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  • Committer: Teddy Hogeborn
  • Date: 2015-08-10 07:34:37 UTC
  • Revision ID: teddy@recompile.se-20150810073437-3m8jgt13nqric6vf
Revert change to D-Bus API.

The D-Bus API signal CheckerCompleted is documented to provide a
wait(2) status value.  Since the server switched to using subprocess
to run checkers, it no longer has access to a wait(2) status value.  A
previous change to work around this made the D-Bus API incompatible.
Revert this change by constructing a fake wait(2) status value; this
keeps the D-Bus API stable.

* DBUS-API (CheckerCompleted): Revert incompatible change.
* mandos (ClientDBus.checker_callback): Construct fake wait(2) status.
* mandos-monitor (MandosClientWidget.checker_completed): Revert to
                                                         using
                                                         original API
                                                         with wait(2)
                                                         condition
                                                         value.

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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 © 2009-2015 Teddy Hogeborn
 
7
# Copyright © 2009-2015 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 = "1.6.9"
 
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("PropertiesChanged",
 
91
                                         self.properties_changed,
 
92
                                         dbus.PROPERTIES_IFACE,
 
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)
58
102
    
59
 
    def property_changed(self, property=None, value=None):
60
 
        """This is called whenever we get a PropertyChanged signal
61
 
        It updates the changed property in the "properties" dict.
 
103
    def properties_changed(self, interface, properties, invalidated):
 
104
        """This is called whenever we get a PropertiesChanged signal
 
105
        It updates the changed properties in the "properties" dict.
62
106
        """
63
107
        # Update properties dict with new value
64
 
        self.properties[property] = value
 
108
        self.properties.update(properties)
 
109
    
 
110
    def delete(self):
 
111
        self.property_changed_match.remove()
65
112
 
66
113
 
67
114
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
69
116
    """
70
117
    
71
118
    def __init__(self, server_proxy_object=None, update_hook=None,
72
 
                 delete_hook=None, *args, **kwargs):
 
119
                 delete_hook=None, logger=None, **kwargs):
73
120
        # Called on update
74
121
        self.update_hook = update_hook
75
122
        # Called on delete
76
123
        self.delete_hook = delete_hook
77
124
        # Mandos Server proxy object
78
125
        self.server_proxy_object = server_proxy_object
 
126
        # Logger
 
127
        self.logger = logger
 
128
        
 
129
        self._update_timer_callback_tag = None
79
130
        
80
131
        # The widget shown normally
81
132
        self._text_widget = urwid.Text("")
82
133
        # The widget shown when we have focus
83
134
        self._focus_text_widget = urwid.Text("")
84
 
        super(MandosClientWidget, self).__init__(
85
 
            update_hook=update_hook, delete_hook=delete_hook,
86
 
            *args, **kwargs)
 
135
        super(MandosClientWidget, self).__init__(**kwargs)
87
136
        self.update()
88
137
        self.opened = False
 
138
        
 
139
        self.match_objects = (
 
140
            self.proxy.connect_to_signal("CheckerCompleted",
 
141
                                         self.checker_completed,
 
142
                                         client_interface,
 
143
                                         byte_arrays=True),
 
144
            self.proxy.connect_to_signal("CheckerStarted",
 
145
                                         self.checker_started,
 
146
                                         client_interface,
 
147
                                         byte_arrays=True),
 
148
            self.proxy.connect_to_signal("GotSecret",
 
149
                                         self.got_secret,
 
150
                                         client_interface,
 
151
                                         byte_arrays=True),
 
152
            self.proxy.connect_to_signal("NeedApproval",
 
153
                                         self.need_approval,
 
154
                                         client_interface,
 
155
                                         byte_arrays=True),
 
156
            self.proxy.connect_to_signal("Rejected",
 
157
                                         self.rejected,
 
158
                                         client_interface,
 
159
                                         byte_arrays=True))
 
160
        self.logger('Created client {}'
 
161
                    .format(self.properties["Name"]), level=0)
 
162
    
 
163
    def using_timer(self, flag):
 
164
        """Call this method with True or False when timer should be
 
165
        activated or deactivated.
 
