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  • Committer: Teddy Hogeborn
  • Date: 2009-11-15 10:12:09 UTC
  • Revision ID: teddy@fukt.bsnet.se-20091115101209-d0zrfwkp6u0l7v7b
* mandos (MandosServer.handle_ipc): Better log message.
  (main/MandosDBusService.ClientNotFound): Add "address" argument.
                                           All callers changed.
* mandos-monitor (MandosClientWidget.__init__): Add "logger" argument.
  (MandosClientWidget.checker_completed,
  MandosClientWidget.checker_started, MandosClientWidget.got_secret,
  MandosClientWidget.rejected): New methods, connected to signals.
  (MandosClientWidget.update): Improve display.
  (UserInterface.client_not_found): New method, conneced to signal.
  (UserInterface.log_message): New; log with timestamp.
  (UserInterface.log_message_raw): Same as old "log_message".  Bug
                                  fix; always do "refresh()".

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mandos-monitor
1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
7
import os
36
 
import warnings
 
8
import signal
 
9
 
37
10
import datetime
38
 
import locale
39
 
import logging
40
11
 
41
12
import urwid.curses_display
42
13
import urwid
43
14
 
44
15
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
16
import gobject
46
17
 
47
18
import dbus
48
19
 
49
 
if sys.version_info.major == 2:
50
 
    str = unicode
51
 
 
52
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
53
 
logging.basicConfig(level="NOTSET", # Show all messages
54
 
                    format="%(message)s") # Show basic log messages
55
 
 
56
 
logging.captureWarnings(True)   # Show warnings via the logging system
57
 
 
58
 
locale.setlocale(locale.LC_ALL, "")
59
 
 
60
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
20
import UserList
61
21
 
62
22
# Some useful constants
63
 
domain = "se.recompile"
64
 
server_interface = domain + ".Mandos"
65
 
client_interface = domain + ".Mandos.Client"
66
 
version = "1.8.9"
67
 
 
68
 
try:
69
 
    dbus.OBJECT_MANAGER_IFACE
70
 
except AttributeError:
71
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
72
 
 
73
 
 
74
 
def isoformat_to_datetime(iso):
75
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
76
 
    if not iso:
77
 
        return None
78
 
    d, t = iso.split("T", 1)
79
 
    year, month, day = d.split("-", 2)
80
 
    hour, minute, second = t.split(":", 2)
81
 
    second, fraction = divmod(float(second), 1)
82
 
    return datetime.datetime(int(year),
83
 
                             int(month),
84
 
                             int(day),
85
 
                             int(hour),
86
 
                             int(minute),
87
 
                             int(second),            # Whole seconds
88
 
                             int(fraction*1000000))  # Microseconds
89
 
 
 
23
domain = 'se.bsnet.fukt'
 
24
server_interface = domain + '.Mandos'
 
25
client_interface = domain + '.Mandos.Client'
 
26
version = "1.0.14"
 
27
 
 
28
# Always run in monochrome mode
 
29
urwid.curses_display.curses.has_colors = lambda : False
 
30
 
 
31
# Urwid doesn't support blinking, but we want it.  Since we have no
 
32
# use for underline on its own, we make underline also always blink.
 
33
urwid.curses_display.curses.A_UNDERLINE |= (
 
34
    urwid.curses_display.curses.A_BLINK)
90
35
 
91
36
class MandosClientPropertyCache(object):
92
37
    """This wraps a Mandos Client D-Bus proxy object, caches the
93
38
    properties and calls a hook function when any of them are
94
39
    changed.
95
40
    """
96
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
97
 
        self.proxy = proxy_object  # Mandos Client proxy object
98
 
        self.properties = dict() if properties is None else properties
99
 
        self.property_changed_match = (
100
 
            self.proxy.connect_to_signal("PropertiesChanged",
101
 
                                         self.properties_changed,
102
 
                                         dbus.PROPERTIES_IFACE,
103
 
                                         byte_arrays=True))
104
 
 
105
 
        if properties is None:
106
 
            self.properties.update(self.proxy.GetAll(
107
 
                client_interface,
108
 
                dbus_interface=dbus.PROPERTIES_IFACE))
109
 
 
110
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
111
 
 
112
 
    def properties_changed(self, interface, properties, invalidated):
113
 
        """This is called whenever we get a PropertiesChanged signal
114
 
        It updates the changed properties in the "properties" dict.
 
41
    def __init__(self, proxy_object=None, properties=None, *args,
 
42
                 **kwargs):
 
43
        self.proxy = proxy_object # Mandos Client proxy object
 
44
        
 
45
        if properties is None:
 
46
            self.properties = dict()
 
47
        else:
 
48
            self.properties = properties
 
49
        self.proxy.connect_to_signal(u"PropertyChanged",
 
50
                                     self.property_changed,
 
51
                                     client_interface,
 
52
                                     byte_arrays=True)
 
53
        
 
54
        if properties is None:
 
55
            self.properties.update(self.proxy.GetAll(client_interface,
 
56
                                                     dbus_interface =
 
57
                                                     dbus.PROPERTIES_IFACE))
 
58
        super(MandosClientPropertyCache, self).__init__(
 
59
            proxy_object=proxy_object,
 
60
            properties=properties, *args, **kwargs)
 
61
    
 
62
    def property_changed(self, property=None, value=None):
 
63
        """This is called whenever we get a PropertyChanged signal
 
64
        It updates the changed property in the "properties" dict.
115
65
        """
116
66
        # Update properties dict with new value
117
 
        if interface == client_interface:
118
 
            self.properties.update(properties)
119
 
 
120
 
    def delete(self):
121
 
        self.property_changed_match.remove()
 
