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  • Committer: Teddy Hogeborn
  • Date: 2014-08-06 20:56:55 UTC
  • mto: This revision was merged to the branch mainline in revision 728.
  • Revision ID: teddy@recompile.se-20140806205655-lq7xkfr3b9pbwr6l
Tags: version-1.6.8-1
* Makefile (version): Changed to "1.6.8".
* NEWS (Version 1.6.8): New entry.
* debian/changelog (1.6.8-1): - '' -

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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
 
import signal
 
34
import os
 
35
 
 
36
import datetime
8
37
 
9
38
import urwid.curses_display
10
39
import urwid
11
40
 
12
41
from dbus.mainloop.glib import DBusGMainLoop
13
 
import gobject
 
42
try:
 
43
    import gobject
 
44
except ImportError:
 
45
    from gi.repository import GObject as gobject
14
46
 
15
47
import dbus
16
48
 
17
 
import UserList
 
49
import locale
 
50
 
 
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)
18
58
 
19
59
# Some useful constants
20
 
domain = 'se.bsnet.fukt'
 
60
domain = 'se.recompile'
21
61
server_interface = domain + '.Mandos'
22
62
client_interface = domain + '.Mandos.Client'
23
 
version = "1.0.14"
24
 
 
25
 
# Always run in monochrome mode
26
 
urwid.curses_display.curses.has_colors = lambda : False
27
 
 
28
 
# Urwid doesn't support blinking, but we want it.  Since we have no
29
 
# use for underline on its own, we make underline also always blink.
30
 
urwid.curses_display.curses.A_UNDERLINE |= (
31
 
    urwid.curses_display.curses.A_BLINK)
 
63
version = "1.6.8"
 
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
32
80
 
33
81
class MandosClientPropertyCache(object):
34
82
    """This wraps a Mandos Client D-Bus proxy object, caches the
35
83
    properties and calls a hook function when any of them are
36
84
    changed.
37
85
    """
38
 
    def __init__(self, proxy_object=None, properties=None, *args,
39
 
                 **kwargs):
 
86
    def __init__(self, proxy_object=None, properties=None, **kwargs):
40
87
        self.proxy = proxy_object # Mandos Client proxy object
41
 
        
42
 
        if properties is None:
43
 
            self.properties = dict()
44
 
        else:
45
 
            self.properties = properties
46
 
        self.proxy.connect_to_signal("PropertyChanged",
47
 
                                     self.property_changed,
48
 
                                     client_interface,
49
 
                                     byte_arrays=True)
50
 
        
51
 
        if properties is None:
52
 
            self.properties.update(self.proxy.GetAll(client_interface,
53
 
                                                     dbus_interface =
54
 
                                                     dbus.PROPERTIES_IFACE))
55
 
        super(MandosClientPropertyCache, self).__init__(
56
 
            proxy_object=proxy_object,
57
 
            properties=properties, *args, **kwargs)
 
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)
58
106
    
59
107
    def property_changed(self, property=None, value=None):
60
108
        """This is called whenever we get a PropertyChanged signal
62
110
        """
63
111
        # Update properties dict with new value
64
112
        self.properties[property] = value
 
113
    
 
114
    def delete(self):
 
115
        self.property_changed_match.remove()
65
116
 
66
117
 
67
118
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
69
120
    """
70
121
    
71
122
    def __init__(self, server_proxy_object=None, update_hook=None,
72
 
                 delete_hook=None, *args, **kwargs):
 
123
                 delete_hook=None, logger=None, **kwargs):
73
124
        # Called on update
74
125
        self.update_hook = update_hook
75
126
        # Called on delete
76
127
        self.delete_hook = delete_hook
77
128
        # Mandos Server proxy object
78
129
        self.server_proxy_object = server_proxy_object
 
130
        # Logger
 
131
        self.logger = logger
 
132
        
 
133
        self._update_timer_callback_tag = None
79
134
        
80
135
        # The widget shown normally
81
136
        self._text_widget = urwid.Text("")
82
137
        # The widget shown when we have focus
83
138
        self._focus_text_widget = urwid.Text("")
84
 
        super(MandosClientWidget, self).__init__(
85
 
            update_hook=update_hook, delete_hook=delete_hook,
86
 
            *args, **kwargs)
 
