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  • Committer: Teddy Hogeborn
  • Date: 2014-07-25 23:54:03 UTC
  • mto: (237.7.304 trunk)
  • mto: This revision was merged to the branch mainline in revision 321.
  • Revision ID: teddy@recompile.se-20140725235403-8sx708g7rosge1ei
Bug fix to allow Python 3; that is, version 3 of the "python" package.

* debian/control (Package: mandos/Depends): Bug fix: Change from
                                            "python (<= 2.7)" to
                                            "python (>= 2.7)",
                                            allowing "/usr/bin/python"
                                            to be Python 3.

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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 © 2009-2014 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.major == 2:
 
52
    str = unicode
 
53
 
 
54
locale.setlocale(locale.LC_ALL, '')
 
55
 
 
56
import logging
 
57
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
25
58
 
26
59
# Some useful constants
27
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
28
61
server_interface = domain + '.Mandos'
29
62
client_interface = domain + '.Mandos.Client'
30
 
version = "1.0.14"
31
 
 
32
 
# Always run in monochrome mode
33
 
urwid.curses_display.curses.has_colors = lambda : False
34
 
 
35
 
# Urwid doesn't support blinking, but we want it.  Since we have no
36
 
# use for underline on its own, we make underline also always blink.
37
 
urwid.curses_display.curses.A_UNDERLINE |= (
38
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.6.7"
39
64
 
40
65
def isoformat_to_datetime(iso):
41
66
    "Parse an ISO 8601 date string to a datetime.datetime()"
42
67
    if not iso:
43
68
        return None
44
 
    d, t = iso.split(u"T", 1)
45
 
    year, month, day = d.split(u"-", 2)
46
 
    hour, minute, second = t.split(u":", 2)
 
69
    d, t = iso.split("T", 1)
 
70
    year, month, day = d.split("-", 2)
 
71
    hour, minute, second = t.split(":", 2)
47
72
    second, fraction = divmod(float(second), 1)
48
73
    return datetime.datetime(int(year),
49
74
                             int(month),
58
83
    properties and calls a hook function when any of them are
59
84
    changed.
60
85
    """
61
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
62
87
        self.proxy = proxy_object # Mandos Client proxy object
63
 
        
64
 
        self.properties = dict()
65
 
        self.proxy.connect_to_signal(u"PropertyChanged",
66
 
                                     self.property_changed,
67
 
                                     client_interface,
68
 
                                     byte_arrays=True)
69
 
        
70
 
        self.properties.update(
71
 
            self.proxy.GetAll(client_interface,
72
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
73
 
        super(MandosClientPropertyCache, self).__init__(
74
 
            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)
75
106
    
76
107
    def property_changed(self, property=None, value=None):
77
108
        """This is called whenever we get a PropertyChanged signal
79
110
        """
80
111
        # Update properties dict with new value
81
112
        self.properties[property] = value
 
113
    
 
114
    def delete(self):
 
115
        self.property_changed_match.remove()
82
116
 
83
117
 
84
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
86
120
    """
87
121
    
88
122
    def __init__(self, server_proxy_object=None, update_hook=None,
89
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
123
                 delete_hook=None, logger=None, **kwargs):
90
124
        # Called on update
91
125
        self.update_hook = update_hook
92
126
        # Called on delete
97
131
        self.logger = logger
98
132
        
99
133
        self._update_timer_callback_tag = None
100
 
        self.last_checker_failed = False
101
134
        
102
135
        # The widget shown normally
103
 
        self._text_widget = urwid.Text(u"")
 
136
        self._text_widget = urwid.Text("")
104
137
        # The widget shown when we have focus
105
 
        self._focus_text_widget = urwid.Text(u"")
106
 
        super(MandosClientWidget, self).__init__(
107
 
            update_hook=update_hook, delete_hook=delete_hook,
108
 
            *args, **kwargs)
 
138
        self._focus_text_widget = urwid.Text("")
 
139
        super(MandosClientWidget, self).__init__(**kwargs)
109
140
        self.update()
110
141
        self.opened = False
111
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
112
 