67
        self.properties[property] = value
122
68
 
123
69
 
124
70
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
125
71
    """A Mandos Client which is visible on the screen.
126
72
    """
127
 
 
 
73
    
128
74
    def __init__(self, server_proxy_object=None, update_hook=None,
129
 
                 delete_hook=None, **kwargs):
 
75
                 delete_hook=None, logger=None, *args, **kwargs):
130
76
        # Called on update
131
77
        self.update_hook = update_hook
132
78
        # Called on delete
133
79
        self.delete_hook = delete_hook
134
80
        # Mandos Server proxy object
135
81
        self.server_proxy_object = server_proxy_object
136
 
 
137
 
        self._update_timer_callback_tag = None
138
 
 
 
82
        # Logger
 
83
        self.logger = logger
 
84
        
139
85
        # The widget shown normally
140
 
        self._text_widget = urwid.Text("")
 
86
        self._text_widget = urwid.Text(u"")
141
87
        # The widget shown when we have focus
142
 
        self._focus_text_widget = urwid.Text("")
143
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
88
        self._focus_text_widget = urwid.Text(u"")
 
89
        super(MandosClientWidget, self).__init__(
 
90
            update_hook=update_hook, delete_hook=delete_hook,
 
91
            *args, **kwargs)
144
92
        self.update()
145
93
        self.opened = False
146
 
 
147
 
        self.match_objects = (
148
 
            self.proxy.connect_to_signal("CheckerCompleted",
149
 
                                         self.checker_completed,
150
 
                                         client_interface,
151
 
                                         byte_arrays=True),
152
 
            self.proxy.connect_to_signal("CheckerStarted",
153
 
                                         self.checker_started,
154
 
                                         client_interface,
155
 
                                         byte_arrays=True),
156
 
            self.proxy.connect_to_signal("GotSecret",
157
 
                                         self.got_secret,
158
 
                                         client_interface,
159
 
                                         byte_arrays=True),
160
 
            self.proxy.connect_to_signal("NeedApproval",
161
 
                                         self.need_approval,
162
 
                                         client_interface,
163
 
                                         byte_arrays=True),
164
 
            self.proxy.connect_to_signal("Rejected",
165
 
                                         self.rejected,
166
 
                                         client_interface,
167
 
                                         byte_arrays=True))
168
 
        log.debug("Created client %s", self.properties["Name"])
169
 
 
170
 
    def using_timer(self, flag):
171
 
        """Call this method with True or False when timer should be
172
 
        activated or deactivated.
173
 
        """
174
 
        if flag and self._update_timer_callback_tag is None:
175
 
            # Will update the shown timer value every second
176
 
            self._update_timer_callback_tag = (
177
 
                GLib.timeout_add(1000,
178
 
                                 glib_safely(self.update_timer)))
179
 
        elif not (flag or self._update_timer_callback_tag is None):
180
 
            GLib.source_remove(self._update_timer_callback_tag)
181
 
            self._update_timer_callback_tag = None
182
 
 
 
94
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
95
                                     self.checker_completed,
 
96
                                     client_interface,
 
97
                                     byte_arrays=True)
 
98
        self.proxy.connect_to_signal(u"CheckerStarted",
 
99
                                     self.checker_started,
 
100
                                     client_interface,
 
101
                                     byte_arrays=True)
 
102
        self.proxy.connect_to_signal(u"GotSecret",
 
103
                                     self.got_secret,
 
104
                                     client_interface,
 
105
                                     byte_arrays=True)
 
106
        self.proxy.connect_to_signal(u"Rejected",
 
107
                                     self.rejected,
 
108
                                     client_interface,
 
109
                                     byte_arrays=True)
 
110
    
183
111
    def checker_completed(self, exitstatus, condition, command):
184
112
        if exitstatus == 0:
185
 
            log.debug('Checker for client %s (command "%s")'
186
 
                      " succeeded", self.properties["Name"], command)
187
 
            self.update()
 
113
            self.logger(u'Checker for client %s (command "%s")'
 
114
                        u' was successful'
 
115
                        % (self.properties[u"name"], command))
188
116
            return
189
 
        # Checker failed
190
117
        if os.WIFEXITED(condition):
191
 
            log.info('Checker for client %s (command "%s") failed'
192
 
                     " with exit code %d", self.properties["Name"],
193
 
                     command, os.WEXITSTATUS(condition))
194
 
        elif os.WIFSIGNALED(condition):
195
 
            log.info('Checker for client %s (command "%s") was'
196
 
                     " killed by signal %d", self.properties["Name"],
197
 
                     command, os.WTERMSIG(condition))
198
 
        self.update()
199
 
 
 
118
            self.logger(u'Checker for client %s (command "%s")'
 
119
                        u' failed with exit code %s'
 
120
                        % (self.properties[u"name"], command,
 
121
                           os.WEXITSTATUS(condition)))
 
122
            return
 
123
        if os.WIFSIGNALED(condition):
 
124
            self.logger(u'Checker for client %s (command "%s")'
 
125
                        u' was killed by signal %s'
 
126
                        % (self.properties[u"name"], command,
 
127
                           os.WTERMSIG(condition)))
 
128
            return
 
129
        if os.WCOREDUMP(condition):
 
130
            self.logger(u'Checker for client %s (command "%s")'
 
131
                        u' dumped core'
 
132
                        % (self.properties[u"name"], command))
 
133
        self.logger(u'Checker for client %s completed mysteriously')
 