139
        super(MandosClientWidget, self).__init__(**kwargs)
87
140
        self.update()
88
141
        self.opened = False
 
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
 
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
 
179
    
 
180
    def checker_completed(self, exitstatus, condition, command):
 
181
        if exitstatus == 0:
 
182
            self.logger('Checker for client {} (command "{}")'
 
183
                        ' succeeded'.format(self.properties["Name"],
 
184
                                            command), level=0)
 
185
            self.update()
 
186
            return
 
187
        # Checker failed
 
188
        if os.WIFEXITED(condition):
 
189
            self.logger('Checker for client {} (command "{}") failed'
 
190
                        ' with exit code {}'
 
191
                        .format(self.properties["Name"], command,
 
192
                                os.WEXITSTATUS(condition)))
 
193
        elif os.WIFSIGNALED(condition):
 
194
            self.logger('Checker for client {} (command "{}") was'
 
195
                        ' killed by signal {}'
 
196
                        .format(self.properties["Name"], command,
 
197
                                os.WTERMSIG(condition)))
 
198
        elif os.WCOREDUMP(condition):
 
199
            self.logger('Checker for client {} (command "{}") dumped'
 
200
                        ' core'.format(self.properties["Name"],
 
201
                                       command))
 
202
        else:
 
203
            self.logger('Checker for client {} completed'
 
204
                        ' mysteriously'
 
205
                        .format(self.properties["Name"]))
 
206
        self.update()
 
207
    
 
208
    def checker_started(self, command):
 
209
        """Server signals that a checker started."""
 
210
        self.logger('Client {} started checker "{}"'
 
211
                    .format(self.properties["Name"],
 
212
                            command), level=0)
 
213
    
 
214
    def got_secret(self):
 
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))
89
229
    
90
230
    def selectable(self):
91
231
        """Make this a "selectable" widget.
92
232
        This overrides the method from urwid.FlowWidget."""
93
233
        return True
94
234
    
95
 
    def rows(self, (maxcol,), focus=False):
 
235
    def rows(self, maxcolrow, focus=False):
96
236
        """How many rows this widget will occupy might depend on
97
237
        whether we have focus or not.
98
238
        This overrides the method from urwid.FlowWidget"""
99
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
239
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
100
240
    
101
241
    def current_widget(self, focus=False):
102
242
        if focus or self.opened:
106
246
    def update(self):
107
247
        "Called when what is visible on the screen should be updated."
108
248
        # How to add standout mode to a style
109
 
        with_standout = { u"normal": u"standout",
110
 
                          u"bold": u"bold-standout",
111
 
                          u"underline-blink":
112
 
                              u"underline-blink-standout",
113
 
                          u"bold-underline-blink":
114
 
                              u"bold-underline-blink-standout",
 
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",
115
255
                          }
116
256
        
117
257
        # Rebuild focus and non-focus widgets using current properties
118
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
119
 
                      % self.properties)
 
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
        
120
301
        if not urwid.supports_unicode():
121
302
            self._text = self._text.encode("ascii", "replace")
122
 
        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
 
303
        textlist = [("normal", self._text)]
123
304
        self._text_widget.set_text(textlist)
124
305
        self._focus_text_widget.set_text([(with_standout[text[0]],
125
306
                                           text[1])
133
314
        if self.update_hook is not None:
134
315
            self.update_hook()
135
316
    
136
 
    def delete(self):
 
317
    def update_timer(self):
 
318
        """called by gobject. Will indefinitely loop until
 
319
        gobject.source_remove() on tag is called"""
 
320
        self.update()
 
321
        return True             # Keep calling this
 
322
    
 
323
    def delete(self, **kwargs):
 
324
        if self._update_timer_callback_tag is not None:
 
325
            gobject.source_remove(self._update_timer_callback_tag)
 
326
            self._update_timer_callback_tag = None
 
327
        for match in self.match_objects:
 
328
            match.remove()
 
329
        self.match_objects = ()
137
330
        if self.delete_hook is not None:
138
331
            self.delete_hook(self)
 
332
        return super(MandosClientWidget, self).delete(**kwargs)
139
333
    
140
 
    def render(self, (maxcol,), focus=False):
 
