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  • Committer: Björn Påhlsson
  • Date: 2010-09-07 16:48:58 UTC
  • mto: (237.7.1 mandos)
  • mto: This revision was merged to the branch mainline in revision 270.
  • Revision ID: belorn@fukt.bsnet.se-20100907164858-tcg8hkxdj41zizac
mandos server: Added debuglevel that adjust at what level information
               should be reported.
plugin-runner, askpass-fifo, password-prompt, splasy, usplash:
               Using error instead of perror

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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
 
    __metaclass__ = type
51
 
    str = unicode
52
 
 
53
 
log = logging.getLogger(os.path.basename(sys.argv[0]))
54
 
logging.basicConfig(level="NOTSET", # Show all messages
55
 
                    format="%(message)s") # Show basic log messages
56
 
 
57
 
logging.captureWarnings(True)   # Show warnings via the logging system
58
 
 
59
 
locale.setlocale(locale.LC_ALL, "")
60
 
 
61
 
logging.getLogger("dbus.proxies").setLevel(logging.CRITICAL)
 
20
import UserList
 
21
 
 
22
import locale
 
23
 
 
24
locale.setlocale(locale.LC_ALL, u'')
 
25
 
 
26
import logging
 
27
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
62
28
 
63
29
# Some useful constants
64
 
domain = "se.recompile"
65
 
server_interface = domain + ".Mandos"
66
 
client_interface = domain + ".Mandos.Client"
67
 
version = "1.8.9"
68
 
 
69
 
try:
70
 
    dbus.OBJECT_MANAGER_IFACE
71
 
except AttributeError:
72
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
73
 
 
74
 
 
75
 
def isoformat_to_datetime(iso):
76
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
77
 
    if not iso:
78
 
        return None
79
 
    d, t = iso.split("T", 1)
80
 
    year, month, day = d.split("-", 2)
81
 
    hour, minute, second = t.split(":", 2)
82
 
    second, fraction = divmod(float(second), 1)
83
 
    return datetime.datetime(int(year),
84
 
                             int(month),
85
 
                             int(day),
86
 
                             int(hour),
87
 
                             int(minute),
88
 
                             int(second),            # Whole seconds
89
 
                             int(fraction*1000000))  # Microseconds
90
 
 
91
 
 
92
 
class MandosClientPropertyCache:
 
30
domain = 'se.bsnet.fukt'
 
31
server_interface = domain + '.Mandos'
 
32
client_interface = domain + '.Mandos.Client'
 
33
version = "1.0.15"
 
34
 
 
35
# Always run in monochrome mode
 
36
urwid.curses_display.curses.has_colors = lambda : False
 
37
 
 
38
# Urwid doesn't support blinking, but we want it.  Since we have no
 
39
# use for underline on its own, we make underline also always blink.
 
40
urwid.curses_display.curses.A_UNDERLINE |= (
 
41
    urwid.curses_display.curses.A_BLINK)
 
42
 
 
43
class MandosClientPropertyCache(object):
93
44
    """This wraps a Mandos Client D-Bus proxy object, caches the
94
45
    properties and calls a hook function when any of them are
95
46
    changed.
96
47
    """
97
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
98
 
        self.proxy = proxy_object  # Mandos Client proxy object
99
 
        self.properties = dict() if properties is None else properties
100
 
        self.property_changed_match = (
101
 
            self.proxy.connect_to_signal("PropertiesChanged",
102
 
                                         self.properties_changed,
103
 
                                         dbus.PROPERTIES_IFACE,
104
 
                                         byte_arrays=True))
105
 
 
106
 
        if properties is None:
107
 
            self.properties.update(self.proxy.GetAll(
108
 
                client_interface,
109
 
                dbus_interface=dbus.PROPERTIES_IFACE))
110
 
 
111
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
112
 
 
113
 
    def properties_changed(self, interface, properties, invalidated):
114
 
        """This is called whenever we get a PropertiesChanged signal
115
 
        It updates the changed properties in the "properties" dict.
 
48
    def __init__(self, proxy_object=None, *args, **kwargs):
 
49
        self.proxy = proxy_object # Mandos Client proxy object
 
50
        
 
51
        self.properties = dict()
 
52
        self.proxy.connect_to_signal(u"PropertyChanged",
 
53
                                     self.property_changed,
 
54
                                     client_interface,
 
55
                                     byte_arrays=True)
 
56
        
 
57
        self.properties.update(
 
58
            self.proxy.GetAll(client_interface,
 
59
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
60
 
 
61
        #XXX This break good super behaviour!
 
62
#        super(MandosClientPropertyCache, self).__init__(
 
63
#            *args, **kwargs)
 
64
    
 
65
    def property_changed(self, property=None, value=None):
 
66
        """This is called whenever we get a PropertyChanged signal
 
67
        It updates the changed property in the "properties" dict.
116
68
        """
117
69
        # Update properties dict with new value
118
 
        if interface == client_interface:
119
 
            self.properties.update(properties)
120
 
 
121
 
    def delete(self):
122
 
        self.property_changed_match.remove()
 
70
        self.properties[property] = value
123
71
 
124
72
 
125
73
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
126
74
    """A Mandos Client which is visible on the screen.
127
75
    """
128
 
 
 
76
    
129
77
    def __init__(self, server_proxy_object=None, update_hook=None,
130
 
                 delete_hook=None, **kwargs):
 
78
                 delete_hook=None, logger=None, *args, **kwargs):
131
79
        # Called on update
132
80
        self.update_hook = update_hook
133
81
        # Called on delete
134
82
        self.delete_hook = delete_hook
135
83
        # Mandos Server proxy object
136
84
        self.server_proxy_object = server_proxy_object
137
 
