
                            path=path)
381
467
    
382
468
    def client_not_found(self, fingerprint, address):
383
 
        self.log_message((u"Client with address %s and fingerprint %s"
384
 
                          u" could not be found" % (address,
385
 
                                                    fingerprint)))
 
469
        self.log_message("Client with address {0} and fingerprint"
 
470
                         " {1} could not be found"
 
471
                         .format(address, fingerprint))
386
472
    
387
473
    def rebuild(self):
388
474
        """This rebuilds the User Interface.
389
475
        Call this when the widget layout needs to change"""
390
476
        self.uilist = []
391
477
        #self.uilist.append(urwid.ListBox(self.clients))
392
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
478
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
479
                                                          clients),
393
480
                                       #header=urwid.Divider(),
394
481
                                       header=None,
395
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
482
                                       footer=
 
483
                                       urwid.Divider(div_char=
 
484
                                                     self.divider)))
396
485
        if self.log_visible:
397
486
            self.uilist.append(self.logbox)
398
 
            pass
399
487
        self.topwidget = urwid.Pile(self.uilist)
400
488
    
401
489
    def log_message(self, message):
 
490
        """Log message formatted with timestamp"""
402
491
        timestamp = datetime.datetime.now().isoformat()
403
 
        self.log_message_raw(timestamp + u": " + message)
 
492
        self.log_message_raw(timestamp + ": " + message)
404
493
    
405
494
    def log_message_raw(self, markup):
406
495
        """Add a log message to the log buffer."""
409
498
            and len(self.log) > self.max_log_length):
410
499
            del self.log[0:len(self.log)-self.max_log_length-1]
411
500
        self.logbox.set_focus(len(self.logbox.body.contents),
412
 
                              coming_from=u"above")
 
501
                              coming_from="above")
413
502
        self.refresh()
414
503
    
415
504
    def toggle_log_display(self):
416
505
        """Toggle visibility of the log buffer."""
417
506
        self.log_visible = not self.log_visible
418
507
        self.rebuild()
419
 
        self.log_message(u"Log visibility changed to: "
420
 
                         + unicode(self.log_visible))
 
508
        #self.log_message("Log visibility changed to: "
 
509
        #                 + str(self.log_visible))
421
510
    
422
511
    def change_log_display(self):
423
512
        """Change type of log display.
424
513
        Currently, this toggles wrapping of text lines."""
425
 
        if self.log_wrap == u"clip":
426
 
            self.log_wrap = u"any"
 
514
        if self.log_wrap == "clip":
 
515
            self.log_wrap = "any"
427
516
        else:
428
 
            self.log_wrap = u"clip"
 
517
            self.log_wrap = "clip"
429
518
        for textwidget in self.log:
430
519
            textwidget.set_wrap_mode(self.log_wrap)
431
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
520
        #self.log_message("Wrap mode: " + self.log_wrap)
432
521
    
433
522
    def find_and_remove_client(self, path, name):
434
 
        """Find an client from its object path and remove it.
 
523
        """Find a client by its object path and remove it.
435
524
        
436
525
        This is connected to the ClientRemoved signal from the
437
526
        Mandos server object."""
439
528
            client = self.clients_dict[path]
440
529
        except KeyError:
441
530
            # not found?
 
531
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
532
                             .format(name, path))
442
533
            return
443
 
        self.remove_client(client, path)
 
534
        client.delete()
444
535
    
445
536
    def add_new_client(self, path):
446
537
        client_proxy_object = self.bus.get_object(self.busname, path)
461
552
        if path is None:
462
553
            path = client.proxy.object_path
463
554
        self.clients_dict[path] = client
464
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
555
        self.clients.sort(key=lambda c: c.properties["Name"])
465
556
        self.refresh()
466
557
    
467
558
    def remove_client(self, client, path=None):
469
560
        if path is None:
470
561
            path = client.proxy.object_path
471
562
        del self.clients_dict[path]
472
 
        if not self.clients_dict:
473
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
474
 
            # is completely emptied, we need to recreate it.
475
 
            self.clients = urwid.SimpleListWalker([])
476
 
            self.rebuild()
477
563
        self.refresh()
478
564
    
479
565
    def refresh(self):
483
569
    
484
570
    def run(self):
485
571
        """Start the main loop and exit when it's done."""
 