334
    def render(self, maxcolrow, focus=False):
141
335
        """Render differently if we have focus.
142
336
        This overrides the method from urwid.FlowWidget"""
143
 
        return self.current_widget(focus).render((maxcol,),
 
337
        return self.current_widget(focus).render(maxcolrow,
144
338
                                                 focus=focus)
145
339
    
146
 
    def keypress(self, (maxcol,), key):
 
340
    def keypress(self, maxcolrow, key):
147
341
        """Handle keys.
148
342
        This overrides the method from urwid.FlowWidget"""
149
 
        if key == u"e" or key == u"+":
150
 
            self.proxy.Enable()
151
 
        elif key == u"d" or key == u"-":
152
 
            self.proxy.Disable()
153
 
        elif key == u"r" or key == u"_":
 
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":
154
358
            self.server_proxy_object.RemoveClient(self.proxy
155
 
                                                  .object_path)
156
 
        elif key == u"s":
157
 
            self.proxy.StartChecker()
158
 
        elif key == u"c":
159
 
            self.proxy.StopChecker()
160
 
        elif key == u"S":
161
 
            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)
162
370
        # xxx
163
 
#         elif key == u"p" or key == "=":
 
371
#         elif key == "p" or key == "=":
164
372
#             self.proxy.pause()
165
 
#         elif key == u"u" or key == ":":
 
373
#         elif key == "u" or key == ":":
166
374
#             self.proxy.unpause()
167
 
#         elif key == u"RET":
 
375
#         elif key == "RET":
168
376
#             self.open()
169
377
        else:
170
378
            return key
171
379
    
172
 
    def property_changed(self, property=None, value=None,
173
 
                         *args, **kwargs):
 
380
    def property_changed(self, property=None, **kwargs):
174
381
        """Call self.update() if old value is not new value.
175
382
        This overrides the method from MandosClientPropertyCache"""
176
 
        property_name = unicode(property)
 
383
        property_name = str(property)
177
384
        old_value = self.properties.get(property_name)
178
385
        super(MandosClientWidget, self).property_changed(
179
 
            property=property, value=value, *args, **kwargs)
 
386
            property=property, **kwargs)
180
387
        if self.properties.get(property_name) != old_value:
181
388
            self.update()
182
389
 
186
393
    "down" key presses, thus not allowing any containing widgets to
187
394
    use them as an excuse to shift focus away from this widget.
188
395
    """
189
 
    def keypress(self, (maxcol, maxrow), key):
190
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
 
        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"):
192
399
            return
193
400
        return ret
194
401
 
197
404
    """This is the entire user interface - the whole screen
198
405
    with boxes, lists of client widgets, etc.
199
406
    """
200
 
    def __init__(self, max_log_length=1000):
 
407
    def __init__(self, max_log_length=1000, log_level=1):
201
408
        DBusGMainLoop(set_as_default=True)
202
409
        
203
410
        self.screen = urwid.curses_display.Screen()
204
411
        
205
412
        self.screen.register_palette((
206
 
                (u"normal",
207
 
                 u"default", u"default", None),
208
 
                (u"bold",
209
 
                 u"default", u"default", u"bold"),
210
 
                (u"underline-blink",
211
 
                 u"default", u"default", u"underline"),
212
 
                (u"standout",
213
 
                 u"default", u"default", u"standout"),
214
 
                (u"bold-underline-blink",
215
 
                 u"default", u"default", (u"bold", u"underline")),
216
 
                (u"bold-standout",
217
 
                 u"default", u"default", (u"bold", u"standout")),
218
 
                (u"underline-blink-standout",
219
 
                 u"default", u"default", (u"underline", u"standout")),
220
 
                (u"bold-underline-blink-standout",
221
 
                 u"default", u"default", (u"bold", u"underline",
222
 
                                          u"standout")),
 
413
                ("normal",
 
414
                 "default", "default", None),
 
415
                ("bold",
 
416
                 "bold", "default", "bold"),
 
417
                ("underline-blink",
 
418
                 "underline,blink", "default", "underline,blink"),
 
419
                ("standout",
 
420
                 "standout", "default", "standout"),
 
421
                ("bold-underline-blink",
 
422
                 "bold,underline,blink", "default", "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"),
223
431
                ))
224
432
        