 
138
 
        self._update_timer_callback_tag = None
139
 
 
 
85
        # Logger
 
86
        self.logger = logger
 
87
        
140
88
        # The widget shown normally
141
 
        self._text_widget = urwid.Text("")
 
89
        self._text_widget = urwid.Text(u"")
142
90
        # The widget shown when we have focus
143
 
        self._focus_text_widget = urwid.Text("")
144
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
91
        self._focus_text_widget = urwid.Text(u"")
 
92
        super(MandosClientWidget, self).__init__(
 
93
            update_hook=update_hook, delete_hook=delete_hook,
 
94
            *args, **kwargs)
145
95
        self.update()
146
96
        self.opened = False
147
 
 
148
 
        self.match_objects = (
149
 
            self.proxy.connect_to_signal("CheckerCompleted",
150
 
                                         self.checker_completed,
151
 
                                         client_interface,
152
 
                                         byte_arrays=True),
153
 
            self.proxy.connect_to_signal("CheckerStarted",
154
 
                                         self.checker_started,
155
 
                                         client_interface,
156
 
                                         byte_arrays=True),
157
 
            self.proxy.connect_to_signal("GotSecret",
158
 
                                         self.got_secret,
159
 
                                         client_interface,
160
 
                                         byte_arrays=True),
161
 
            self.proxy.connect_to_signal("NeedApproval",
162
 
                                         self.need_approval,
163
 
                                         client_interface,
164
 
                                         byte_arrays=True),
165
 
            self.proxy.connect_to_signal("Rejected",
166
 
                                         self.rejected,
167
 
                                         client_interface,
168
 
                                         byte_arrays=True))
169
 
        log.debug("Created client %s", self.properties["Name"])
170
 
 
171
 
    def using_timer(self, flag):
172
 
        """Call this method with True or False when timer should be
173
 
        activated or deactivated.
174
 
        """
175
 
        if flag and self._update_timer_callback_tag is None:
176
 
            # Will update the shown timer value every second
177
 
            self._update_timer_callback_tag = (
178
 
                GLib.timeout_add(1000,
179
 
                                 glib_safely(self.update_timer)))
180
 
        elif not (flag or self._update_timer_callback_tag is None):
181
 
            GLib.source_remove(self._update_timer_callback_tag)
182
 
            self._update_timer_callback_tag = None
183
 
 
 
97
        self.proxy.connect_to_signal(u"CheckerCompleted",
 
98
                                     self.checker_completed,
 
99
                                     client_interface,
 
100
                                     byte_arrays=True)
 
101
        self.proxy.connect_to_signal(u"CheckerStarted",
 
102
                                     self.checker_started,
 
103
                                     client_interface,
 
104
                                     byte_arrays=True)
 
105
        self.proxy.connect_to_signal(u"GotSecret",
 
106
                                     self.got_secret,
 
107
                                     client_interface,
 
108
                                     byte_arrays=True)
 
109
        self.proxy.connect_to_signal(u"NeedApproval",
 
110
                                     self.need_approval,
 
111
                                     client_interface,
 
112
                                     byte_arrays=True)
 
113
        self.proxy.connect_to_signal(u"Rejected",
 
114
                                     self.rejected,
 
115
                                     client_interface,
 
116
                                     byte_arrays=True)
 
117
    
184
118
    def checker_completed(self, exitstatus, condition, command):
185
119
        if exitstatus == 0:
186
 
            log.debug('Checker for client %s (command "%s")'
187
 
                      " succeeded", self.properties["Name"], command)
188
 
            self.update()
 
120
            #self.logger(u'Checker for client %s (command "%s")'
 
121
            #            u' was successful'
 
122
            #            % (self.properties[u"name"], command))
189
123
            return
190
 
        # Checker failed
191
124
        if os.WIFEXITED(condition):
192
 
            log.info('Checker for client %s (command "%s") failed'
193
 
                     " with exit code %d", self.properties["Name"],
194
 
                     command, os.WEXITSTATUS(condition))
195
 
        elif os.WIFSIGNALED(condition):
196
 
            log.info('Checker for client %s (command "%s") was'
197
 
                     " killed by signal %d", self.properties["Name"],
198
 
                     command, os.WTERMSIG(condition))
199
 
        self.update()
200
 
 
 
125
            self.logger(u'Checker for client %s (command "%s")'
 
126
                        u' failed with exit code %s'
 
127
                        % (self.properties[u"name"], command,
 
128
                           os.WEXITSTATUS(condition)))
 
129
            return
 
130
        if os.WIFSIGNALED(condition):
 
131
            self.logger(u'Checker for client %s (command "%s")'
 
132
                        u' was killed by signal %s'
 
133
                        % (self.properties[u"name"], command,
 
134
                           os.WTERMSIG(condition)))
 
135
            return
 
136
        if os.WCOREDUMP(condition):
 
137
            self.logger(u'Checker for client %s (command "%s")'
 
138
                        u' dumped core'
 
139
                        % (self.properties[u"name"], command))
 
140
        self.logger(u'Checker for client %s completed mysteriously')
 
141
    
201
142
    def checker_started(self, command):
202
 
        """Server signals that a checker started."""
203
 
        log.debug('Client %s started checker "%s"',
204
 
                  self.properties["Name"], command)
205
 
 
 
143
        #self.logger(u'Client %s started checker "%s"'
 
144
        #            % (self.properties[u"name"], unicode(command)))
 
145
        pass
 
146
    
206
147
    def got_secret(self):
207
 
        log.info("Client %s received its secret",
208
 
                 self.properties["Name"])
209
 
 
 
148
        self.logger(u'Client %s received its secret'
 
149
                    % self.properties[u"name"])
 