                                     self.checker_completed,
113
 
                                     client_interface,
114
 
                                     byte_arrays=True)
115
 
        self.proxy.connect_to_signal(u"CheckerStarted",
116
 
                                     self.checker_started,
117
 
                                     client_interface,
118
 
                                     byte_arrays=True)
119
 
        self.proxy.connect_to_signal(u"GotSecret",
120
 
                                     self.got_secret,
121
 
                                     client_interface,
122
 
                                     byte_arrays=True)
123
 
        self.proxy.connect_to_signal(u"Rejected",
124
 
                                     self.rejected,
125
 
                                     client_interface,
126
 
                                     byte_arrays=True)
127
 
        last_checked_ok = isoformat_to_datetime(self.properties
128
 
                                                ["last_checked_ok"])
129
 
        if last_checked_ok is None:
130
 
            self.last_checker_failed = True
131
 
        else:
132
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
133
 
                                         - last_checked_ok)
134
 
                                        > datetime.timedelta
135
 
                                        (milliseconds=
136
 
                                         self.properties["interval"]))
137
 
        if self.last_checker_failed:
 
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 {}'
 
165
                    .format(self.properties["Name"]), level=0)
 
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
138
173
            self._update_timer_callback_tag = (gobject.timeout_add
139
174
                                               (1000,
140
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
141
179
    
142
180
    def checker_completed(self, exitstatus, condition, command):
143
181
        if exitstatus == 0:
144
 
            if self.last_checker_failed:
145
 
                self.last_checker_failed = False
146
 
                gobject.source_remove(self._update_timer_callback_tag)
147
 
                self._update_timer_callback_tag = None
148
 
            self.logger(u'Checker for client %s (command "%s")'
149
 
                        u' was successful'
150
 
                        % (self.properties[u"name"], command))
 
182
            self.logger('Checker for client {} (command "{}")'
 
183
                        ' succeeded'.format(self.properties["Name"],
 
184
                                            command), level=0)
151
185
            self.update()
152
186
            return
153
187
        # Checker failed
154
 
        if not self.last_checker_failed:
155
 
            self.last_checker_failed = True
156
 
            self._update_timer_callback_tag = (gobject.timeout_add
157
 
                                               (1000,
158
 
                                                self.update_timer))
159
188
        if os.WIFEXITED(condition):
160
 
            self.logger(u'Checker for client %s (command "%s")'
161
 
                        u' failed with exit code %s'
162
 
                        % (self.properties[u"name"], command,
163
 
                           os.WEXITSTATUS(condition)))
 
189
            self.logger('Checker for client {} (command "{}") failed'
 
190
                        ' with exit code {}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
164
193
        elif os.WIFSIGNALED(condition):
165
 
            self.logger(u'Checker for client %s (command "%s")'
166
 
                        u' was killed by signal %s'
167
 
                        % (self.properties[u"name"], command,
168
 
                           os.WTERMSIG(condition)))
 
194
            self.logger('Checker for client {} (command "{}") was'
 
195
                        ' killed by signal {}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
169
198
        elif os.WCOREDUMP(condition):
170
 
            self.logger(u'Checker for client %s (command "%s")'
171
 
                        u' dumped core'
172
 
                        % (self.properties[u"name"], command))
 
199
            self.logger('Checker for client {} (command "{}") dumped'
 
200
                        ' core'.format(self.properties["Name"],
 
201
                                       command))
173
202
        else:
174
 
            self.logger(u'Checker for client %s completed mysteriously')
 
203
            self.logger('Checker for client {} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
175
206
        self.update()
176
207
    
177
208
    def checker_started(self, command):
178
 
        self.logger(u'Client %s started checker "%s"'
179
 
                    % (self.properties[u"name"], unicode(command)))
 
209
        """Server signals that a checker started."""
 
210
        self.logger('Client {} started checker "{}"'
 
211
                    .format(self.properties["Name"],
 
212
                            command), level=0)
180
213
    
181
214
    def got_secret(self):
182
 
        self.logger(u'Client %s received its secret'
183
 
                    % self.properties[u"name"])
184
 
    
185
 
    def rejected(self):
186
 
        self.logger(u'Client %s was rejected'
187
 
                    % self.properties[u"name"])
 
215
        self.logger('Client {} received its secret'
 
216
                    .format(self.properties["Name"]))
 
217
    
 
218
    def need_approval(self, timeout, default):
 
219
        if not default:
 
220
            message = 'Client {} needs approval within {} seconds'
 
221
        else:
 
222
            message = 'Client {} will get its secret in {} seconds'
 
223
        self.logger(message.format(self.properties["Name"],
 
224
                                   timeout/1000))
 
225
    
 
226
    def rejected(self, reason):
 
227
        self.logger('Client {} was rejected; reason: {}'
 
228
                    .format(self.properties["Name"], reason))
188
229
    
189
230
    def selectable(self):
190
231
        """Make this a "selectable" widget.
191
232
        This overrides the method from urwid.FlowWidget."""
192
233
        return True
193
234
    
194
 
    def rows(self, (maxcol,), focus=False):
 