225
433
        if urwid.supports_unicode():
226
 
            #self.divider = u"─" # \u2500
227
 
            self.divider = u"━" # \u2501
 
434
            self.divider = "─" # \u2500
 
435
            #self.divider = "━" # \u2501
228
436
        else:
229
 
            #self.divider = u"-" # \u002d
230
 
            self.divider = u"_" # \u005f
 
437
            #self.divider = "-" # \u002d
 
438
            self.divider = "_" # \u005f
231
439
        
232
440
        self.screen.start()
233
441
        
240
448
        self.log = []
241
449
        self.max_log_length = max_log_length
242
450
        
 
451
        self.log_level = log_level
 
452
        
243
453
        # We keep a reference to the log widget so we can remove it
244
454
        # from the ListWalker without it getting destroyed
245
455
        self.logbox = ConstrainedListBox(self.log)
247
457
        # This keeps track of whether self.uilist currently has
248
458
        # self.logbox in it or not
249
459
        self.log_visible = True
250
 
        self.log_wrap = u"any"
 
460
        self.log_wrap = "any"
251
461
        
252
462
        self.rebuild()
253
 
        self.log_message(u"Message")
254
 
        self.log_message(u"Message0 Message1 Message2 Message3 Message4 Message5 Message6 Message7 Message8 Message9")
255
 
        self.log_message(u"Message10 Message11 Message12 Message13 Message14 Message15 Message16 Message17 Message18 Message19")
256
 
        self.log_message(u"Message20 Message21 Message22 Message23 Message24 Message25 Message26 Message27 Message28 Message29")
 
463
        self.log_message_raw(("bold",
 
464
                              "Mandos Monitor version " + version))
 
465
        self.log_message_raw(("bold",
 
466
                              "q: Quit  ?: Help"))
257
467
        
258
468
        self.busname = domain + '.Mandos'
259
469
        self.main_loop = gobject.MainLoop()
260
 
        self.bus = dbus.SystemBus()
261
 
        mandos_dbus_objc = self.bus.get_object(
262
 
            self.busname, u"/", follow_name_owner_changes=True)
263
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
264
 
                                          dbus_interface
265
 
                                          = server_interface)
266
 
        try:
267
 
            mandos_clients = (self.mandos_serv
268
 
                              .GetAllClientsWithProperties())
269
 
        except dbus.exceptions.DBusException:
270
 
            mandos_clients = dbus.Dictionary()
271
 
        
272
 
        (self.mandos_serv
273
 
         .connect_to_signal("ClientRemoved",
274
 
                            self.find_and_remove_client,
275
 
                            dbus_interface=server_interface,
276
 
                            byte_arrays=True))
277
 
        (self.mandos_serv
278
 
         .connect_to_signal("ClientAdded",
279
 
                            self.add_new_client,
280
 
                            dbus_interface=server_interface,
281
 
                            byte_arrays=True))
282
 
        for path, client in mandos_clients.iteritems():
283
 
            client_proxy_object = self.bus.get_object(self.busname,
284
 
                                                      path)
285
 
            self.add_client(MandosClientWidget(server_proxy_object
286
 
                                               =self.mandos_serv,
287
 
                                               proxy_object
288
 
                                               =client_proxy_object,
289
 
                                               properties=client,
290
 
                                               update_hook
291
 
                                               =self.refresh,
292
 
                                               delete_hook
293
 
                                               =self.remove_client),
294
 
                            path=path)
 
470
    
 
471
    def client_not_found(self, fingerprint, address):
 
472
        self.log_message("Client with address {} and fingerprint {}"
 
473
                         " could not be found"
 
474
                         .format(address, fingerprint))
295
475
    
296
476
    def rebuild(self):
297
477
        """This rebuilds the User Interface.
298
478
        Call this when the widget layout needs to change"""
299
479
        self.uilist = []
300
480
        #self.uilist.append(urwid.ListBox(self.clients))
301
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
481
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
482
                                                          clients),
302
483
                                       #header=urwid.Divider(),
303
484
                                       header=None,
304
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
485
                                       footer=
 
486
                                       urwid.Divider(div_char=
 
487
                                                     self.divider)))
305
488
        if self.log_visible:
306
489
            self.uilist.append(self.logbox)
307
 
            pass
308
490
        self.topwidget = urwid.Pile(self.uilist)
309
491
    
310
 
    def log_message(self, markup):
 
492
    def log_message(self, message, level=1):
 
493
        """Log message formatted with timestamp"""
 
494
        if level < self.log_level:
 
495
            return
 
496
        timestamp = datetime.datetime.now().isoformat()
 
497
        self.log_message_raw("{}: {}".format(timestamp, message),
 
498
                             level=level)
 
499
    
 
500
    def log_message_raw(self, markup, level=1):
311
501
        """Add a log message to the log buffer."""
 