150
    
210
151
    def need_approval(self, timeout, default):
211
152
        if not default:
212
 
            message = "Client %s needs approval within %f seconds"
 
153
            message = u'Client %s needs approval within %s seconds'
213
154
        else:
214
 
            message = "Client %s will get its secret in %f seconds"
215
 
        log.info(message, self.properties["Name"], timeout/1000)
216
 
 
 
155
            message = u'Client %s will get its secret in %s seconds'
 
156
        self.logger(message
 
157
                    % (self.properties[u"name"], timeout/1000))
 
158
    
217
159
    def rejected(self, reason):
218
 
        log.info("Client %s was rejected; reason: %s",
219
 
                 self.properties["Name"], reason)
220
 
 
 
160
        self.logger(u'Client %s was rejected; reason: %s'
 
161
                    % (self.properties[u"name"], reason))
 
162
    
221
163
    def selectable(self):
222
164
        """Make this a "selectable" widget.
223
165
        This overrides the method from urwid.FlowWidget."""
224
166
        return True
225
 
 
226
 
    def rows(self, maxcolrow, focus=False):
 
167
    
 
168
    def rows(self, (maxcol,), focus=False):
227
169
        """How many rows this widget will occupy might depend on
228
170
        whether we have focus or not.
229
171
        This overrides the method from urwid.FlowWidget"""
230
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
231
 
 
 
172
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
173
    
232
174
    def current_widget(self, focus=False):
233
175
        if focus or self.opened:
234
176
            return self._focus_widget
235
177
        return self._widget
236
 
 
 
178
    
237
179
    def update(self):
238
180
        "Called when what is visible on the screen should be updated."
239
181
        # How to add standout mode to a style
240
 
        with_standout = {"normal": "standout",
241
 
                         "bold": "bold-standout",
242
 
                         "underline-blink":
243
 
                         "underline-blink-standout",
244
 
                         "bold-underline-blink":
245
 
                         "bold-underline-blink-standout",
246
 
                         }
 
182
        with_standout = { u"normal": u"standout",
 
183
                          u"bold": u"bold-standout",
 
184
                          u"underline-blink":
 
185
                              u"underline-blink-standout",
 
186
                          u"bold-underline-blink":
 
187
                              u"bold-underline-blink-standout",
 
188
                          }
247
189
 
248
190
        # Rebuild focus and non-focus widgets using current properties
249
191
 
250
192
        # Base part of a client. Name!
251
 
        base = "{name}: ".format(name=self.properties["Name"])
252
 
        if not self.properties["Enabled"]:
253
 
            message = "DISABLED"
254
 
            self.using_timer(False)
255
 
        elif self.properties["ApprovalPending"]:
256
 
            timeout = datetime.timedelta(
257
 
                milliseconds=self.properties["ApprovalDelay"])
258
 
            last_approval_request = isoformat_to_datetime(
259
 
                self.properties["LastApprovalRequest"])
260
 
            if last_approval_request is not None:
261
 
                timer = max(timeout - (datetime.datetime.utcnow()
262
 
                                       - last_approval_request),
263
 
                            datetime.timedelta())
264
 
            else:
265
 
                timer = datetime.timedelta()
266
 
            if self.properties["ApprovedByDefault"]:
267
 
                message = "Approval in {}. (d)eny?"
268
 
            else:
269
 
                message = "Denial in {}. (a)pprove?"
270
 
            message = message.format(str(timer).rsplit(".", 1)[0])
271
 
            self.using_timer(True)
272
 
        elif self.properties["LastCheckerStatus"] != 0:
273
 
            # When checker has failed, show timer until client expires
274
 
            expires = self.properties["Expires"]
275
 
            if expires == "":
276
 
                timer = datetime.timedelta(0)
277
 
            else:
278
 
                expires = (datetime.datetime.strptime
279
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
280
 
                timer = max(expires - datetime.datetime.utcnow(),
281
 
                            datetime.timedelta())
282
 
            message = ("A checker has failed! Time until client"
283
 
                       " gets disabled: {}"
284
 
                       .format(str(timer).rsplit(".", 1)[0]))
285
 
            self.using_timer(True)
 
193
        self._text = (u'%(name)s: '
 
194
                      % {u"name": self.properties[u"name"]})
 
195
 
 
196
        if self.properties[u"approved_pending"]:
 
197
            if self.properties[u"approved_by_default"]:
 
198
                self._text += u"Connection established to client. (d)eny?"
 
199
            else:
 
200
                self._text += u"Seeks approval to send secret. (a)pprove?"
286
201
        else:
287
 
            message = "enabled"
288
 
            self.using_timer(False)
289
 
        self._text = "{}{}".format(base, message)
290
 
 
 
202
            self._text += (u'%(enabled)s'
 
203
                           % {u"enabled":
 
204
                               (u"enabled"
 
205
                                if self.properties[u"enabled"]
 
206
                                else u"DISABLED")})
291
207
        if not urwid.supports_unicode():
292
208
            self._text = self._text.encode("ascii", "replace")
293
 
        textlist = [("normal", self._text)]
 
209
        textlist = [(u"normal", self._text)]
294
210
        self._text_widget.set_text(textlist)
295
211
        self._focus_text_widget.set_text([(with_standout[text[0]],
296
212
                                           text[1])
303
219
        # Run update hook, if any
304
220
        if self.update_hook is not None:
305
221
            self.update_hook()
306
 
 
307
 
    def update_timer(self):
308
 
        """called by GLib. Will indefinitely loop until
309
 
        GLib.source_remove() on tag is called
310
 
        """
311
 
        self.update()
312
 
        return True             # Keep calling this
313
 
 
314
 
    def delete(self, **kwargs):
315
 
        if self._update_timer_callback_tag is not None:
316
 
            GLib.source_remove(self._update_timer_callback_tag)
317
 
            self._update_timer_callback_tag = None
318
 
        for match in self.match_objects:
319
 
            match.remove()
320
 
        self.match_objects = ()
 