166
        """
 
167
        if flag and self._update_timer_callback_tag is None:
 
168
            # Will update the shown timer value every second
 
169
            self._update_timer_callback_tag = (gobject.timeout_add
 
170
                                               (1000,
 
171
                                                self.update_timer))
 
172
        elif not (flag or self._update_timer_callback_tag is None):
 
173
            gobject.source_remove(self._update_timer_callback_tag)
 
174
            self._update_timer_callback_tag = None
 
175
    
 
176
    def checker_completed(self, exitstatus, condition, command):
 
177
        if exitstatus == 0:
 
178
            self.logger('Checker for client {} (command "{}")'
 
179
                        ' succeeded'.format(self.properties["Name"],
 
180
                                            command), level=0)
 
181
            self.update()
 
182
            return
 
183
        # Checker failed
 
184
        if os.WIFEXITED(condition):
 
185
            self.logger('Checker for client {} (command "{}") failed'
 
186
                        ' with exit code {}'
 
187
                        .format(self.properties["Name"], command,
 
188
                                os.WEXITSTATUS(condition)))
 
189
        elif os.WIFSIGNALED(condition):
 
190
            self.logger('Checker for client {} (command "{}") was'
 
191
                        ' killed by signal {}'
 
192
                        .format(self.properties["Name"], command,
 
193
                                os.WTERMSIG(condition)))
 
194
        self.update()
 
195
    
 
196
    def checker_started(self, command):
 
197
        """Server signals that a checker started."""
 
198
        self.logger('Client {} started checker "{}"'
 
199
                    .format(self.properties["Name"],
 
200
                            command), level=0)
 
201
    
 
202
    def got_secret(self):
 
203
        self.logger('Client {} received its secret'
 
204
                    .format(self.properties["Name"]))
 
205
    
 
206
    def need_approval(self, timeout, default):
 
207
        if not default:
 
208
            message = 'Client {} needs approval within {} seconds'
 
209
        else:
 
210
            message = 'Client {} will get its secret in {} seconds'
 
211
        self.logger(message.format(self.properties["Name"],
 
212
                                   timeout/1000))
 
213
    
 
214
    def rejected(self, reason):
 
215
        self.logger('Client {} was rejected; reason: {}'
 
216
                    .format(self.properties["Name"], reason))
89
217
    
90
218
    def selectable(self):
91
219
        """Make this a "selectable" widget.
92
220
        This overrides the method from urwid.FlowWidget."""
93
221
        return True
94
222
    
95
 
    def rows(self, (maxcol,), focus=False):
 
223
    def rows(self, maxcolrow, focus=False):
96
224
        """How many rows this widget will occupy might depend on
97
225
        whether we have focus or not.
98
226
        This overrides the method from urwid.FlowWidget"""
99
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
227
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
100
228
    
101
229
    def current_widget(self, focus=False):
102
230
        if focus or self.opened:
106
234
    def update(self):
107
235
        "Called when what is visible on the screen should be updated."
108
236
        # 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",
 
237
        with_standout = { "normal": "standout",
 
238
                          "bold": "bold-standout",
 
239
                          "underline-blink":
 
240
                              "underline-blink-standout",
 
241
                          "bold-underline-blink":
 
242
                              "bold-underline-blink-standout",
115
243
                          }
116
244
        
117
245
        # Rebuild focus and non-focus widgets using current properties
118
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
119
 
                      % self.properties)
 
246
        
 
247
        # Base part of a client. Name!
 
248
        base = '{name}: '.format(name=self.properties["Name"])
 
249
        if not self.properties["Enabled"]:
 
250
            message = "DISABLED"
 
251
            self.using_timer(False)
 
252
        elif self.properties["ApprovalPending"]:
 
253
            timeout = datetime.timedelta(milliseconds
 
254
                                         = self.properties
 
255
                                         ["ApprovalDelay"])
 
256
            last_approval_request = isoformat_to_datetime(
 
257
                self.properties["LastApprovalRequest"])
 
258
            if last_approval_request is not None:
 
259
                timer = max(timeout - (datetime.datetime.utcnow()
 
260
                                       - last_approval_request),
 
261
                            datetime.timedelta())
 
262
            else:
 
263
                timer = datetime.timedelta()
 
264
            if self.properties["ApprovedByDefault"]:
 
265
                message = "Approval in {}. (d)eny?"
 