134
    
200
135
    def checker_started(self, command):
201
 
        """Server signals that a checker started."""
202
 
        log.debug('Client %s started checker "%s"',
203
 
                  self.properties["Name"], command)
204
 
 
 
136
        self.logger(u'Client %s started checker "%s"'
 
137
                    % (self.properties[u"name"], unicode(command)))
 
138
    
205
139
    def got_secret(self):
206
 
        log.info("Client %s received its secret",
207
 
                 self.properties["Name"])
208
 
 
209
 
    def need_approval(self, timeout, default):
210
 
        if not default:
211
 
            message = "Client %s needs approval within %f seconds"
212
 
        else:
213
 
            message = "Client %s will get its secret in %f seconds"
214
 
        log.info(message, self.properties["Name"], timeout/1000)
215
 
 
216
 
    def rejected(self, reason):
217
 
        log.info("Client %s was rejected; reason: %s",
218
 
                 self.properties["Name"], reason)
219
 
 
 
140
        self.logger(u'Client %s received its secret'
 
141
                    % self.properties[u"name"])
 
142
    
 
143
    def rejected(self):
 
144
        self.logger(u'Client %s was rejected'
 
145
                    % self.properties[u"name"])
 
146
    
220
147
    def selectable(self):
221
148
        """Make this a "selectable" widget.
222
149
        This overrides the method from urwid.FlowWidget."""
223
150
        return True
224
 
 
225
 
    def rows(self, maxcolrow, focus=False):
 
151
    
 
152
    def rows(self, (maxcol,), focus=False):
226
153
        """How many rows this widget will occupy might depend on
227
154
        whether we have focus or not.
228
155
        This overrides the method from urwid.FlowWidget"""
229
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
230
 
 
 
156
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
157
    
231
158
    def current_widget(self, focus=False):
232
159
        if focus or self.opened:
233
160
            return self._focus_widget
234
161
        return self._widget
235
 
 
 
162
    
236
163
    def update(self):
237
164
        "Called when what is visible on the screen should be updated."
238
165
        # How to add standout mode to a style
239
 
        with_standout = {"normal": "standout",
240
 
                         "bold": "bold-standout",
241
 
                         "underline-blink":
242
 
                         "underline-blink-standout",
243
 
                         "bold-underline-blink":
244
 
                         "bold-underline-blink-standout",
245
 
                         }
246
 
 
 
166
        with_standout = { u"normal": u"standout",
 
167
                          u"bold": u"bold-standout",
 
168
                          u"underline-blink":
 
169
                              u"underline-blink-standout",
 
170
                          u"bold-underline-blink":
 
171
                              u"bold-underline-blink-standout",
 
172
                          }
 
173
        
247
174
        # Rebuild focus and non-focus widgets using current properties
248
 
 
249
 
        # Base part of a client. Name!
250
 
        base = "{name}: ".format(name=self.properties["Name"])
251
 
        if not self.properties["Enabled"]:
252
 
            message = "DISABLED"
253
 
            self.using_timer(False)
254
 
        elif self.properties["ApprovalPending"]:
255
 
            timeout = datetime.timedelta(
256
 
                milliseconds=self.properties["ApprovalDelay"])
257
 
            last_approval_request = isoformat_to_datetime(
258
 
                self.properties["LastApprovalRequest"])
259
 
            if last_approval_request is not None:
260
 
                timer = max(timeout - (datetime.datetime.utcnow()
261
 
                                       - last_approval_request),
262
 
                            datetime.timedelta())
263
 
            else:
264
 
                timer = datetime.timedelta()
265
 
            if self.properties["ApprovedByDefault"]:
266
 
                message = "Approval in {}. (d)eny?"
267
 
            else:
268
 
                message = "Denial in {}. (a)pprove?"
269
 
            message = message.format(str(timer).rsplit(".", 1)[0])
270
 
            self.using_timer(True)
271
 
        elif self.properties["LastCheckerStatus"] != 0:
272
 
            # When checker has failed, show timer until client expires
273
 
            expires = self.properties["Expires"]
274
 
            if expires == "":
275
 
                timer = datetime.timedelta(0)
276
 
            else:
277
 
                expires = (datetime.datetime.strptime
278
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
279
 
                timer = max(expires - datetime.datetime.utcnow(),
280
 
                            datetime.timedelta())
281
 
            message = ("A checker has failed! Time until client"
282
 
                       " gets disabled: {}"
283
 
                       .format(str(timer).rsplit(".", 1)[0]))
284
 
            self.using_timer(True)
285
 
        else:
286
 
            message = "enabled"
287
 
            self.using_timer(False)
288
 
        self._text = "{}{}".format(base, message)
289
 
 
 
175
        self._text = (u'%(name)s: %(enabled)s'
 
176
                      % { u"name": self.properties[u"name"],
 
177
                          u"enabled":
 
178
                              (u"enabled"
 
179
                               if self.properties[u"enabled"]
 
180
                               else u"DISABLED")})
290
181
        if not urwid.supports_unicode():
291
182
            self._text = self._text.encode("ascii", "replace")
292
 
        textlist = [("normal", self._text)]
 
183
        textlist = [(u"normal", self._text)]
293
184
        self._text_widget.set_text(textlist)
294
185
        self._focus_text_widget.set_text([(with_standout[text[0]],
295
186
                                           text[1])
302
193
        # Run update hook, if any
303
194
        if self.update_hook is not None:
304
195
            self.update_hook()
305
 