222
    
 
223
    def delete(self):
321
224
        if self.delete_hook is not None:
322
225
            self.delete_hook(self)
323
 
        return super(MandosClientWidget, self).delete(**kwargs)
324
 
 
325
 
    def render(self, maxcolrow, focus=False):
 
226
    
 
227
    def render(self, (maxcol,), focus=False):
326
228
        """Render differently if we have focus.
327
229
        This overrides the method from urwid.FlowWidget"""
328
 
        return self.current_widget(focus).render(maxcolrow,
 
230
        return self.current_widget(focus).render((maxcol,),
329
231
                                                 focus=focus)
330
 
 
331
 
    def keypress(self, maxcolrow, key):
 
232
    
 
233
    def keypress(self, (maxcol,), key):
332
234
        """Handle keys.
333
235
        This overrides the method from urwid.FlowWidget"""
334
 
        if key == "+":
335
 
            self.proxy.Set(client_interface, "Enabled",
336
 
                           dbus.Boolean(True), ignore_reply=True,
337
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
338
 
        elif key == "-":
339
 
            self.proxy.Set(client_interface, "Enabled", False,
340
 
                           ignore_reply=True,
341
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
342
 
        elif key == "a":
 
236
        if key == u"+":
 
237
            self.proxy.Enable(dbus_interface = client_interface)
 
238
        elif key == u"-":
 
239
            self.proxy.Disable(dbus_interface = client_interface)
 
240
        elif key == u"a":
343
241
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
344
 
                               dbus_interface=client_interface,
345
 
                               ignore_reply=True)
346
 
        elif key == "d":
 
242
                               dbus_interface = client_interface)
 
243
        elif key == u"d":
347
244
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
348
 
                               dbus_interface=client_interface,
349
 
                               ignore_reply=True)
350
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
245
                                  dbus_interface = client_interface)
 
246
        elif key == u"r" or key == u"_" or key == u"ctrl k":
351
247
            self.server_proxy_object.RemoveClient(self.proxy
352
 
                                                  .object_path,
353
 
                                                  ignore_reply=True)
354
 
        elif key == "s":
355
 
            self.proxy.Set(client_interface, "CheckerRunning",
356
 
                           dbus.Boolean(True), ignore_reply=True,
357
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
358
 
        elif key == "S":
359
 
            self.proxy.Set(client_interface, "CheckerRunning",
360
 
                           dbus.Boolean(False), ignore_reply=True,
361
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
362
 
        elif key == "C":
363
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
364
 
                                 ignore_reply=True)
 
248
                                                  .object_path)
 
249
        elif key == u"s":
 
250
            self.proxy.StartChecker(dbus_interface = client_interface)
 
251
        elif key == u"S":
 
252
            self.proxy.StopChecker(dbus_interface = client_interface)
 
253
        elif key == u"C":
 
254
            self.proxy.CheckedOK(dbus_interface = client_interface)
365
255
        # xxx
366
 
#         elif key == "p" or key == "=":
 
256
#         elif key == u"p" or key == "=":
367
257
#             self.proxy.pause()
368
 
#         elif key == "u" or key == ":":
 
258
#         elif key == u"u" or key == ":":
369
259
#             self.proxy.unpause()
370
 
#         elif key == "RET":
 
260
#         elif key == u"RET":
371
261
#             self.open()
 
262
#        elif key == u"+":
 
263
#            self.proxy.Approve(True)
 
264
#        elif key == u"-":
 
265
#            self.proxy.Approve(False)
372
266
        else:
373
267
            return key
374
 
 
375
 
    def properties_changed(self, interface, properties, invalidated):
376
 
        """Call self.update() if any properties changed.
 
268
    
 
269
    def property_changed(self, property=None, value=None,
 
270
                         *args, **kwargs):
 
271
        """Call self.update() if old value is not new value.
377
272
        This overrides the method from MandosClientPropertyCache"""
378
 
        old_values = {key: self.properties.get(key)
379
 
                      for key in properties.keys()}
380
 
        super(MandosClientWidget, self).properties_changed(
381
 
            interface, properties, invalidated)
382
 
        if any(old_values[key] != self.properties.get(key)
383
 
               for key in old_values):
 
273
        property_name = unicode(property)
 
274
        old_value = self.properties.get(property_name)
 
275
        super(MandosClientWidget, self).property_changed(
 
276
            property=property, value=value, *args, **kwargs)
 
277
        if self.properties.get(property_name) != old_value:
384
278
            self.update()
385
279
 
386
280
 
387
 
def glib_safely(func, retval=True):
388
 
    def safe_func(*args, **kwargs):
389
 
        try:
390
 
            return func(*args, **kwargs)
391
 
        except Exception:
392
 
            log.exception("")
393
 
            return retval
394
 
    return safe_func
395
 
 
396
 
 
397
281
class ConstrainedListBox(urwid.ListBox):
398
282
    """Like a normal urwid.ListBox, but will consume all "up" or
399
283
    "down" key presses, thus not allowing any containing widgets to
400
284
    use them as an excuse to shift focus away from this widget.
401
285
    """
402
 
    def keypress(self, *args, **kwargs):
403
 
        ret = (super(ConstrainedListBox, self)
404
 
               .keypress(*args, **kwargs))
405
 
        if ret in ("up", "down"):
 
286
    def keypress(self, (maxcol, maxrow), key):
 
287
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
288
        if ret in (u"up", u"down"):
406
289
            return
407
290
        return ret
408
291
 