266
            else:
 
267
                message = "Denial in {}. (a)pprove?"
 
268
            message = message.format(str(timer).rsplit(".", 1)[0])
 
269
            self.using_timer(True)
 
270
        elif self.properties["LastCheckerStatus"] != 0:
 
271
            # When checker has failed, show timer until client expires
 
272
            expires = self.properties["Expires"]
 
273
            if expires == "":
 
274
                timer = datetime.timedelta(0)
 
275
            else:
 
276
                expires = (datetime.datetime.strptime
 
277
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
278
                timer = max(expires - datetime.datetime.utcnow(),
 
279
                            datetime.timedelta())
 
280
            message = ('A checker has failed! Time until client'
 
281
                       ' gets disabled: {}'
 
282
                       .format(str(timer).rsplit(".", 1)[0]))
 
283
            self.using_timer(True)
 
284
        else:
 
285
            message = "enabled"
 
286
            self.using_timer(False)
 
287
        self._text = "{}{}".format(base, message)
 
288
        
120
289
        if not urwid.supports_unicode():
121
290
            self._text = self._text.encode("ascii", "replace")
122
 
        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
 
291
        textlist = [("normal", self._text)]
123
292
        self._text_widget.set_text(textlist)
124
293
        self._focus_text_widget.set_text([(with_standout[text[0]],
125
294
                                           text[1])
133
302
        if self.update_hook is not None:
134
303
            self.update_hook()
135
304
    
136
 
    def delete(self):
 
305
    def update_timer(self):
 
306
        """called by gobject. Will indefinitely loop until
 
307
        gobject.source_remove() on tag is called"""
 
308
        self.update()
 
309
        return True             # Keep calling this
 
310
    
 
311
    def delete(self, **kwargs):
 
312
        if self._update_timer_callback_tag is not None:
 
313
            gobject.source_remove(self._update_timer_callback_tag)
 
314
            self._update_timer_callback_tag = None
 
315
        for match in self.match_objects:
 
316
            match.remove()
 
317
        self.match_objects = ()
137
318
        if self.delete_hook is not None:
138
319
            self.delete_hook(self)
 
320
        return super(MandosClientWidget, self).delete(**kwargs)
139
321
    
140
 
    def render(self, (maxcol,), focus=False):
 
322
    def render(self, maxcolrow, focus=False):
141
323
        """Render differently if we have focus.
142
324
        This overrides the method from urwid.FlowWidget"""
143
 
        return self.current_widget(focus).render((maxcol,),
 
325
        return self.current_widget(focus).render(maxcolrow,
144
326
                                                 focus=focus)
145
327
    
146
 
    def keypress(self, (maxcol,), key):
 
328
    def keypress(self, maxcolrow, key):
147
329
        """Handle keys.
148
330
        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"_":
 
331
        if key == "+":
 
332
            self.proxy.Set(client_interface, "Enabled",
 
333
                           dbus.Boolean(True), ignore_reply = True,
 
334
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
335
        elif key == "-":
 
336
            self.proxy.Set(client_interface, "Enabled", False,
 
337
                           ignore_reply = True,
 
338
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
339
        elif key == "a":
 
340
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
 
341
                               dbus_interface = client_interface,
 
342
                               ignore_reply=True)
 
343
        elif key == "d":
 
344
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
 
345
                                  dbus_interface = client_interface,
 
346
                               ignore_reply=True)
 
347
        elif key == "R" or key == "_" or key == "ctrl k":
154
348
            self.server_proxy_object.RemoveClient(self.proxy
155
 
                                                  .object_path)
156
 
        elif key == u"s":
157
 
            self.proxy.StartChecker()
158
 
        elif key == u"S":
159
 
            self.proxy.StopChecker()
160
 
        elif key == u"C":
161
 
            self.proxy.CheckedOK()
 
349
                                                  .object_path,
 
350
                                                  ignore_reply=True)
 
351
        elif key == "s":
 
352
            self.proxy.Set(client_interface, "CheckerRunning",
 
353
                           dbus.Boolean(True), ignore_reply = True,
 
354
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
355
        elif key == "S":
 
356
            self.proxy.Set(client_interface, "CheckerRunning",
 
357
                           dbus.Boolean(False), ignore_reply = True,
 
358
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
359
        elif key == "C":
 