235
    def rows(self, maxcolrow, focus=False):
195
236
        """How many rows this widget will occupy might depend on
196
237
        whether we have focus or not.
197
238
        This overrides the method from urwid.FlowWidget"""
198
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
239
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
199
240
    
200
241
    def current_widget(self, focus=False):
201
242
        if focus or self.opened:
205
246
    def update(self):
206
247
        "Called when what is visible on the screen should be updated."
207
248
        # How to add standout mode to a style
208
 
        with_standout = { u"normal": u"standout",
209
 
                          u"bold": u"bold-standout",
210
 
                          u"underline-blink":
211
 
                              u"underline-blink-standout",
212
 
                          u"bold-underline-blink":
213
 
                              u"bold-underline-blink-standout",
 
249
        with_standout = { "normal": "standout",
 
250
                          "bold": "bold-standout",
 
251
                          "underline-blink":
 
252
                              "underline-blink-standout",
 
253
                          "bold-underline-blink":
 
254
                              "bold-underline-blink-standout",
214
255
                          }
215
256
        
216
257
        # Rebuild focus and non-focus widgets using current properties
217
 
        self._text = (u'%(name)s: %(enabled)s%(timer)s'
218
 
                      % { u"name": self.properties[u"name"],
219
 
                          u"enabled":
220
 
                              (u"enabled"
221
 
                               if self.properties[u"enabled"]
222
 
                               else u"DISABLED"),
223
 
                          u"timer": (unicode(datetime.timedelta
224
 
                                             (milliseconds =
225
 
                                              self.properties
226
 
                                              [u"timeout"])
227
 
                                             - (datetime.datetime
228
 
                                                .utcnow()
229
 
                                                - isoformat_to_datetime
230
 
                                                (max((self.properties
231
 
                                                 ["last_checked_ok"]
232
 
                                                 or
233
 
                                                 self.properties
234
 
                                                 ["created"]),
235
 
                                                    self.properties[u"last_enabled"]))))
236
 
                                     if (self.last_checker_failed
237
 
                                         and self.properties
238
 
                                         [u"enabled"])
239
 
                                     else u"")})
 
258
        
 
259
        # Base part of a client. Name!
 
260
        base = '{name}: '.format(name=self.properties["Name"])
 
261
        if not self.properties["Enabled"]:
 
262
            message = "DISABLED"
 
263
            self.using_timer(False)
 
264
        elif self.properties["ApprovalPending"]:
 
265
            timeout = datetime.timedelta(milliseconds
 
266
                                         = self.properties
 
267
                                         ["ApprovalDelay"])
 
268
            last_approval_request = isoformat_to_datetime(
 
269
                self.properties["LastApprovalRequest"])
 
270
            if last_approval_request is not None:
 
271
                timer = max(timeout - (datetime.datetime.utcnow()
 
272
                                       - last_approval_request),
 
273
                            datetime.timedelta())
 
274
            else:
 
275
                timer = datetime.timedelta()
 
276
            if self.properties["ApprovedByDefault"]:
 
277
                message = "Approval in {}. (d)eny?"
 
278
            else:
 
279
                message = "Denial in {}. (a)pprove?"
 
280
            message = message.format(str(timer).rsplit(".", 1)[0])
 
281
            self.using_timer(True)
 
282
        elif self.properties["LastCheckerStatus"] != 0:
 
283
            # When checker has failed, show timer until client expires
 
284
            expires = self.properties["Expires"]
 
285
            if expires == "":
 
286
                timer = datetime.timedelta(0)
 
287
            else:
 
288
                expires = (datetime.datetime.strptime
 
289
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
290
                timer = max(expires - datetime.datetime.utcnow(),
 
291
                            datetime.timedelta())
 
292
            message = ('A checker has failed! Time until client'
 
293
                       ' gets disabled: {}'
 
294
                       .format(str(timer).rsplit(".", 1)[0]))
 
295
            self.using_timer(True)
 
296
        else:
 
297
            message = "enabled"
 
298
            self.using_timer(False)
 
299
        self._text = "{}{}".format(base, message)
 
300
        
240
301
        if not urwid.supports_unicode():
241
302
            self._text = self._text.encode("ascii", "replace")
242
 
        textlist = [(u"normal", self._text)]
 
303
        textlist = [("normal", self._text)]
243
304
        self._text_widget.set_text(textlist)
244
305
        self._focus_text_widget.set_text([(with_standout[text[0]],
245
306
                                           text[1])
254
315
            self.update_hook()
255
316
    