572
        self.bus = dbus.SystemBus()
 
573
        mandos_dbus_objc = self.bus.get_object(
 
574
            self.busname, "/", follow_name_owner_changes=True)
 
575
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
576
                                          dbus_interface
 
577
                                          = server_interface)
 
578
        try:
 
579
            mandos_clients = (self.mandos_serv
 
580
                              .GetAllClientsWithProperties())
 
581
            if not mandos_clients:
 
582
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
583
        except dbus.exceptions.DBusException:
 
584
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
585
            mandos_clients = dbus.Dictionary()
 
586
        
 
587
        (self.mandos_serv
 
588
         .connect_to_signal("ClientRemoved",
 
589
                            self.find_and_remove_client,
 
590
                            dbus_interface=server_interface,
 
591
                            byte_arrays=True))
 
592
        (self.mandos_serv
 
593
         .connect_to_signal("ClientAdded",
 
594
                            self.add_new_client,
 
595
                            dbus_interface=server_interface,
 
596
                            byte_arrays=True))
 
597
        (self.mandos_serv
 
598
         .connect_to_signal("ClientNotFound",
 
599
                            self.client_not_found,
 
600
                            dbus_interface=server_interface,
 
601
                            byte_arrays=True))
 
602
        for path, client in mandos_clients.items():
 
603
            client_proxy_object = self.bus.get_object(self.busname,
 
604
                                                      path)
 
605
            self.add_client(MandosClientWidget(server_proxy_object
 
606
                                               =self.mandos_serv,
 
607
                                               proxy_object
 
608
                                               =client_proxy_object,
 
609
                                               properties=client,
 
610
                                               update_hook
 
611
                                               =self.refresh,
 
612
                                               delete_hook
 
613
                                               =self.remove_client,
 
614
                                               logger
 
615
                                               =self.log_message),
 
616
                            path=path)
 
617
        
486
618
        self.refresh()
487
619
        self._input_callback_tag = (gobject.io_add_watch
488
620
                                    (sys.stdin.fileno(),
498
630
    
499
631
    def process_input(self, source, condition):
500
632
        keys = self.screen.get_input()
501
 
        translations = { u"ctrl n": u"down",      # Emacs
502
 
                         u"ctrl p": u"up",        # Emacs
503
 
                         u"ctrl v": u"page down", # Emacs
504
 
                         u"meta v": u"page up",   # Emacs
505
 
                         u" ": u"page down",      # less
506
 
                         u"f": u"page down",      # less
507
 
                         u"b": u"page up",        # less
508
 
                         u"j": u"down",           # vi
509
 
                         u"k": u"up",             # vi
 
633
        translations = { "ctrl n": "down",      # Emacs
 
634
                         "ctrl p": "up",        # Emacs
 
635
                         "ctrl v": "page down", # Emacs
 
636
                         "meta v": "page up",   # Emacs
 
637
                         " ": "page down",      # less
 
638
                         "f": "page down",      # less
 
639
                         "b": "page up",        # less
 
640
                         "j": "down",           # vi
 
641
                         "k": "up",             # vi
510
642
                         }
511
643
        for key in keys:
512
644
            try:
514
646
            except KeyError:    # :-)
515
647
                pass
516
648
            
517
 
            if key == u"q" or key == u"Q":
 
649
            if key == "q" or key == "Q":
518
650
                self.stop()
519
651
                break
520
 
            elif key == u"window resize":
 
652
            elif key == "window resize":
521
653
                self.size = self.screen.get_cols_rows()
522
654
                self.refresh()
523
 
            elif key == u"\f":  # Ctrl-L
 
655
            elif key == "\f":  # Ctrl-L
524
656
                self.refresh()
525
 
            elif key == u"l" or key == u"D":
 