409
292
 
410
 
class UserInterface:
 
293
class UserInterface(object):
411
294
    """This is the entire user interface - the whole screen
412
295
    with boxes, lists of client widgets, etc.
413
296
    """
414
297
    def __init__(self, max_log_length=1000):
415
298
        DBusGMainLoop(set_as_default=True)
416
 
 
 
299
        
417
300
        self.screen = urwid.curses_display.Screen()
418
 
 
 
301
        
419
302
        self.screen.register_palette((
420
 
                ("normal",
421
 
                 "default", "default", None),
422
 
                ("bold",
423
 
                 "bold", "default", "bold"),
424
 
                ("underline-blink",
425
 
                 "underline,blink", "default", "underline,blink"),
426
 
                ("standout",
427
 
                 "standout", "default", "standout"),
428
 
                ("bold-underline-blink",
429
 
                 "bold,underline,blink", "default",
430
 
                 "bold,underline,blink"),
431
 
                ("bold-standout",
432
 
                 "bold,standout", "default", "bold,standout"),
433
 
                ("underline-blink-standout",
434
 
                 "underline,blink,standout", "default",
435
 
                 "underline,blink,standout"),
436
 
                ("bold-underline-blink-standout",
437
 
                 "bold,underline,blink,standout", "default",
438
 
                 "bold,underline,blink,standout"),
 
303
                (u"normal",
 
304
                 u"default", u"default", None),
 
305
                (u"bold",
 
306
                 u"default", u"default", u"bold"),
 
307
                (u"underline-blink",
 
308
                 u"default", u"default", u"underline"),
 
309
                (u"standout",
 
310
                 u"default", u"default", u"standout"),
 
311
                (u"bold-underline-blink",
 
312
                 u"default", u"default", (u"bold", u"underline")),
 
313
                (u"bold-standout",
 
314
                 u"default", u"default", (u"bold", u"standout")),
 
315
                (u"underline-blink-standout",
 
316
                 u"default", u"default", (u"underline", u"standout")),
 
317
                (u"bold-underline-blink-standout",
 
318
                 u"default", u"default", (u"bold", u"underline",
 
319
                                          u"standout")),
439
320
                ))
440
 
 
 
321
        
441
322
        if urwid.supports_unicode():
442
 
            self.divider = "─"  # \u2500
 
323
            self.divider = u"─" # \u2500
 
324
            #self.divider = u"━" # \u2501
443
325
        else:
444
 
            self.divider = "_"  # \u005f
445
 
 
 
326
            #self.divider = u"-" # \u002d
 
327
            self.divider = u"_" # \u005f
 
328
        
446
329
        self.screen.start()
447
 
 
 
330
        
448
331
        self.size = self.screen.get_cols_rows()
449
 
 
 
332
        
450
333
        self.clients = urwid.SimpleListWalker([])
451
334
        self.clients_dict = {}
452
 
 
 
335
        
453
336
        # We will add Text widgets to this list
454
 
        self.log = urwid.SimpleListWalker([])
 
337
        self.log = []
455
338
        self.max_log_length = max_log_length
456
 
 
 
339
        
457
340
        # We keep a reference to the log widget so we can remove it
458
341
        # from the ListWalker without it getting destroyed
459
342
        self.logbox = ConstrainedListBox(self.log)
460
 
 
 
343
        
461
344
        # This keeps track of whether self.uilist currently has
462
345
        # self.logbox in it or not
463
346
        self.log_visible = True
464
 
        self.log_wrap = "any"
465
 
 
466
 
        self.loghandler = UILogHandler(self)
467
 
 
 
347
        self.log_wrap = u"any"
 
348
        
468
349
        self.rebuild()
469
 
        self.add_log_line(("bold",
470
 
                           "Mandos Monitor version " + version))
471
 
        self.add_log_line(("bold", "q: Quit  ?: Help"))
472
 
 
473
 
        self.busname = domain + ".Mandos"
474
 
        self.main_loop = GLib.MainLoop()
475
 
 
476
 
    def client_not_found(self, key_id, address):
477
 
        log.info("Client with address %s and key ID %s could"
478
 
                 " not be found", address, key_id)
479
 
 
 
350
        self.log_message_raw((u"bold",
 
351
                              u"Mandos Monitor version " + version))
 
352
        self.log_message_raw((u"bold",
 
353
                              u"q: Quit  ?: Help"))
 
354
        
 
355
        self.busname = domain + '.Mandos'
 
356
        self.main_loop = gobject.MainLoop()
 
357
        self.bus = dbus.SystemBus()
 
358
        mandos_dbus_objc = self.bus.get_object(
 
359
            self.busname, u"/", follow_name_owner_changes=True)
 
360
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
361
                                          dbus_interface
 
362
                                          = server_interface)
 
363
        try:
 
364
            mandos_clients = (self.mandos_serv
 
365
                              .GetAllClientsWithProperties())
 
366
        except dbus.exceptions.DBusException:
 
367
            mandos_clients = dbus.Dictionary()
 
368
        
 
369
        (self.mandos_serv
 
370
         .connect_to_signal(u"ClientRemoved",
 
371
                            self.find_and_remove_client,
 
372
                            dbus_interface=server_interface,
 
373
                            byte_arrays=True))
 
374
        (self.mandos_serv
 
375
         .connect_to_signal(u"ClientAdded",
 
376
                            self.add_new_client,
 
377
                            dbus_interface=server_interface,
 
378
                            byte_arrays=True))
 
379
        (self.mandos_serv
 
380
         .connect_to_signal(u"ClientNotFound",
 
381
                            self.client_not_found,
 
382
                            dbus_interface=server_interface,
 
383
                            byte_arrays=True))
 