256
317
    def update_timer(self):
257
 
        "called by gobject"
 
318
        """called by gobject. Will indefinitely loop until
 
319
        gobject.source_remove() on tag is called"""
258
320
        self.update()
259
321
        return True             # Keep calling this
260
322
    
261
 
    def delete(self):
 
323
    def delete(self, **kwargs):
262
324
        if self._update_timer_callback_tag is not None:
263
325
            gobject.source_remove(self._update_timer_callback_tag)
264
326
            self._update_timer_callback_tag = None
 
327
        for match in self.match_objects:
 
328
            match.remove()
 
329
        self.match_objects = ()
265
330
        if self.delete_hook is not None:
266
331
            self.delete_hook(self)
 
332
        return super(MandosClientWidget, self).delete(**kwargs)
267
333
    
268
 
    def render(self, (maxcol,), focus=False):
 
334
    def render(self, maxcolrow, focus=False):
269
335
        """Render differently if we have focus.
270
336
        This overrides the method from urwid.FlowWidget"""
271
 
        return self.current_widget(focus).render((maxcol,),
 
337
        return self.current_widget(focus).render(maxcolrow,
272
338
                                                 focus=focus)
273
339
    
274
 
    def keypress(self, (maxcol,), key):
 
340
    def keypress(self, maxcolrow, key):
275
341
        """Handle keys.
276
342
        This overrides the method from urwid.FlowWidget"""
277
 
        if key == u"e" or key == u"+":
278
 
            self.proxy.Enable()
279
 
        elif key == u"d" or key == u"-":
280
 
            self.proxy.Disable()
281
 
        elif key == u"r" or key == u"_" or key == u"ctrl k":
 
343
        if key == "+":
 
344
            self.proxy.Enable(dbus_interface = client_interface,
 
345
                              ignore_reply=True)
 
346
        elif key == "-":
 
347
            self.proxy.Disable(dbus_interface = client_interface,
 
348
                               ignore_reply=True)
 
349
        elif key == "a":
 
350
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
351
                               dbus_interface = client_interface,
 
352
                               ignore_reply=True)
 
353
        elif key == "d":
 
354
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
355
                                  dbus_interface = client_interface,
 
356
                               ignore_reply=True)
 
357
        elif key == "R" or key == "_" or key == "ctrl k":
282
358
            self.server_proxy_object.RemoveClient(self.proxy
283
 
                                                  .object_path)
284
 
        elif key == u"s":
285
 
            self.proxy.StartChecker()
286
 
        elif key == u"S":
287
 
            self.proxy.StopChecker()
288
 
        elif key == u"C":
289
 
            self.proxy.CheckedOK()
 
359
                                                  .object_path,
 
360
                                                  ignore_reply=True)
 
361
        elif key == "s":
 
362
            self.proxy.StartChecker(dbus_interface = client_interface,
 
363
                                    ignore_reply=True)
 
364
        elif key == "S":
 
365
            self.proxy.StopChecker(dbus_interface = client_interface,
 
366
                                   ignore_reply=True)
 
367
        elif key == "C":
 
368
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
369
                                 ignore_reply=True)
290
370
        # xxx
291
 
#         elif key == u"p" or key == "=":
 
371
#         elif key == "p" or key == "=":
292
372
#             self.proxy.pause()
293
 
#         elif key == u"u" or key == ":":
 
373
#         elif key == "u" or key == ":":
294
374
#             self.proxy.unpause()
295
 
#         elif key == u"RET":
 
375
#         elif key == "RET":
296
376
#             self.open()
297
377
        else:
298
378
            return key
299
379
    
300
 
    def property_changed(self, property=None, value=None,
301
 
                         *args, **kwargs):
 
380
    def property_changed(self, property=None, **kwargs):
302
381
        """Call self.update() if old value is not new value.
303
382
        This overrides the method from MandosClientPropertyCache"""
304
 
        property_name = unicode(property)
 
383
        property_name = str(property)
305
384
        old_value = self.properties.get(property_name)
306
385
        super(MandosClientWidget, self).property_changed(
307
 
            property=property, value=value, *args, **kwargs)
 
386
            property=property, **kwargs)
308
387
        if self.properties.get(property_name) != old_value:
309
388
            self.update()
310
389
 
314
393
    "down" key presses, thus not allowing any containing widgets to
315
394
    use them as an excuse to shift focus away from this widget.
316
395
    """
317
 
    def keypress(self, (maxcol, maxrow), key):
318
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
319
 
        if ret in (u"up", u"down"):
 
396
    def keypress(self, *args, **kwargs):
 