657
            elif key == "l" or key == "D":
526
658
                self.toggle_log_display()
527
659
                self.refresh()
528
 
            elif key == u"w" or key == u"i":
 
660
            elif key == "w" or key == "i":
529
661
                self.change_log_display()
530
662
                self.refresh()
531
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
663
            elif key == "?" or key == "f1" or key == "esc":
532
664
                if not self.log_visible:
533
665
                    self.log_visible = True
534
666
                    self.rebuild()
535
 
                self.log_message_raw((u"bold",
536
 
                                      u"  ".
537
 
                                      join((u"q: Quit",
538
 
                                            u"?: Help",
539
 
                                            u"l: Log window toggle",
540
 
                                            u"TAB: Switch window",
541
 
                                            u"w: Wrap (log)"))))
542
 
                self.log_message_raw((u"bold",
543
 
                                      u"  "
544
 
                                      .join((u"Clients:",
545
 
                                             u"e: Enable",
546
 
                                             u"d: Disable",
547
 
                                             u"r: Remove",
548
 
                                             u"s: Start new checker",
549
 
                                             u"S: Stop checker",
550
 
                                             u"C: Checker OK"))))
 
667
                self.log_message_raw(("bold",
 
668
                                      "  ".
 
669
                                      join(("q: Quit",
 
670
                                            "?: Help",
 
671
                                            "l: Log window toggle",
 
672
                                            "TAB: Switch window",
 
673
                                            "w: Wrap (log)"))))
 
674
                self.log_message_raw(("bold",
 
675
                                      "  "
 
676
                                      .join(("Clients:",
 
677
                                             "+: Enable",
 
678
                                             "-: Disable",
 
679
                                             "R: Remove",
 
680
                                             "s: Start new checker",
 
681
                                             "S: Stop checker",
 
682
                                             "C: Checker OK",
 
683
                                             "a: Approve",
 
684
                                             "d: Deny"))))
551
685
                self.refresh()
552
 
            elif key == u"tab":
 
686
            elif key == "tab":
553
687
                if self.topwidget.get_focus() is self.logbox:
554
688
                    self.topwidget.set_focus(0)
555
689
                else:
556
690
                    self.topwidget.set_focus(self.logbox)
557
691
                self.refresh()
558
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
559
 
            #      or key == u">"):
 
692
            #elif (key == "end" or key == "meta >" or key == "G"
 
693
            #      or key == ">"):
560
694
            #    pass            # xxx end-of-buffer
561
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
562
 
            #      or key == u"<"):
 
695
            #elif (key == "home" or key == "meta <" or key == "g"
 
696
            #      or key == "<"):
563
697
            #    pass            # xxx beginning-of-buffer
564
 
            #elif key == u"ctrl e" or key == u"$":
 
698
            #elif key == "ctrl e" or key == "$":
565
699
            #    pass            # xxx move-end-of-line
566
 
            #elif key == u"ctrl a" or key == u"^":
 
700
            #elif key == "ctrl a" or key == "^":
567
701
            #    pass            # xxx move-beginning-of-line
568
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
702
            #elif key == "ctrl b" or key == "meta (" or key == "h":
569
703
            #    pass            # xxx left
570
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
704
            #elif key == "ctrl f" or key == "meta )" or key == "l":
571
705
            #    pass            # xxx right
572
 
            #elif key == u"a":
 
706
            #elif key == "a":
573
707
            #    pass            # scroll up log
574
 
            #elif key == u"z":
 
708
            #elif key == "z":
575
709
            #    pass            # scroll down log
576
710
            elif self.topwidget.selectable():
577
711
                self.topwidget.keypress(self.size, key)
581
715
ui = UserInterface()
582
716
try:
583
717
    ui.run()
584
 
except Exception, e:
585
 
    ui.log_message(unicode(e))
 
718
except KeyboardInterrupt:
 
719
    ui.screen.stop()
 
720
except Exception as e:
 
721
    ui.log_message(str(e))
586
722
    ui.screen.stop()
587
723
    raise