502
        if level < self.log_level:
 
503
            return
312
504
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
313
505
        if (self.max_log_length
314
506
            and len(self.log) > self.max_log_length):
315
507
            del self.log[0:len(self.log)-self.max_log_length-1]
 
508
        self.logbox.set_focus(len(self.logbox.body.contents),
 
509
                              coming_from="above")
 
510
        self.refresh()
316
511
    
317
512
    def toggle_log_display(self):
318
513
        """Toggle visibility of the log buffer."""
319
514
        self.log_visible = not self.log_visible
320
515
        self.rebuild()
321
 
        self.log_message(u"Log visibility changed to: "
322
 
                         + unicode(self.log_visible))
 
516
        self.log_message("Log visibility changed to: {}"
 
517
                         .format(self.log_visible), level=0)
323
518
    
324
519
    def change_log_display(self):
325
520
        """Change type of log display.
326
521
        Currently, this toggles wrapping of text lines."""
327
 
        if self.log_wrap == u"clip":
328
 
            self.log_wrap = u"any"
 
522
        if self.log_wrap == "clip":
 
523
            self.log_wrap = "any"
329
524
        else:
330
 
            self.log_wrap = u"clip"
 
525
            self.log_wrap = "clip"
331
526
        for textwidget in self.log:
332
527
            textwidget.set_wrap_mode(self.log_wrap)
333
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
528
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
529
                         level=0)
334
530
    
335
531
    def find_and_remove_client(self, path, name):
336
 
        """Find an client from its object path and remove it.
 
532
        """Find a client by its object path and remove it.
337
533
        
338
534
        This is connected to the ClientRemoved signal from the
339
535
        Mandos server object."""
341
537
            client = self.clients_dict[path]
342
538
        except KeyError:
343
539
            # not found?
 
540
            self.log_message("Unknown client {!r} ({!r}) removed"
 
541
                             .format(name, path))
344
542
            return
345
 
        self.remove_client(client, path)
 
543
        client.delete()
346
544
    
347
 
    def add_new_client(self, path, properties):
 
545
    def add_new_client(self, path):
348
546
        client_proxy_object = self.bus.get_object(self.busname, path)
349
547
        self.add_client(MandosClientWidget(server_proxy_object
350
548
                                           =self.mandos_serv,
351
549
                                           proxy_object
352
550
                                           =client_proxy_object,
353
 
                                           properties=properties,
354
551
                                           update_hook
355
552
                                           =self.refresh,
356
553
                                           delete_hook
357
 
                                           =self.remove_client),
 
554
                                           =self.remove_client,
 
555
                                           logger
 
556
                                           =self.log_message),
358
557
                        path=path)
359
558
    
360
559
    def add_client(self, client, path=None):
362
561
        if path is None:
363
562
            path = client.proxy.object_path
364
563
        self.clients_dict[path] = client
365
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
564
        self.clients.sort(key=lambda c: c.properties["Name"])
366
565
        self.refresh()
367
566
    
368
567
    def remove_client(self, client, path=None):
370
569
        if path is None:
371
570
            path = client.proxy.object_path
372
571
        del self.clients_dict[path]
373
 
        if not self.clients_dict:
374
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
375
 
            # is completely emptied, we need to recreate it.
376
 
            self.clients = urwid.SimpleListWalker([])
377
 
            self.rebuild()
378
572
        self.refresh()
379
573
    
380
574
    def refresh(self):
384
578
    
385
579
    def run(self):
386
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
        
387
627
        self.refresh()
388
628
        self._input_callback_tag = (gobject.io_add_watch
389
629
                                    (sys.stdin.fileno(),
399
639
    