397
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
398
        if ret in ("up", "down"):
320
399
            return
321
400
        return ret
322
401
 
325
404
    """This is the entire user interface - the whole screen
326
405
    with boxes, lists of client widgets, etc.
327
406
    """
328
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
329
408
        DBusGMainLoop(set_as_default=True)
330
409
        
331
410
        self.screen = urwid.curses_display.Screen()
332
411
        
333
412
        self.screen.register_palette((
334
 
                (u"normal",
335
 
                 u"default", u"default", None),
336
 
                (u"bold",
337
 
                 u"default", u"default", u"bold"),
338
 
                (u"underline-blink",
339
 
                 u"default", u"default", u"underline"),
340
 
                (u"standout",
341
 
                 u"default", u"default", u"standout"),
342
 
                (u"bold-underline-blink",
343
 
                 u"default", u"default", (u"bold", u"underline")),
344
 
                (u"bold-standout",
345
 
                 u"default", u"default", (u"bold", u"standout")),
346
 
                (u"underline-blink-standout",
347
 
                 u"default", u"default", (u"underline", u"standout")),
348
 
                (u"bold-underline-blink-standout",
349
 
                 u"default", u"default", (u"bold", u"underline",
350
 
                                          u"standout")),
 
413
                ("normal",
 
414
                 "default", "default", None),
 
415
                ("bold",
 
416
                 "bold", "default", "bold"),
 
417
                ("underline-blink",
 
418
                 "underline,blink", "default", "underline,blink"),
 
419
                ("standout",
 
420
                 "standout", "default", "standout"),
 
421
                ("bold-underline-blink",
 
422
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
423
                ("bold-standout",
 
424
                 "bold,standout", "default", "bold,standout"),
 
425
                ("underline-blink-standout",
 
426
                 "underline,blink,standout", "default",
 
427
                 "underline,blink,standout"),
 
428
                ("bold-underline-blink-standout",
 
429
                 "bold,underline,blink,standout", "default",
 
430
                 "bold,underline,blink,standout"),
351
431
                ))
352
432
        
353
433
        if urwid.supports_unicode():
354
 
            self.divider = u"─" # \u2500
355
 
            #self.divider = u"━" # \u2501
 
434
            self.divider = "─" # \u2500
 
435
            #self.divider = "━" # \u2501
356
436
        else:
357
 
            #self.divider = u"-" # \u002d
358
 
            self.divider = u"_" # \u005f
 
437
            #self.divider = "-" # \u002d
 
438
            self.divider = "_" # \u005f
359
439
        
360
440
        self.screen.start()
361
441
        
368
448
        self.log = []
369
449
        self.max_log_length = max_log_length
370
450
        
 
451
        self.log_level = log_level
 
452
        
371
453
        # We keep a reference to the log widget so we can remove it
372
454
        # from the ListWalker without it getting destroyed
373
455
        self.logbox = ConstrainedListBox(self.log)
375
457
        # This keeps track of whether self.uilist currently has
376
458
        # self.logbox in it or not
377
459
        self.log_visible = True
378
 
        self.log_wrap = u"any"
 
460
        self.log_wrap = "any"
379
461
        
380
462
        self.rebuild()
381
 
        self.log_message_raw((u"bold",
382
 
                              u"Mandos Monitor version " + version))
383
 
        self.log_message_raw((u"bold",
384
 
                              u"q: Quit  ?: Help"))
 
463
        self.log_message_raw(("bold",
 
464
                              "Mandos Monitor version " + version))
 
465
        self.log_message_raw(("bold",
 
466
                              "q: Quit  ?: Help"))
385
467
        
386
468
        self.busname = domain + '.Mandos'
387
469
        self.main_loop = gobject.MainLoop()
388
 
        self.bus = dbus.SystemBus()
389
 
        mandos_dbus_objc = self.bus.get_object(
390
 
            self.busname, u"/", follow_name_owner_changes=True)
391
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
392
 