360
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
361
                                 ignore_reply=True)
162
362
        # xxx
163
 
#         elif key == u"p" or key == "=":
 
363
#         elif key == "p" or key == "=":
164
364
#             self.proxy.pause()
165
 
#         elif key == u"u" or key == ":":
 
365
#         elif key == "u" or key == ":":
166
366
#             self.proxy.unpause()
167
 
#         elif key == u"RET":
 
367
#         elif key == "RET":
168
368
#             self.open()
169
369
        else:
170
370
            return key
171
371
    
172
 
    def property_changed(self, property=None, value=None,
173
 
                         *args, **kwargs):
174
 
        """Call self.update() if old value is not new value.
 
372
    def properties_changed(self, interface, properties, invalidated):
 
373
        """Call self.update() if any properties changed.
175
374
        This overrides the method from MandosClientPropertyCache"""
176
 
        property_name = unicode(property)
177
 
        old_value = self.properties.get(property_name)
178
 
        super(MandosClientWidget, self).property_changed(
179
 
            property=property, value=value, *args, **kwargs)
180
 
        if self.properties.get(property_name) != old_value:
 
375
        old_values = { key: self.properties.get(key)
 
376
                       for key in properties.keys() }
 
377
        super(MandosClientWidget, self).properties_changed(
 
378
            interface, properties, invalidated)
 
379
        if any(old_values[key] != self.properties.get(key)
 
380
               for key in old_values):
181
381
            self.update()
182
382
 
183
383
 
186
386
    "down" key presses, thus not allowing any containing widgets to
187
387
    use them as an excuse to shift focus away from this widget.
188
388
    """
189
 
    def keypress(self, (maxcol, maxrow), key):
190
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
 
        if ret in (u"up", u"down"):
 
389
    def keypress(self, *args, **kwargs):
 
390
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
391
        if ret in ("up", "down"):
192
392
            return
193
393
        return ret
194
394
 
197
397
    """This is the entire user interface - the whole screen
198
398
    with boxes, lists of client widgets, etc.
199
399
    """
200
 
    def __init__(self, max_log_length=1000):
 
400
    def __init__(self, max_log_length=1000, log_level=1):
201
401
        DBusGMainLoop(set_as_default=True)
202
402
        
203
403
        self.screen = urwid.curses_display.Screen()
204
404
        
205
405
        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")),
 
406
                ("normal",
 
407
                 "default", "default", None),
 
408
                ("bold",
 
409
                 "bold", "default", "bold"),
 
410
                ("underline-blink",
 
411
                 "underline,blink", "default", "underline,blink"),
 
412
                ("standout",
 
413
                 "standout", "default", "standout"),
 
414
                ("bold-underline-blink",
 
415
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
416
                ("bold-standout",
 
417
                 "bold,standout", "default", "bold,standout"),
 
418
                ("underline-blink-standout",
 
419
                 "underline,blink,standout", "default",
 
420
                 "underline,blink,standout"),
 
421
                ("bold-underline-blink-standout",
 
422
                 "bold,underline,blink,standout", "default",
 
423
                 "bold,underline,blink,standout"),
223
424
                ))
224
425
        
225
426
        if urwid.supports_unicode():
226
 
            #self.divider = u"─" # \u2500
227
 
            self.divider = u"━" # \u2501
 
427
            self.divider = "─" # \u2500
 
428
            #self.divider = "━" # \u2501
228
429
        else:
229
 
            #self.divider = u"-" # \u002d
230
 
            self.divider = u"_" # \u005f
 
430
            #self.divider = "-" # \u002d
 
431
            self.divider = "_" # \u005f
231
432
        
232
433
        self.screen.start()
233
434
        
240
441
        self.log = []
241
442
        self.max_log_length = max_log_length
242
443
        
 
444
        self.log_level = log_level
 
445
        
243
446
        # We keep a reference to the log widget so we can remove it
244
447
        # from the ListWalker without it getting destroyed
245
448
        self.logbox = ConstrainedListBox(self.log)
247
450
        # This keeps track of whether self.uilist currently has
248
451
        # self.logbox in it or not
249
452
        self.log_visible = True
250
 
        self.log_wrap = u"any"
 