 
306
 
    def update_timer(self):
307
 
        """called by GLib. Will indefinitely loop until
308
 
        GLib.source_remove() on tag is called
309
 
        """
310
 
        self.update()
311
 
        return True             # Keep calling this
312
 
 
313
 
    def delete(self, **kwargs):
314
 
        if self._update_timer_callback_tag is not None:
315
 
            GLib.source_remove(self._update_timer_callback_tag)
316
 
            self._update_timer_callback_tag = None
317
 
        for match in self.match_objects:
318
 
            match.remove()
319
 
        self.match_objects = ()
 
196
    
 
197
    def delete(self):
320
198
        if self.delete_hook is not None:
321
199
            self.delete_hook(self)
322
 
        return super(MandosClientWidget, self).delete(**kwargs)
323
 
 
324
 
    def render(self, maxcolrow, focus=False):
 
200
    
 
201
    def render(self, (maxcol,), focus=False):
325
202
        """Render differently if we have focus.
326
203
        This overrides the method from urwid.FlowWidget"""
327
 
        return self.current_widget(focus).render(maxcolrow,
 
204
        return self.current_widget(focus).render((maxcol,),
328
205
                                                 focus=focus)
329
 
 
330
 
    def keypress(self, maxcolrow, key):
 
206
    
 
207
    def keypress(self, (maxcol,), key):
331
208
        """Handle keys.
332
209
        This overrides the method from urwid.FlowWidget"""
333
 
        if key == "+":
334
 
            self.proxy.Set(client_interface, "Enabled",
335
 
                           dbus.Boolean(True), ignore_reply=True,
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
337
 
        elif key == "-":
338
 
            self.proxy.Set(client_interface, "Enabled", False,
339
 
                           ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
341
 
        elif key == "a":
342
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
343
 
                               dbus_interface=client_interface,
344
 
                               ignore_reply=True)
345
 
        elif key == "d":
346
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
347
 
                               dbus_interface=client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
210
        if key == u"e" or key == u"+":
 
211
            self.proxy.Enable()
 
212
        elif key == u"d" or key == u"-":
 
213
            self.proxy.Disable()
 
214
        elif key == u"r" or key == u"_" or key == u"ctrl k":
350
215
            self.server_proxy_object.RemoveClient(self.proxy
351
 
                                                  .object_path,
352
 
                                                  ignore_reply=True)
353
 
        elif key == "s":
354
 
            self.proxy.Set(client_interface, "CheckerRunning",
355
 
                           dbus.Boolean(True), ignore_reply=True,
356
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
357
 
        elif key == "S":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(False), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
361
 
        elif key == "C":
362
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
363
 
                                 ignore_reply=True)
 
216
                                                  .object_path)
 
217
        elif key == u"s":
 
218
            self.proxy.StartChecker()
 
219
        elif key == u"S":
 
220
            self.proxy.StopChecker()
 
221
        elif key == u"C":
 
222
            self.proxy.CheckedOK()
364
223
        # xxx
365
 
#         elif key == "p" or key == "=":
 
224
#         elif key == u"p" or key == "=":
366
225
#             self.proxy.pause()
367
 
#         elif key == "u" or key == ":":
 
226
#         elif key == u"u" or key == ":":
368
227
#             self.proxy.unpause()
369
 
#         elif key == "RET":
 
228
#         elif key == u"RET":
370
229
#             self.open()
371
230
        else:
372
231
            return key
373
 
 
374
 
    def properties_changed(self, interface, properties, invalidated):
375
 
        """Call self.update() if any properties changed.
 
232
    
 
233
    def property_changed(self, property=None, value=None,
 
234
                         *args, **kwargs):
 
235
        """Call self.update() if old value is not new value.
376
236
        This overrides the method from MandosClientPropertyCache"""
377
 
        old_values = {key: self.properties.get(key)
378
 
                      for key in properties.keys()}
379
 
        super(MandosClientWidget, self).properties_changed(
380
 
            interface, properties, invalidated)
381
 
        if any(old_values[key] != self.properties.get(key)
382
 
               for key in old_values):
 
237
        property_name = unicode(property)
 
238
        old_value = self.properties.get(property_name)
 
239
        super(MandosClientWidget, self).property_changed(
 
240
            property=property, value=value, *args, **kwargs)
 
241
        if self.properties.get(property_name) != old_value:
383
242
            self.update()
384
243
 
385
244
 
386
 
def glib_safely(func, retval=True):
387
 
    def safe_func(*args, **kwargs):
388
 
        try:
389
 
            return func(*args, **kwargs)
390
 
        except Exception:
391
 
            log.exception("")
392
 
            return retval
393
 
    return safe_func
394
 
 
395
 
 
396
245
class ConstrainedListBox(urwid.ListBox):
397
246
    """Like a normal urwid.ListBox, but will consume all "up" or
398
247
    "down" key presses, thus not allowing any containing widgets to
399
248
    use them as an excuse to shift focus away from this widget.
400
249
    """
401
 
    def keypress(self, *args, **kwargs):
402
 
        ret = (super(ConstrainedListBox, self)
403
 
               .keypress(*args, **kwargs))
404
 
        if ret in ("up", "down"):
 
250
    def keypress(self, (maxcol, maxrow), key):
 
251
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
252
        if ret in (u"up", u"down"):
405
253
            return
406
254
        return ret
407
255
 
412
260
    """
413
261
    def __init__(self, max_log_length=1000):
414
262
        DBusGMainLoop(set_as_default=True)
415
 
 
 
263
        
416
264
        self.screen = urwid.curses_display.Screen()
417
 
 
 