                                          dbus_interface
393
 
                                          = server_interface)
394
 
        try:
395
 
            mandos_clients = (self.mandos_serv
396
 
                              .GetAllClientsWithProperties())
397
 
        except dbus.exceptions.DBusException:
398
 
            mandos_clients = dbus.Dictionary()
399
 
        
400
 
        (self.mandos_serv
401
 
         .connect_to_signal(u"ClientRemoved",
402
 
                            self.find_and_remove_client,
403
 
                            dbus_interface=server_interface,
404
 
                            byte_arrays=True))
405
 
        (self.mandos_serv
406
 
         .connect_to_signal(u"ClientAdded",
407
 
                            self.add_new_client,
408
 
                            dbus_interface=server_interface,
409
 
                            byte_arrays=True))
410
 
        (self.mandos_serv
411
 
         .connect_to_signal(u"ClientNotFound",
412
 
                            self.client_not_found,
413
 
                            dbus_interface=server_interface,
414
 
                            byte_arrays=True))
415
 
        for path, client in mandos_clients.iteritems():
416
 
            client_proxy_object = self.bus.get_object(self.busname,
417
 
                                                      path)
418
 
            self.add_client(MandosClientWidget(server_proxy_object
419
 
                                               =self.mandos_serv,
420
 
                                               proxy_object
421
 
                                               =client_proxy_object,
422
 
                                               properties=client,
423
 
                                               update_hook
424
 
                                               =self.refresh,
425
 
                                               delete_hook
426
 
                                               =self.remove_client,
427
 
                                               logger
428
 
                                               =self.log_message),
429
 
                            path=path)
430
470
    
431
471
    def client_not_found(self, fingerprint, address):
432
 
        self.log_message((u"Client with address %s and fingerprint %s"
433
 
                          u" could not be found" % (address,
434
 
                                                    fingerprint)))
 
472
        self.log_message("Client with address {} and fingerprint {}"
 
473
                         " could not be found"
 
474
                         .format(address, fingerprint))
435
475
    
436
476
    def rebuild(self):
437
477
        """This rebuilds the User Interface.
438
478
        Call this when the widget layout needs to change"""
439
479
        self.uilist = []
440
480
        #self.uilist.append(urwid.ListBox(self.clients))
441
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
481
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
482
                                                          clients),
442
483
                                       #header=urwid.Divider(),
443
484
                                       header=None,
444
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
485
                                       footer=
 
486
                                       urwid.Divider(div_char=
 
487
                                                     self.divider)))
445
488
        if self.log_visible:
446
489
            self.uilist.append(self.logbox)
447
 
            pass
448
490
        self.topwidget = urwid.Pile(self.uilist)
449
491
    
450
 
    def log_message(self, message):
 
492
    def log_message(self, message, level=1):
 
493
        """Log message formatted with timestamp"""
 
494
        if level < self.log_level:
 
495
            return
451
496
        timestamp = datetime.datetime.now().isoformat()
452
 
        self.log_message_raw(timestamp + u": " + message)
 
497
        self.log_message_raw("{}: {}".format(timestamp, message),
 
498
                             level=level)
453
499
    
454
 
    def log_message_raw(self, markup):
 
500
    def log_message_raw(self, markup, level=1):
455
501
        """Add a log message to the log buffer."""
 
502
        if level < self.log_level:
 
503
            return
456
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
457
505
        if (self.max_log_length
458
506
            and len(self.log) > self.max_log_length):
459
507
            del self.log[0:len(self.log)-self.max_log_length-1]
460
508
        self.logbox.set_focus(len(self.logbox.body.contents),
461
 
                              coming_from=u"above")
 
509
                              coming_from="above")
462
510
        self.refresh()
463
511
    
464
512
    def toggle_log_display(self):
465
513
        """Toggle visibility of the log buffer."""
466
514
        self.log_visible = not self.log_visible
467
515
        self.rebuild()
468
 
        self.log_message(u"Log visibility changed to: "
469
 
                         + unicode(self.log_visible))
 
516
        self.log_message("Log visibility changed to: {}"
 
517
                         .format(self.log_visible), level=0)
470
518
    
471
519
    def change_log_display(self):
472
520
        """Change type of log display.
473
521
        Currently, this toggles wrapping of text lines."""
474
 
        if self.log_wrap == u"clip":
475
 
            self.log_wrap = u"any"
 
522
        if self.log_wrap == "clip":
 
523
            self.log_wrap = "any"
476
524
        else:
477
 
            self.log_wrap = u"clip"
 
525
            self.log_wrap = "clip"
478
526
        for textwidget in self.log:
479
527
            textwidget.set_wrap_mode(self.log_wrap)
480
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
528
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
529
                         level=0)
481
530
    
482
531
    def find_and_remove_client(self, path, name):
483
 
        """Find an client from its object path and remove it.
 
532
        """Find a client by its object path and remove it.
484
533
        
485
534
        This is connected to the ClientRemoved signal from the
486
535
        Mandos server object."""
488
537
            client = self.clients_dict[path]
489
538
        except KeyError:
490
539
            # not found?
 