453
        self.log_wrap = "any"
251
454
        
252
455
        self.rebuild()
253
 
        self.log_message((u"bold",
254
 
                          u"Mandos Monitor version " + version))
255
 
        self.log_message((u"bold",
256
 
                          u"q: Quit  ?: Help"))
 
456
        self.log_message_raw(("bold",
 
457
                              "Mandos Monitor version " + version))
 
458
        self.log_message_raw(("bold",
 
459
                              "q: Quit  ?: Help"))
257
460
        
258
461
        self.busname = domain + '.Mandos'
259
462
        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)
 
463
    
 
464
    def client_not_found(self, fingerprint, address):
 
465
        self.log_message("Client with address {} and fingerprint {}"
 
466
                         " could not be found"
 
467
                         .format(address, fingerprint))
295
468
    
296
469
    def rebuild(self):
297
470
        """This rebuilds the User Interface.
298
471
        Call this when the widget layout needs to change"""
299
472
        self.uilist = []
300
473
        #self.uilist.append(urwid.ListBox(self.clients))
301
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
474
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
475
                                                          clients),
302
476
                                       #header=urwid.Divider(),
303
477
                                       header=None,
304
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
478
                                       footer=
 
479
                                       urwid.Divider(div_char=
 
480
                                                     self.divider)))
305
481
        if self.log_visible:
306
482
            self.uilist.append(self.logbox)
307
 
            pass
308
483
        self.topwidget = urwid.Pile(self.uilist)
309
484
    
310
 
    def log_message(self, markup):
 
485
    def log_message(self, message, level=1):
 
486
        """Log message formatted with timestamp"""
 
487
        if level < self.log_level:
 
488
            return
 
489
        timestamp = datetime.datetime.now().isoformat()
 
490
        self.log_message_raw("{}: {}".format(timestamp, message),
 
491
                             level=level)
 
492
    
 
493
    def log_message_raw(self, markup, level=1):
311
494
        """Add a log message to the log buffer."""
 
495
        if level < self.log_level:
 
496
            return
312
497
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
313
498
        if (self.max_log_length
314
499
            and len(self.log) > self.max_log_length):
315
500
            del self.log[0:len(self.log)-self.max_log_length-1]
 
501
        self.logbox.set_focus(len(self.logbox.body.contents),
 
502
                              coming_from="above")
 
503
        self.refresh()
316
504
    
317
505
    def toggle_log_display(self):
318
506
        """Toggle visibility of the log buffer."""
319
507
        self.log_visible = not self.log_visible
320
508
        self.rebuild()
321
 
        self.log_message(u"Log visibility changed to: "
322
 
                         + unicode(self.log_visible))
 
509
        self.log_message("Log visibility changed to: {}"
 
510
                         .format(self.log_visible), level=0)
323
511
    
324
512
    def change_log_display(self):
325
513
        """Change type of log display.
326
514
        Currently, this toggles wrapping of text lines."""
327
 
        if self.log_wrap == u"clip":
328
 
            self.log_wrap = u"any"
 
515
        if self.log_wrap == "clip":
 
516
            self.log_wrap = "any"
329
517
        else:
330
 
            self.log_wrap = u"clip"
 
518
            self.log_wrap = "clip"
331
519
        for textwidget in self.log:
332
520
            textwidget.set_wrap_mode(self.log_wrap)
333
 
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
521
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
522
                         level=0)
334
523
    
335
524
    def find_and_remove_client(self, path, name):
336
 
        """Find an client from its object path and remove it.
 
525
        """Find a client by its object path and remove it.
337
526
        
338
527
        This is connected to the ClientRemoved signal from the
339
528
        Mandos server object."""
341
530
            client = self.clients_dict[path]
342
531
        except KeyError:
343
532
            # not found?
 