384
        for path, client in mandos_clients.iteritems():
 
385
            client_proxy_object = self.bus.get_object(self.busname,
 
386
                                                      path)
 
387
            self.add_client(MandosClientWidget(server_proxy_object
 
388
                                               =self.mandos_serv,
 
389
                                               proxy_object
 
390
                                               =client_proxy_object,
 
391
                                               properties=client,
 
392
                                               update_hook
 
393
                                               =self.refresh,
 
394
                                               delete_hook
 
395
                                               =self.remove_client,
 
396
                                               logger
 
397
                                               =self.log_message),
 
398
                            path=path)
 
399
    
 
400
    def client_not_found(self, fingerprint, address):
 
401
        self.log_message((u"Client with address %s and fingerprint %s"
 
402
                          u" could not be found" % (address,
 
403
                                                    fingerprint)))
 
404
    
480
405
    def rebuild(self):
481
406
        """This rebuilds the User Interface.
482
407
        Call this when the widget layout needs to change"""
483
408
        self.uilist = []
484
 
        # self.uilist.append(urwid.ListBox(self.clients))
485
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
486
 
                                                          clients),
487
 
                                       # header=urwid.Divider(),
 
409
        #self.uilist.append(urwid.ListBox(self.clients))
 
410
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
411
                                       #header=urwid.Divider(),
488
412
                                       header=None,
489
 
                                       footer=urwid.Divider(
490
 
                                           div_char=self.divider)))
 
413
                                       footer=urwid.Divider(div_char=self.divider)))
491
414
        if self.log_visible:
492
415
            self.uilist.append(self.logbox)
 
416
            pass
493
417
        self.topwidget = urwid.Pile(self.uilist)
494
 
 
495
 
    def add_log_line(self, markup):
 
418
    
 
419
    def log_message(self, message):
 
420
        timestamp = datetime.datetime.now().isoformat()
 
421
        self.log_message_raw(timestamp + u": " + message)
 
422
    
 
423
    def log_message_raw(self, markup):
 
424
        """Add a log message to the log buffer."""
496
425
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
497
 
        if self.max_log_length:
498
 
            if len(self.log) > self.max_log_length:
499
 
                del self.log[0:(len(self.log) - self.max_log_length)]
500
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
501
 
                              coming_from="above")
 
426
        if (self.max_log_length
 
427
            and len(self.log) > self.max_log_length):
 
428
            del self.log[0:len(self.log)-self.max_log_length-1]
 
429
        self.logbox.set_focus(len(self.logbox.body.contents),
 
430
                              coming_from=u"above")
502
431
        self.refresh()
503
 
 
 
432
    
504
433
    def toggle_log_display(self):
505
434
        """Toggle visibility of the log buffer."""
506
435
        self.log_visible = not self.log_visible
507
436
        self.rebuild()
508
 
        log.debug("Log visibility changed to: %s", self.log_visible)
509
 
 
 
437
        self.log_message(u"Log visibility changed to: "
 
438
                         + unicode(self.log_visible))
 
439
    
510
440
    def change_log_display(self):
511
441
        """Change type of log display.
512
442
        Currently, this toggles wrapping of text lines."""
513
 
        if self.log_wrap == "clip":
514
 
            self.log_wrap = "any"
 
443
        if self.log_wrap == u"clip":
 
444
            self.log_wrap = u"any"
515
445
        else:
516
 
            self.log_wrap = "clip"
 
446
            self.log_wrap = u"clip"
517
447
        for textwidget in self.log:
518
448
            textwidget.set_wrap_mode(self.log_wrap)
519
 
        log.debug("Wrap mode: %s", self.log_wrap)
520
 
 
521
 
    def find_and_remove_client(self, path, interfaces):
522
 
        """Find a client by its object path and remove it.
523
 
 
524
 
        This is connected to the InterfacesRemoved signal from the
 
449
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
450
    
 
451
    def find_and_remove_client(self, path, name):
 
452
        """Find an client from its object path and remove it.
 
453
        
 
454
        This is connected to the ClientRemoved signal from the
525
455
        Mandos server object."""
526
 
        if client_interface not in interfaces:
527
 
            # Not a Mandos client object; ignore
528
 
            return
529
456
        try:
530
457
            client = self.clients_dict[path]
531
458
        except KeyError:
532
459
            # not found?
533
 
            log.warning("Unknown client %s removed", path)
534
 
            return
535
 
        client.delete()
536
 
 
537
 
    def add_new_client(self, path, ifs_and_props):
538
 
        """Find a client by its object path and remove it.
539
 
 
540
 
        This is connected to the InterfacesAdded signal from the
541
 
        Mandos server object.
542
 
        """
543
 
        if client_interface not in ifs_and_props:
544
 
            # Not a Mandos client object; ignore
545
 
            return
 
460
            return
 
461
        self.remove_client(client, path)
 
462
    
 
463
    def add_new_client(self, path):
546
464
        client_proxy_object = self.bus.get_object(self.busname, path)
547
 
        self.add_client(MandosClientWidget(
548
 
            server_proxy_object=self.mandos_serv,
549
 
            proxy_object=client_proxy_object,
550
 
            update_hook=self.refresh,
551
 
            delete_hook=self.remove_client,
552
 
            properties=dict(ifs_and_props[client_interface])),
 
465
        self.add_client(MandosClientWidget(server_proxy_object
 
466
                                           =self.mandos_serv,
 
467
                                           proxy_object
 
468
                                           =client_proxy_object,
 
469
                                           update_hook
 
470
                                           =self.refresh,
 
471
                                           delete_hook
 
472
                                           =self.remove_client,
 
473
                                           logger
 
474
                                           =self.log_message),
553
475
                        path=path)
554
 
 
 
476
    
555
477
    def add_client(self, client, path=None):
556
478
        self.clients.append(client)
557
479
        if path is None:
558
480
            path = client.proxy.object_path
559
481
        self.clients_dict[path] = client
560
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
482
        self.clients.sort(None, lambda c: c.properties[u"name"])
561
483
        self.refresh()
562
 
 
 
484
    
563
485
    def remove_client(self, client, path=None):
564
486
        self.clients.remove(client)
565
487
        if path is None:
566
488
            path = client.proxy.object_path
567
489
        del self.clients_dict[path]
 
490
        if not self.clients_dict:
 
491
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
492
            # is completely emptied, we need to recreate it.
 