540
            self.log_message("Unknown client {!r} ({!r}) removed"
 
541
                             .format(name, path))
491
542
            return
492
 
        self.remove_client(client, path)
 
543
        client.delete()
493
544
    
494
545
    def add_new_client(self, path):
495
546
        client_proxy_object = self.bus.get_object(self.busname, path)
510
561
        if path is None:
511
562
            path = client.proxy.object_path
512
563
        self.clients_dict[path] = client
513
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
564
        self.clients.sort(key=lambda c: c.properties["Name"])
514
565
        self.refresh()
515
566
    
516
567
    def remove_client(self, client, path=None):
518
569
        if path is None:
519
570
            path = client.proxy.object_path
520
571
        del self.clients_dict[path]
521
 
        if not self.clients_dict:
522
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
523
 
            # is completely emptied, we need to recreate it.
524
 
            self.clients = urwid.SimpleListWalker([])
525
 
            self.rebuild()
526
572
        self.refresh()
527
573
    
528
574
    def refresh(self):
532
578
    
533
579
    def run(self):
534
580
        """Start the main loop and exit when it's done."""
 
581
        self.bus = dbus.SystemBus()
 
582
        mandos_dbus_objc = self.bus.get_object(
 
583
            self.busname, "/", follow_name_owner_changes=True)
 
584
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
585
                                          dbus_interface
 
586
                                          = server_interface)
 
587
        try:
 
588
            mandos_clients = (self.mandos_serv
 
589
                              .GetAllClientsWithProperties())
 
590
            if not mandos_clients:
 
591
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
592
        except dbus.exceptions.DBusException:
 
593
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
594
            mandos_clients = dbus.Dictionary()
 
595
        
 
596
        (self.mandos_serv
 
597
         .connect_to_signal("ClientRemoved",
 
598
                            self.find_and_remove_client,
 
599
                            dbus_interface=server_interface,
 
600
                            byte_arrays=True))
 
601
        (self.mandos_serv
 
602
         .connect_to_signal("ClientAdded",
 
603
                            self.add_new_client,
 
604
                            dbus_interface=server_interface,
 
605
                            byte_arrays=True))
 
606
        (self.mandos_serv
 
607
         .connect_to_signal("ClientNotFound",
 
608
                            self.client_not_found,
 
609
                            dbus_interface=server_interface,
 
610
                            byte_arrays=True))
 
611
        for path, client in mandos_clients.items():
 
612
            client_proxy_object = self.bus.get_object(self.busname,
 
613
                                                      path)
 
614
            self.add_client(MandosClientWidget(server_proxy_object
 
615
                                               =self.mandos_serv,
 
616
                                               proxy_object
 
617
                                               =client_proxy_object,
 
618
                                               properties=client,
 
619
                                               update_hook
 
620
                                               =self.refresh,
 
621
                                               delete_hook
 
622
                                               =self.remove_client,
 
623
                                               logger
 
624
                                               =self.log_message),
 
625
                            path=path)
 
626
        
535
627
        self.refresh()
536
628
        self._input_callback_tag = (gobject.io_add_watch
537
629
                                    (sys.stdin.fileno(),
547
639
    
548
640
    def process_input(self, source, condition):
549
641
        keys = self.screen.get_input()
550
 
        translations = { u"ctrl n": u"down",      # Emacs
551
 
                         u"ctrl p": u"up",        # Emacs
552
 
                         u"ctrl v": u"page down", # Emacs
553
 
                         u"meta v": u"page up",   # Emacs
554
 
                         u" ": u"page down",      # less
555
 
                         u"f": u"page down",      # less
556
 
                         u"b": u"page up",        # less
557
 
                         u"j": u"down",           # vi
558
 
                         u"k": u"up",             # vi
 
642
        translations = { "ctrl n": "down",      # Emacs
 
643
                         "ctrl p": "up",        # Emacs
 
644
                         "ctrl v": "page down", # Emacs
 
645
                         "meta v": "page up",   # Emacs
 
646
                         " ": "page down",      # less
 
647
                         "f": "page down",      # less
 
648
                         "b": "page up",        # less
 
649
                         "j": "down",           # vi
 
650
                         "k": "up",             # vi
559
651
                         }
560
652
        for key in keys:
561
653
            try:
563
655
            except KeyError:    # :-)
564
656
                pass
565
657
            
566
 
            if key == u"q" or key == u"Q":
 
658
            if key == "q" or key == "Q":
567
659
                self.stop()
568
660
                break
569
 
            elif key == u"window resize":
 
661
            elif key == "window resize":
570
662
                self.size = self.screen.get_cols_rows()
571
663
                self.refresh()
572
 
            elif key == u"\f":  # Ctrl-L
 
664
            elif key == "ctrl l":
 