533
            self.log_message("Unknown client {!r} ({!r}) removed"
 
534
                             .format(name, path))
344
535
            return
345
 
        self.remove_client(client, path)
 
536
        client.delete()
346
537
    
347
 
    def add_new_client(self, path, properties):
 
538
    def add_new_client(self, path):
348
539
        client_proxy_object = self.bus.get_object(self.busname, path)
349
540
        self.add_client(MandosClientWidget(server_proxy_object
350
541
                                           =self.mandos_serv,
351
542
                                           proxy_object
352
543
                                           =client_proxy_object,
353
 
                                           properties=properties,
354
544
                                           update_hook
355
545
                                           =self.refresh,
356
546
                                           delete_hook
357
 
                                           =self.remove_client),
 
547
                                           =self.remove_client,
 
548
                                           logger
 
549
                                           =self.log_message),
358
550
                        path=path)
359
551
    
360
552
    def add_client(self, client, path=None):
362
554
        if path is None:
363
555
            path = client.proxy.object_path
364
556
        self.clients_dict[path] = client
365
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
557
        self.clients.sort(key=lambda c: c.properties["Name"])
366
558
        self.refresh()
367
559
    
368
560
    def remove_client(self, client, path=None):
370
562
        if path is None:
371
563
            path = client.proxy.object_path
372
564
        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
565
        self.refresh()
379
566
    
380
567
    def refresh(self):
384
571
    
385
572
    def run(self):
386
573
        """Start the main loop and exit when it's done."""
 
574
        self.bus = dbus.SystemBus()
 
575
        mandos_dbus_objc = self.bus.get_object(
 
576
            self.busname, "/", follow_name_owner_changes=True)
 
577
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
578
                                          dbus_interface
 
579
                                          = server_interface)
 
580
        try:
 
581
            mandos_clients = (self.mandos_serv
 
582
                              .GetAllClientsWithProperties())
 
583
            if not mandos_clients:
 
584
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
585
        except dbus.exceptions.DBusException:
 
586
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
587
            mandos_clients = dbus.Dictionary()
 
588
        
 
589
        (self.mandos_serv
 
590
         .connect_to_signal("ClientRemoved",
 
591
                            self.find_and_remove_client,
 
592
                            dbus_interface=server_interface,
 
593
                            byte_arrays=True))
 
594
        (self.mandos_serv
 
595
         .connect_to_signal("ClientAdded",
 
596
                            self.add_new_client,
 
597
                            dbus_interface=server_interface,
 
598
                            byte_arrays=True))
 
599
        (self.mandos_serv
 
600
         .connect_to_signal("ClientNotFound",
 
601
                            self.client_not_found,
 
602
                            dbus_interface=server_interface,
 
603
                            byte_arrays=True))
 
604
        for path, client in mandos_clients.items():
 
605
            client_proxy_object = self.bus.get_object(self.busname,
 
606
                                                      path)
 
607
            self.add_client(MandosClientWidget(server_proxy_object
 
608
                                               =self.mandos_serv,
 
609
                                               proxy_object
 
610
                                               =client_proxy_object,
 
611
                                               properties=client,
 
612
                                               update_hook
 
613
                                               =self.refresh,
 
614
                                               delete_hook
 
615
                                               =self.remove_client,
 
616
                                               logger
 
617
                                               =self.log_message),
 
618
                            path=path)
 
619
        
387
620
        self.refresh()
388
621
        self._input_callback_tag = (gobject.io_add_watch
389
622
                                    (sys.stdin.fileno(),
399
632
    
400
633
    def process_input(self, source, condition):
401
634
        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
 
635
        translations = { "ctrl n": "down",      # Emacs
 
636
                         "ctrl p": "up",        # Emacs
 
637
                         "ctrl v": "page down", # Emacs
 
638
                         "meta v": "page up",   # Emacs
 
639
                         " ": "page down",      # less
 
640
                         "f": "page down",      # less
 
641
                         "b": "page up",        # less
 
642
                         "j": "down",           # vi
 
643
                         "k": "up",             # vi
411
644
                         }
412
645
        for key in keys:
413
646
            try:
415
648
            except KeyError:    # :-)
416
649
                pass
417
650
            
418
 
            if key == u"q" or key == u"Q":
 
651
            if key == "q" or key == "Q":
419
652
                self.stop()
420
653
                break
421
 
            elif key == u"window resize":
 
654
            elif key == "window resize":
422
655
                self.size = self.screen.get_cols_rows()
423
656
                self.refresh()
424
 
            elif key == u"\f":  # Ctrl-L
 
657
            elif key == "ctrl l":
 
658
                self.screen.clear()
425
659
                self.refresh()
426
 
            elif key == u"l" or key == u"D":
 