265
        
418
266
        self.screen.register_palette((
419
 
                ("normal",
420
 
                 "default", "default", None),
421
 
                ("bold",
422
 
                 "bold", "default", "bold"),
423
 
                ("underline-blink",
424
 
                 "underline,blink", "default", "underline,blink"),
425
 
                ("standout",
426
 
                 "standout", "default", "standout"),
427
 
                ("bold-underline-blink",
428
 
                 "bold,underline,blink", "default",
429
 
                 "bold,underline,blink"),
430
 
                ("bold-standout",
431
 
                 "bold,standout", "default", "bold,standout"),
432
 
                ("underline-blink-standout",
433
 
                 "underline,blink,standout", "default",
434
 
                 "underline,blink,standout"),
435
 
                ("bold-underline-blink-standout",
436
 
                 "bold,underline,blink,standout", "default",
437
 
                 "bold,underline,blink,standout"),
 
267
                (u"normal",
 
268
                 u"default", u"default", None),
 
269
                (u"bold",
 
270
                 u"default", u"default", u"bold"),
 
271
                (u"underline-blink",
 
272
                 u"default", u"default", u"underline"),
 
273
                (u"standout",
 
274
                 u"default", u"default", u"standout"),
 
275
                (u"bold-underline-blink",
 
276
                 u"default", u"default", (u"bold", u"underline")),
 
277
                (u"bold-standout",
 
278
                 u"default", u"default", (u"bold", u"standout")),
 
279
                (u"underline-blink-standout",
 
280
                 u"default", u"default", (u"underline", u"standout")),
 
281
                (u"bold-underline-blink-standout",
 
282
                 u"default", u"default", (u"bold", u"underline",
 
283
                                          u"standout")),
438
284
                ))
439
 
 
 
285
        
440
286
        if urwid.supports_unicode():
441
 
            self.divider = "─"  # \u2500
 
287
            self.divider = u"─" # \u2500
 
288
            #self.divider = u"━" # \u2501
442
289
        else:
443
 
            self.divider = "_"  # \u005f
444
 
 
 
290
            #self.divider = u"-" # \u002d
 
291
            self.divider = u"_" # \u005f
 
292
        
445
293
        self.screen.start()
446
 
 
 
294
        
447
295
        self.size = self.screen.get_cols_rows()
448
 
 
 
296
        
449
297
        self.clients = urwid.SimpleListWalker([])
450
298
        self.clients_dict = {}
451
 
 
 
299
        
452
300
        # We will add Text widgets to this list
453
 
        self.log = urwid.SimpleListWalker([])
 
301
        self.log = []
454
302
        self.max_log_length = max_log_length
455
 
 
 
303
        
456
304
        # We keep a reference to the log widget so we can remove it
457
305
        # from the ListWalker without it getting destroyed
458
306
        self.logbox = ConstrainedListBox(self.log)
459
 
 
 
307
        
460
308
        # This keeps track of whether self.uilist currently has
461
309
        # self.logbox in it or not
462
310
        self.log_visible = True
463
 
        self.log_wrap = "any"
464
 
 
465
 
        self.loghandler = UILogHandler(self)
466
 
 
 
311
        self.log_wrap = u"any"
 
312
        
467
313
        self.rebuild()
468
 
        self.add_log_line(("bold",
469
 
                           "Mandos Monitor version " + version))
470
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
471
 
 
472
 
        self.busname = domain + ".Mandos"
473
 
        self.main_loop = GLib.MainLoop()
474
 
 
475
 
    def client_not_found(self, key_id, address):
476
 
        log.info("Client with address %s and key ID %s could"
477
 
                 " not be found", address, key_id)
478
 
 
 
314
        self.log_message_raw((u"bold",
 
315
                              u"Mandos Monitor version " + version))
 
316
        self.log_message_raw((u"bold",
 
317
                              u"q: Quit  ?: Help"))
 
318
        
 
319
        self.busname = domain + '.Mandos'
 
320
        self.main_loop = gobject.MainLoop()
 
321
        self.bus = dbus.SystemBus()
 
322
        mandos_dbus_objc = self.bus.get_object(
 
323
            self.busname, u"/", follow_name_owner_changes=True)
 
324
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
325
                                          dbus_interface
 
326
                                          = server_interface)
 
327
        try:
 
328
            mandos_clients = (self.mandos_serv
 
329
                              .GetAllClientsWithProperties())
 
330
        except dbus.exceptions.DBusException:
 
331
            mandos_clients = dbus.Dictionary()
 
332
        
 
333
        (self.mandos_serv
 
334
         .connect_to_signal(u"ClientRemoved",
 
335
                            self.find_and_remove_client,
 
336
                            dbus_interface=server_interface,
 
337
                            byte_arrays=True))
 
338
        (self.mandos_serv
 
339
         .connect_to_signal(u"ClientAdded",
 
340
                            self.add_new_client,
 
341
                            dbus_interface=server_interface,
 
342
                            byte_arrays=True))
 
343
        (self.mandos_serv
 
344
         .connect_to_signal(u"ClientNotFound",
 
345
                            self.client_not_found,
 
346
                            dbus_interface=server_interface,
 
347
                            byte_arrays=True))
 
348
        for path, client in mandos_clients.iteritems():
 
349
            client_proxy_object = self.bus.get_object(self.busname,
 
350
                                                      path)
 