493
            self.clients = urwid.SimpleListWalker([])
 
494
            self.rebuild()
568
495
        self.refresh()
569
 
 
 
496
    
570
497
    def refresh(self):
571
498
        """Redraw the screen"""
572
499
        canvas = self.topwidget.render(self.size, focus=True)
573
500
        self.screen.draw_screen(self.size, canvas)
574
 
 
 
501
    
575
502
    def run(self):
576
503
        """Start the main loop and exit when it's done."""
577
 
        log.addHandler(self.loghandler)
578
 
        self.orig_log_propagate = log.propagate
579
 
        log.propagate = False
580
 
        self.orig_log_level = log.level
581
 
        log.setLevel("INFO")
582
 
        self.bus = dbus.SystemBus()
583
 
        mandos_dbus_objc = self.bus.get_object(
584
 
            self.busname, "/", follow_name_owner_changes=True)
585
 
        self.mandos_serv = dbus.Interface(
586
 
            mandos_dbus_objc, dbus_interface=server_interface)
587
 
        try:
588
 
            mandos_clients = (self.mandos_serv
589
 
                              .GetAllClientsWithProperties())
590
 
            if not mandos_clients:
591
 
                log.warning("Note: Server has no clients.")
592
 
        except dbus.exceptions.DBusException:
593
 
            log.warning("Note: No Mandos server running.")
594
 
            mandos_clients = dbus.Dictionary()
595
 
 
596
 
        (self.mandos_serv
597
 
         .connect_to_signal("InterfacesRemoved",
598
 
                            self.find_and_remove_client,
599
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
600
 
                            byte_arrays=True))
601
 
        (self.mandos_serv
602
 
         .connect_to_signal("InterfacesAdded",
603
 
                            self.add_new_client,
604
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
605
 
                            byte_arrays=True))
606
 
        (self.mandos_serv
607
 
         .connect_to_signal("ClientNotFound",
608
 
                            self.client_not_found,
609
 
                            dbus_interface=server_interface,
610
 
                            byte_arrays=True))
611
 
        for path, client in mandos_clients.items():
612
 
            client_proxy_object = self.bus.get_object(self.busname,
613
 
                                                      path)
614
 
            self.add_client(MandosClientWidget(
615
 
                server_proxy_object=self.mandos_serv,
616
 
                proxy_object=client_proxy_object,
617
 
                properties=client,
618
 
                update_hook=self.refresh,
619
 
                delete_hook=self.remove_client),
620
 
                            path=path)
621
 
 
622
504
        self.refresh()
623
 
        self._input_callback_tag = (
624
 
            GLib.io_add_watch(
625
 
                GLib.IOChannel.unix_new(sys.stdin.fileno()),
626
 
                GLib.PRIORITY_DEFAULT, GLib.IO_IN,
627
 
                glib_safely(self.process_input)))
 
505
        self._input_callback_tag = (gobject.io_add_watch
 
506
                                    (sys.stdin.fileno(),
 
507
                                     gobject.IO_IN,
 
508
                                     self.process_input))
628
509
        self.main_loop.run()
629
510
        # Main loop has finished, we should close everything now
630
 
        GLib.source_remove(self._input_callback_tag)
631
 
        with warnings.catch_warnings():
632
 
            warnings.simplefilter("ignore", BytesWarning)
633
 
            self.screen.stop()
634
 
 
 
511
        gobject.source_remove(self._input_callback_tag)
 
512
        self.screen.stop()
 
513
    
635
514
    def stop(self):
636
515
        self.main_loop.quit()
637
 
        log.removeHandler(self.loghandler)
638
 
        log.propagate = self.orig_log_propagate
639
 
 
 
516
    
640
517
    def process_input(self, source, condition):
641
518
        keys = self.screen.get_input()
642
 
        translations = {"ctrl n": "down",       # Emacs
643
 
                        "ctrl p": "up",         # Emacs
644
 
                        "ctrl v": "page down",  # Emacs
645
 
                        "meta v": "page up",    # Emacs
646
 
                        " ": "page down",       # less
647
 
                        "f": "page down",       # less
648
 
                        "b": "page up",         # less
649
 
                        "j": "down",            # vi
650
 
                        "k": "up",              # vi
651
 
                        }
 
519
        translations = { u"ctrl n": u"down",      # Emacs
 
520
                         u"ctrl p": u"up",        # Emacs
 
521
                         u"ctrl v": u"page down", # Emacs
 
522
                         u"meta v": u"page up",   # Emacs
 
523
                         u" ": u"page down",      # less
 
524
                         u"f": u"page down",      # less
 
525
                         u"b": u"page up",        # less
 
526
                         u"j": u"down",           # vi
 
527
                         u"k": u"up",             # vi
 
528
                         }
652
529
        for key in keys:
653
530
            try:
654
531
                key = translations[key]
655
532
            except KeyError:    # :-)
656
533
                pass
657
 
 
658
 
            if key == "q" or key == "Q":
 