660
            elif key == "l" or key == "D":
427
661
                self.toggle_log_display()
428
662
                self.refresh()
429
 
            elif key == u"w" or key == u"i":
 
663
            elif key == "w" or key == "i":
430
664
                self.change_log_display()
431
665
                self.refresh()
432
 
            elif key == u"?" or key == u"f1":
 
666
            elif key == "?" or key == "f1" or key == "esc":
433
667
                if not self.log_visible:
434
668
                    self.log_visible = True
435
669
                    self.rebuild()
436
 
                self.log_message((u"bold",
437
 
                                  u"  ".join((u"q: Quit",
438
 
                                              u"?: Help",
439
 
                                              u"l: Log window toggle",
440
 
                                              u"TAB: Switch window",
441
 
                                              u"w: Wrap (log)"))))
442
 
                self.log_message((u"bold",
443
 
                                  u"  ".join((u"Clients:",
444
 
                                              u"e: Enable",
445
 
                                              u"d: Disable",
446
 
                                              u"r: Remove",
447
 
                                              u"s: Start new checker",
448
 
                                              u"S: Stop checker",
449
 
                                              u"C: Checker OK"))))
 
670
                self.log_message_raw(("bold",
 
671
                                      "  ".
 
672
                                      join(("q: Quit",
 
673
                                            "?: Help",
 
674
                                            "l: Log window toggle",
 
675
                                            "TAB: Switch window",
 
676
                                            "w: Wrap (log lines)",
 
677
                                            "v: Toggle verbose log",
 
678
                                            ))))
 
679
                self.log_message_raw(("bold",
 
680
                                      "  "
 
681
                                      .join(("Clients:",
 
682
                                             "+: Enable",
 
683
                                             "-: Disable",
 
684
                                             "R: Remove",
 
685
                                             "s: Start new checker",
 
686
                                             "S: Stop checker",
 
687
                                             "C: Checker OK",
 
688
                                             "a: Approve",
 
689
                                             "d: Deny"))))
450
690
                self.refresh()
451
 
            elif key == u"tab":
 
691
            elif key == "tab":
452
692
                if self.topwidget.get_focus() is self.logbox:
453
693
                    self.topwidget.set_focus(0)
454
694
                else:
455
695
                    self.topwidget.set_focus(self.logbox)
456
696
                self.refresh()
457
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
458
 
            #      or key == u">"):
 
697
            elif key == "v":
 
698
                if self.log_level == 0:
 
699
                    self.log_level = 1
 
700
                    self.log_message("Verbose mode: Off")
 
701
                else:
 
702
                    self.log_level = 0
 
703
                    self.log_message("Verbose mode: On")
 
704
            #elif (key == "end" or key == "meta >" or key == "G"
 
705
            #      or key == ">"):
459
706
            #    pass            # xxx end-of-buffer
460
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
461
 
            #      or key == u"<"):
 
707
            #elif (key == "home" or key == "meta <" or key == "g"
 
708
            #      or key == "<"):
462
709
            #    pass            # xxx beginning-of-buffer
463
 
            #elif key == u"ctrl e" or key == u"$":
 
710
            #elif key == "ctrl e" or key == "$":
464
711
            #    pass            # xxx move-end-of-line
465
 
            #elif key == u"ctrl a" or key == u"^":
 
712
            #elif key == "ctrl a" or key == "^":
466
713
            #    pass            # xxx move-beginning-of-line
467
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
714
            #elif key == "ctrl b" or key == "meta (" or key == "h":
468
715
            #    pass            # xxx left
469
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
716
            #elif key == "ctrl f" or key == "meta )" or key == "l":
470
717
            #    pass            # xxx right
471
 
            #elif key == u"a":
 
718
            #elif key == "a":
472
719
            #    pass            # scroll up log
473
 
            #elif key == u"z":
 
720
            #elif key == "z":
474
721
            #    pass            # scroll down log
475
722
            elif self.topwidget.selectable():
476
723
                self.topwidget.keypress(self.size, key)
480
727
ui = UserInterface()
481
728
try:
482
729
    ui.run()
483
 
except:
 
730
except KeyboardInterrupt:
 
731
    ui.screen.stop()
 
732
except Exception as e:
 
733
    ui.log_message(str(e))
484
734
    ui.screen.stop()
485
735
    raise