351
            self.add_client(MandosClientWidget(server_proxy_object
 
352
                                               =self.mandos_serv,
 
353
                                               proxy_object
 
354
                                               =client_proxy_object,
 
355
                                               properties=client,
 
356
                                               update_hook
 
357
                                               =self.refresh,
 
358
                                               delete_hook
 
359
                                               =self.remove_client,
 
360
                                               logger
 
361
                                               =self.log_message),
 
362
                            path=path)
 
363
    
 
364
    def client_not_found(self, fingerprint, address):
 
365
        self.log_message((u"Client with address %s and fingerprint %s"
 
366
                          u" could not be found" % (address,
 
367
                                                    fingerprint)))
 
368
    
479
369
    def rebuild(self):
480
370
        """This rebuilds the User Interface.
481
371
        Call this when the widget layout needs to change"""
482
372
        self.uilist = []
483
 
        # self.uilist.append(urwid.ListBox(self.clients))
484
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
485
 
                                                          clients),
486
 
                                       # header=urwid.Divider(),
 
373
        #self.uilist.append(urwid.ListBox(self.clients))
 
374
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
375
                                       #header=urwid.Divider(),
487
376
                                       header=None,
488
 
                                       footer=urwid.Divider(
489
 
                                           div_char=self.divider)))
 
377
                                       footer=urwid.Divider(div_char=self.divider)))
490
378
        if self.log_visible:
491
379
            self.uilist.append(self.logbox)
 
380
            pass
492
381
        self.topwidget = urwid.Pile(self.uilist)
493
 
 
494
 
    def add_log_line(self, markup):
 
382
    
 
383
    def log_message(self, message):
 
384
        timestamp = datetime.datetime.now().isoformat()
 
385
        self.log_message_raw(timestamp + u": " + message)
 
386
    
 
387
    def log_message_raw(self, markup):
 
388
        """Add a log message to the log buffer."""
495
389
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
496
 
        if self.max_log_length:
497
 
            if len(self.log) > self.max_log_length:
498
 
                del self.log[0:(len(self.log) - self.max_log_length)]
499
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
500
 
                              coming_from="above")
 
390
        if (self.max_log_length
 
391
            and len(self.log) > self.max_log_length):
 
392
            del self.log[0:len(self.log)-self.max_log_length-1]
 
393
        self.logbox.set_focus(len(self.logbox.body.contents),
 
394
                              coming_from=u"above")
501
395
        self.refresh()
502
 
 
 
396
    
503
397
    def toggle_log_display(self):
504
398
        """Toggle visibility of the log buffer."""
505
399
        self.log_visible = not self.log_visible
506
400
        self.rebuild()
507
 
        log.debug("Log visibility changed to: %s", self.log_visible)
508
 
 
 
401
        self.log_message(u"Log visibility changed to: "
 
402
                         + unicode(self.log_visible))
 
403
    
509
404
    def change_log_display(self):
510
405
        """Change type of log display.
511
406
        Currently, this toggles wrapping of text lines."""
512
 
        if self.log_wrap == "clip":
513
 
            self.log_wrap = "any"
 
407
        if self.log_wrap == u"clip":
 
408
            self.log_wrap = u"any"
514
409
        else:
515
 
            self.log_wrap = "clip"
 
410
            self.log_wrap = u"clip"
516
411
        for textwidget in self.log:
517
412
            textwidget.set_wrap_mode(self.log_wrap)
518
 
        log.debug("Wrap mode: %s", self.log_wrap)
519
 
 
520
 
    def find_and_remove_client(self, path, interfaces):
521
 
        """Find a client by its object path and remove it.
522
 
 
523
 
        This is connected to the InterfacesRemoved signal from the
 
413
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
414
    
 
415
    def find_and_remove_client(self, path, name):
 
416
        """Find an client from its object path and remove it.
 
417
        
 
418
        This is connected to the ClientRemoved signal from the
524
419
        Mandos server object."""
525
 
        if client_interface not in interfaces:
526
 
            # Not a Mandos client object; ignore
527
 
            return
528
420
        try:
529
421
            client = self.clients_dict[path]
530
422
        except KeyError:
531
423
            # not found?
532
 
            log.warning("Unknown client %s removed", path)
533
 
            return
534
 
        client.delete()
535
 
 
536
 
    def add_new_client(self, path, ifs_and_props):
537
 
        """Find a client by its object path and remove it.
538
 
 
539
 
        This is connected to the InterfacesAdded signal from the
540
 
        Mandos server object.
541
 
        """
542
 
        if client_interface not in ifs_and_props:
543
 
            # Not a Mandos client object; ignore
544
 
            return
 
424
            return
 
425
        self.remove_client(client, path)
 
426
    
 
427
    def add_new_client(self, path, properties):
545
428
        client_proxy_object = self.bus.get_object(self.busname, path)
546
 
        self.add_client(MandosClientWidget(
547
 
            server_proxy_object=self.mandos_serv,
548
 
            proxy_object=client_proxy_object,
549
 
            update_hook=self.refresh,
550
 
            delete_hook=self.remove_client,
551
 
            properties=dict(ifs_and_props[client_interface])),
 
429
        self.add_client(MandosClientWidget(server_proxy_object
 
430
                                           =self.mandos_serv,
 
431
                                           proxy_object
 
432
                                           =client_proxy_object,
 
433
                                           properties=properties,
 
434
                                           update_hook
 
435
                                           =self.refresh,
 
436
                                           delete_hook
 
437
                                           =self.remove_client),
552
438
                        path=path)
553
 
 
 
439
    
554
440
    def add_client(self, client, path=None):
555
441
        self.clients.append(client)
556
442
        if path is None:
557
443
            path = client.proxy.object_path
558
444
        self.clients_dict[path] = client
559
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
445
        self.clients.sort(None, lambda c: c.properties[u"name"])
560
446
        self.refresh()
561
 
 
 
447
    
562
448
    def remove_client(self, client, path=None):
563
449
        self.clients.remove(client)
564
450
        if path is None:
565
451
            path = client.proxy.object_path
566
452
        del self.clients_dict[path]
 
453
        if not self.clients_dict:
 
454
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
455
            # is completely emptied, we need to recreate it.
 