400
640
    def process_input(self, source, condition):
401
641
        keys = self.screen.get_input()
402
 
        translations = { u"ctrl n": u"down",      # Emacs
403
 
                         u"ctrl p": u"up",        # Emacs
404
 
                         u"ctrl v": u"page down", # Emacs
405
 
                         u"meta v": u"page up",   # Emacs
406
 
                         u" ": u"page down",      # less
407
 
                         u"f": u"page down",      # less
408
 
                         u"b": u"page up",        # less
409
 
                         u"j": u"down",           # vi
410
 
                         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
411
651
                         }
412
652
        for key in keys:
413
653
            try:
415
655
            except KeyError:    # :-)
416
656
                pass
417
657
            
418
 
            if key == u"q" or key == u"Q":
 
658
            if key == "q" or key == "Q":
419
659
                self.stop()
420
660
                break
421
 
            elif key == u"window resize":
 
661
            elif key == "window resize":
422
662
                self.size = self.screen.get_cols_rows()
423
663
                self.refresh()
424
 
            elif key == u"\f":  # Ctrl-L
 
664
            elif key == "ctrl l":
 
665
                self.screen.clear()
425
666
                self.refresh()
426
 
            elif key == u"l" or key == u"D":
 
667
            elif key == "l" or key == "D":
427
668
                self.toggle_log_display()
428
669
                self.refresh()
429
 
            elif key == u"w" or key == u"i":
 
670
            elif key == "w" or key == "i":
430
671
                self.change_log_display()
431
672
                self.refresh()
432
 
            elif key == u"?" or key == u"f1":
433
 
                self.log_message(u"Help!")
 
673
            elif key == "?" or key == "f1" or key == "esc":
 
674
                if not self.log_visible:
 
675
                    self.log_visible = True
 
676
                    self.rebuild()
 
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"))))
434
697
                self.refresh()
435
 
            elif key == u"tab":
 
698
            elif key == "tab":
436
699
                if self.topwidget.get_focus() is self.logbox:
437
700
                    self.topwidget.set_focus(0)
438
701
                else:
439
702
                    self.topwidget.set_focus(self.logbox)
440
703
                self.refresh()
441
 
            elif (key == u"end" or key == u"meta >" or key == u"G"
442
 
                  or key == u">"):
443
 
                pass            # xxx end-of-buffer
444
 
            elif (key == u"home" or key == u"meta <" or key == u"g"
445
 
                  or key == u"<"):
446
 
                pass            # xxx beginning-of-buffer
447
 
            elif key == u"ctrl e" or key == u"$":
448
 
                pass            # xxx move-end-of-line
449
 
            elif key == u"ctrl a" or key == u"^":
450
 
                pass            # xxx move-beginning-of-line
451
 
            elif key == u"ctrl b" or key == u"meta (" or key == u"h":
452
 
                pass            # xxx left
453
 
            elif key == u"ctrl f" or key == u"meta )" or key == u"l":
454
 
                pass            # xxx right
455
 
            elif key == u"a":
456
 
                pass            # scroll up log
457
 
            elif key == u"z":
458
 
                pass            # scroll down log
 
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 == ">"):
 
713
            #    pass            # xxx end-of-buffer
 
714
            #elif (key == "home" or key == "meta <" or key == "g"
 
715
            #      or key == "<"):
 
716
            #    pass            # xxx beginning-of-buffer
 
717
            #elif key == "ctrl e" or key == "$":
 
718
            #    pass            # xxx move-end-of-line
 
719
            #elif key == "ctrl a" or key == "^":
 
720
            #    pass            # xxx move-beginning-of-line
 
721
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
722
            #    pass            # xxx left
 
723
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
724
            #    pass            # xxx right
 
725
            #elif key == "a":
 
726
            #    pass            # scroll up log
 
727
            #elif key == "z":
 
728
            #    pass            # scroll down log
459
729
            elif self.topwidget.selectable():
460
730
                self.topwidget.keypress(self.size, key)
461
731
                self.refresh()
464
734
ui = UserInterface()
465
735
try:
466
736
    ui.run()
467
 
except:
 
737
except KeyboardInterrupt:
 
738
    ui.screen.stop()
 
739
except Exception as e:
 
740
    ui.log_message(str(e))
468
741
    ui.screen.stop()
469
742
    raise