665
                self.screen.clear()
573
666
                self.refresh()
574
 
            elif key == u"l" or key == u"D":
 
667
            elif key == "l" or key == "D":
575
668
                self.toggle_log_display()
576
669
                self.refresh()
577
 
            elif key == u"w" or key == u"i":
 
670
            elif key == "w" or key == "i":
578
671
                self.change_log_display()
579
672
                self.refresh()
580
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
673
            elif key == "?" or key == "f1" or key == "esc":
581
674
                if not self.log_visible:
582
675
                    self.log_visible = True
583
676
                    self.rebuild()
584
 
                self.log_message_raw((u"bold",
585
 
                                      u"  ".
586
 
                                      join((u"q: Quit",
587
 
                                            u"?: Help",
588
 
                                            u"l: Log window toggle",
589
 
                                            u"TAB: Switch window",
590
 
                                            u"w: Wrap (log)"))))
591
 
                self.log_message_raw((u"bold",
592
 
                                      u"  "
593
 
                                      .join((u"Clients:",
594
 
                                             u"e: Enable",
595
 
                                             u"d: Disable",
596
 
                                             u"r: Remove",
597
 
                                             u"s: Start new checker",
598
 
                                             u"S: Stop checker",
599
 
                                             u"C: Checker OK"))))
 
677
                self.log_message_raw(("bold",
 
678
                                      "  ".
 
679
                                      join(("q: Quit",
 
680
                                            "?: Help",
 
681
                                            "l: Log window toggle",
 
682
                                            "TAB: Switch window",
 
683
                                            "w: Wrap (log lines)",
 
684
                                            "v: Toggle verbose log",
 
685
                                            ))))
 
686
                self.log_message_raw(("bold",
 
687
                                      "  "
 
688
                                      .join(("Clients:",
 
689
                                             "+: Enable",
 
690
                                             "-: Disable",
 
691
                                             "R: Remove",
 
692
                                             "s: Start new checker",
 
693
                                             "S: Stop checker",
 
694
                                             "C: Checker OK",
 
695
                                             "a: Approve",
 
696
                                             "d: Deny"))))
600
697
                self.refresh()
601
 
            elif key == u"tab":
 
698
            elif key == "tab":
602
699
                if self.topwidget.get_focus() is self.logbox:
603
700
                    self.topwidget.set_focus(0)
604
701
                else:
605
702
                    self.topwidget.set_focus(self.logbox)
606
703
                self.refresh()
607
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
608
 
            #      or key == u">"):
 
704
            elif key == "v":
 
705
                if self.log_level == 0:
 
706
                    self.log_level = 1
 
707
                    self.log_message("Verbose mode: Off")
 
708
                else:
 
709
                    self.log_level = 0
 
710
                    self.log_message("Verbose mode: On")
 
711
            #elif (key == "end" or key == "meta >" or key == "G"
 
712
            #      or key == ">"):
609
713
            #    pass            # xxx end-of-buffer
610
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
611
 
            #      or key == u"<"):
 
714
            #elif (key == "home" or key == "meta <" or key == "g"
 
715
            #      or key == "<"):
612
716
            #    pass            # xxx beginning-of-buffer
613
 
            #elif key == u"ctrl e" or key == u"$":
 
717
            #elif key == "ctrl e" or key == "$":
614
718
            #    pass            # xxx move-end-of-line
615
 
            #elif key == u"ctrl a" or key == u"^":
 
719
            #elif key == "ctrl a" or key == "^":
616
720
            #    pass            # xxx move-beginning-of-line
617
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
721
            #elif key == "ctrl b" or key == "meta (" or key == "h":
618
722
            #    pass            # xxx left
619
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
723
            #elif key == "ctrl f" or key == "meta )" or key == "l":
620
724
            #    pass            # xxx right
621
 
            #elif key == u"a":
 
725
            #elif key == "a":
622
726
            #    pass            # scroll up log
623
 
            #elif key == u"z":
 
727
            #elif key == "z":
624
728
            #    pass            # scroll down log
625
729
            elif self.topwidget.selectable():
626
730
                self.topwidget.keypress(self.size, key)
630
734
ui = UserInterface()
631
735
try:
632
736
    ui.run()
633
 
except Exception, e:
634
 
    ui.log_message(unicode(e))
 
737
except KeyboardInterrupt:
 
738
    ui.screen.stop()
 
739
except Exception as e:
 
740
    ui.log_message(str(e))
635
741
    ui.screen.stop()
636
742
    raise