456
            self.clients = urwid.SimpleListWalker([])
 
457
            self.rebuild()
567
458
        self.refresh()
568
 
 
 
459
    
569
460
    def refresh(self):
570
461
        """Redraw the screen"""
571
462
        canvas = self.topwidget.render(self.size, focus=True)
572
463
        self.screen.draw_screen(self.size, canvas)
573
 
 
 
464
    
574
465
    def run(self):
575
466
        """Start the main loop and exit when it's done."""
576
 
        log.addHandler(self.loghandler)
577
 
        self.orig_log_propagate = log.propagate
578
 
        log.propagate = False
579
 
        self.orig_log_level = log.level
580
 
        log.setLevel("INFO")
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(
585
 
            mandos_dbus_objc, dbus_interface=server_interface)
586
 
        try:
587
 
            mandos_clients = (self.mandos_serv
588
 
                              .GetAllClientsWithProperties())
589
 
            if not mandos_clients:
590
 
                log.warning("Note: Server has no clients.")
591
 
        except dbus.exceptions.DBusException:
592
 
            log.warning("Note: No Mandos server running.")
593
 
            mandos_clients = dbus.Dictionary()
594
 
 
595
 
        (self.mandos_serv
596
 
         .connect_to_signal("InterfacesRemoved",
597
 
                            self.find_and_remove_client,
598
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
599
 
                            byte_arrays=True))
600
 
        (self.mandos_serv
601
 
         .connect_to_signal("InterfacesAdded",
602
 
                            self.add_new_client,
603
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
604
 
                            byte_arrays=True))
605
 
        (self.mandos_serv
606
 
         .connect_to_signal("ClientNotFound",
607
 
                            self.client_not_found,
608
 
                            dbus_interface=server_interface,
609
 
                            byte_arrays=True))
610
 
        for path, client in mandos_clients.items():
611
 
            client_proxy_object = self.bus.get_object(self.busname,
612
 
                                                      path)
613
 
            self.add_client(MandosClientWidget(
614
 
                server_proxy_object=self.mandos_serv,
615
 
                proxy_object=client_proxy_object,
616
 
                properties=client,
617
 
                update_hook=self.refresh,
618
 
                delete_hook=self.remove_client),
619
 
                            path=path)
620
 
 
621
467
        self.refresh()
622
 
        self._input_callback_tag = (
623
 
            GLib.io_add_watch(
624
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
625
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
626
 
                glib_safely(self.process_input)))
 
468
        self._input_callback_tag = (gobject.io_add_watch
 
469
                                    (sys.stdin.fileno(),
 
470
                                     gobject.IO_IN,
 
471
                                     self.process_input))
627
472
        self.main_loop.run()
628
473
        # Main loop has finished, we should close everything now
629
 
        GLib.source_remove(self._input_callback_tag)
630
 
        with warnings.catch_warnings():
631
 
            warnings.simplefilter("ignore", BytesWarning)
632
 
            self.screen.stop()
633
 
 
 
474
        gobject.source_remove(self._input_callback_tag)
 
475
        self.screen.stop()
 
476
    
634
477
    def stop(self):
635
478
        self.main_loop.quit()
636
 
        log.removeHandler(self.loghandler)
637
 
        log.propagate = self.orig_log_propagate
638
 
 
 
479
    
639
480
    def process_input(self, source, condition):
640
481
        keys = self.screen.get_input()
641
 
        translations = {"ctrl n": "down",       # Emacs
642
 
                        "ctrl p": "up",         # Emacs
643
 
                        "ctrl v": "page down",  # Emacs
644
 
                        "meta v": "page up",    # Emacs
645
 
                        " ": "page down",       # less
646
 
                        "f": "page down",       # less
647
 
                        "b": "page up",         # less
648
 
                        "j": "down",            # vi
649
 
                        "k": "up",              # vi
650
 
                        }
 
482
        translations = { u"ctrl n": u"down",      # Emacs
 
483
                         u"ctrl p": u"up",        # Emacs
 
484
                         u"ctrl v": u"page down", # Emacs
 
485
                         u"meta v": u"page up",   # Emacs
 
486
                         u" ": u"page down",      # less
 
487
                         u"f": u"page down",      # less
 
488
                         u"b": u"page up",        # less
 
489
                         u"j": u"down",           # vi
 
490
                         u"k": u"up",             # vi
 
491
                         }
651
492
        for key in keys:
652
493
            try:
653
494
                key = translations[key]
654
495
            except KeyError:    # :-)
655
496
                pass
656
 
 
657
 
            if key == "q" or key == "Q":
 
497
            
 
498
            if key == u"q" or key == u"Q":
658
499
                self.stop()
659
500
                break
660
 
            elif key == "window resize":
 
501
            elif key == u"window resize":
661
502
                self.size = self.screen.get_cols_rows()
662
503
                self.refresh()
663
 
            elif key == "ctrl l":
664
 
                self.screen.clear()
 
504
            elif key == u"\f":  # Ctrl-L
665
505
                self.refresh()
666
 
            elif key == "l" or key == "D":
 
506
            elif key == u"l" or key == u"D":
667
507
                self.toggle_log_display()
668
508
                self.refresh()
669
 
            elif key == "w" or key == "i":
 
509
            elif key == u"w" or key == u"i":
670
510
                self.change_log_display()
671
511
                self.refresh()
672
 
            elif key == "?" or key == "f1" or key == "esc":
 
512
            elif key == u"?" or key == u"f1" or key == u"esc":
673
513
                if not self.log_visible:
674
514
                    self.log_visible = True
675
515
                    self.rebuild()
676
 
                self.add_log_line(("bold",
677
 
                                   "  ".join(("q: Quit",
678
 
                                              "?: Help",
679
 
                                              "l: Log window toggle",
680
 
                                              "TAB: Switch window",
681
 
                                              "w: Wrap (log lines)",
682
 
                                              "v: Toggle verbose log",
683
 
                                   ))))
684
 
                self.add_log_line(("bold",
685
 
                                   "  ".join(("Clients:",
686
 
                                              "+: Enable",
687
 
                                              "-: Disable",
688
 
                                              "R: Remove",
689
 
                                              "s: Start new checker",
690
 
                                              "S: Stop checker",
691
 
                                              "C: Checker OK",
692
 
                                              "a: Approve",
693
 
                                              "d: Deny",
694
 
                                   ))))
 
516
                self.log_message_raw((u"bold",
 
517
                                      u"  ".
 
518
                                      join((u"q: Quit",
 
519
                                            u"?: Help",
 
520
                                            u"l: Log window toggle",
 
521
                                            u"TAB: Switch window",
 
522
                                            u"w: Wrap (log)"))))
 
523
                self.log_message_raw((u"bold",
 
524
                                      u"  "
 
525
                                      .join((u"Clients:",
 
526
                                             u"e: Enable",
 
527
                                             u"d: Disable",
 
528
                                             u"r: Remove",
 
529
                                             u"s: Start new checker",
 
530
                                             u"S: Stop checker",
 
531
                                             u"C: Checker OK"))))
695
532
                self.refresh()
696
 
            elif key == "tab":
 
533
            elif key == u"tab":
697
534
                if self.topwidget.get_focus() is self.logbox:
698
535
                    self.topwidget.set_focus(0)
699
536
                else:
700
537
                    self.topwidget.set_focus(self.logbox)
701
538
                self.refresh()
702
 
            elif key == "v":
703
 
                if log.level < logging.INFO:
704
 
                    log.setLevel(logging.INFO)
705
 
                    log.info("Verbose mode: Off")
706
 
                else:
707
 
                    log.setLevel(logging.NOTSET)
708
 
                    log.info("Verbose mode: On")
709
 
            # elif (key == "end" or key == "meta >" or key == "G"
710
 
            #       or key == ">"):
711
 
            #     pass            # xxx end-of-buffer
712
 
            # elif (key == "home" or key == "meta <" or key == "g"
713
 
            #       or key == "<"):
714
 
            #     pass            # xxx beginning-of-buffer
715
 
            # elif key == "ctrl e" or key == "$":
716
 
            #     pass            # xxx move-end-of-line
717
 
            # elif key == "ctrl a" or key == "^":
718
 
            #     pass            # xxx move-beginning-of-line
719
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
720
 
            #     pass            # xxx left
721
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
722
 
            #     pass            # xxx right
723
 
            # elif key == "a":
724
 
            #     pass            # scroll up log
725
 
            # elif key == "z":
726
 
            #     pass            # scroll down log
 
539
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
540
            #      or key == u">"):
 
541
            #    pass            # xxx end-of-buffer
 
542
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
543
            #      or key == u"<"):
 
544
            #    pass            # xxx beginning-of-buffer
 
545
            #elif key == u"ctrl e" or key == u"$":
 
546
            #    pass            # xxx move-end-of-line
 
547
            #elif key == u"ctrl a" or key == u"^":
 
548
            #    pass            # xxx move-beginning-of-line
 
549
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
550
            #    pass            # xxx left
 
551
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
552
            #    pass            # xxx right
 
553
            #elif key == u"a":
 
554
            #    pass            # scroll up log
 
555
            #elif key == u"z":
 
556
            #    pass            # scroll down log
727
557
            elif self.topwidget.selectable():
728
558
                self.topwidget.keypress(self.size, key)
729
559
                self.refresh()
730
560
        return True
731
561
 
732
 
 
733
 
class UILogHandler(logging.Handler):
734
 
    def __init__(self, ui, *args, **kwargs):
735
 
        self.ui = ui
736
 
        super(UILogHandler, self).__init__(*args, **kwargs)
737
 
        self.setFormatter(
738
 
            logging.Formatter("%(asctime)s: %(message)s"))
739
 
    def emit(self, record):
740
 
        msg = self.format(record)
741
 
        if record.levelno > logging.INFO:
742
 
            msg = ("bold", msg)
743
 
        self.ui.add_log_line(msg)
744
 
 
745
 
 
746
562
ui = UserInterface()
747
563
try:
748
564
    ui.run()
749
 
except KeyboardInterrupt:
750
 
    with warnings.catch_warnings():
751
 
        warnings.filterwarnings("ignore", "", BytesWarning)
752
 
        ui.screen.stop()
753
 
except Exception:
754
 
    with warnings.catch_warnings():
755
 
        warnings.filterwarnings("ignore", "", BytesWarning)
756
 
        ui.screen.stop()
 
565
except:
 
566
    ui.screen.stop()
757
567
    raise