534
            
 
535
            if key == u"q" or key == u"Q":
659
536
                self.stop()
660
537
                break
661
 
            elif key == "window resize":
 
538
            elif key == u"window resize":
662
539
                self.size = self.screen.get_cols_rows()
663
540
                self.refresh()
664
 
            elif key == "ctrl l":
665
 
                self.screen.clear()
 
541
            elif key == u"\f":  # Ctrl-L
666
542
                self.refresh()
667
 
            elif key == "l" or key == "D":
 
543
            elif key == u"l" or key == u"D":
668
544
                self.toggle_log_display()
669
545
                self.refresh()
670
 
            elif key == "w" or key == "i":
 
546
            elif key == u"w" or key == u"i":
671
547
                self.change_log_display()
672
548
                self.refresh()
673
 
            elif key == "?" or key == "f1" or key == "esc":
 
549
            elif key == u"?" or key == u"f1" or key == u"esc":
674
550
                if not self.log_visible:
675
551
                    self.log_visible = True
676
552
                    self.rebuild()
677
 
                self.add_log_line(("bold",
678
 
                                   "  ".join(("q: Quit",
679
 
                                              "?: Help",
680
 
                                              "l: Log window toggle",
681
 
                                              "TAB: Switch window",
682
 
                                              "w: Wrap (log lines)",
683
 
                                              "v: Toggle verbose log",
684
 
                                   ))))
685
 
                self.add_log_line(("bold",
686
 
                                   "  ".join(("Clients:",
687
 
                                              "+: Enable",
688
 
                                              "-: Disable",
689
 
                                              "R: Remove",
690
 
                                              "s: Start new checker",
691
 
                                              "S: Stop checker",
692
 
                                              "C: Checker OK",
693
 
                                              "a: Approve",
694
 
                                              "d: Deny",
695
 
                                   ))))
 
553
                self.log_message_raw((u"bold",
 
554
                                      u"  ".
 
555
                                      join((u"q: Quit",
 
556
                                            u"?: Help",
 
557
                                            u"l: Log window toggle",
 
558
                                            u"TAB: Switch window",
 
559
                                            u"w: Wrap (log)"))))
 
560
                self.log_message_raw((u"bold",
 
561
                                      u"  "
 
562
                                      .join((u"Clients:",
 
563
                                             u"+: Enable",
 
564
                                             u"-: Disable",
 
565
                                             u"r: Remove",
 
566
                                             u"s: Start new checker",
 
567
                                             u"S: Stop checker",
 
568
                                             u"C: Checker OK",
 
569
                                             u"a: Approve",
 
570
                                             u"d: Deny"))))
696
571
                self.refresh()
697
 
            elif key == "tab":
 
572
            elif key == u"tab":
698
573
                if self.topwidget.get_focus() is self.logbox:
699
574
                    self.topwidget.set_focus(0)
700
575
                else:
701
576
                    self.topwidget.set_focus(self.logbox)
702
577
                self.refresh()
703
 
            elif key == "v":
704
 
                if log.level < logging.INFO:
705
 
                    log.setLevel(logging.INFO)
706
 
                    log.info("Verbose mode: Off")
707
 
                else:
708
 
                    log.setLevel(logging.NOTSET)
709
 
                    log.info("Verbose mode: On")
710
 
            # elif (key == "end" or key == "meta >" or key == "G"
711
 
            #       or key == ">"):
712
 
            #     pass            # xxx end-of-buffer
713
 
            # elif (key == "home" or key == "meta <" or key == "g"
714
 
            #       or key == "<"):
715
 
            #     pass            # xxx beginning-of-buffer
716
 
            # elif key == "ctrl e" or key == "$":
717
 
            #     pass            # xxx move-end-of-line
718
 
            # elif key == "ctrl a" or key == "^":
719
 
            #     pass            # xxx move-beginning-of-line
720
 
            # elif key == "ctrl b" or key == "meta (" or key == "h":
721
 
            #     pass            # xxx left
722
 
            # elif key == "ctrl f" or key == "meta )" or key == "l":
723
 
            #     pass            # xxx right
724
 
            # elif key == "a":
725
 
            #     pass            # scroll up log
726
 
            # elif key == "z":
727
 
            #     pass            # scroll down log
 
578
            #elif (key == u"end" or key == u"meta >" or key == u"G"
 
579
            #      or key == u">"):
 
580
            #    pass            # xxx end-of-buffer
 
581
            #elif (key == u"home" or key == u"meta <" or key == u"g"
 
582
            #      or key == u"<"):
 
583
            #    pass            # xxx beginning-of-buffer
 
584
            #elif key == u"ctrl e" or key == u"$":
 
585
            #    pass            # xxx move-end-of-line
 
586
            #elif key == u"ctrl a" or key == u"^":
 
587
            #    pass            # xxx move-beginning-of-line
 
588
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
589
            #    pass            # xxx left
 
590
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
591
            #    pass            # xxx right
 
592
            #elif key == u"a":
 
593
            #    pass            # scroll up log
 
594
            #elif key == u"z":
 
595
            #    pass            # scroll down log
728
596
            elif self.topwidget.selectable():
729
597
                self.topwidget.keypress(self.size, key)
730
598
                self.refresh()
731
599
        return True
732
600
 
733
 
 
734
 
class UILogHandler(logging.Handler):
735
 
    def __init__(self, ui, *args, **kwargs):
736
 
        self.ui = ui
737
 
        super(UILogHandler, self).__init__(*args, **kwargs)
738
 
        self.setFormatter(
739
 
            logging.Formatter("%(asctime)s: %(message)s"))
740
 
    def emit(self, record):
741
 
        msg = self.format(record)
742
 
        if record.levelno > logging.INFO:
743
 
            msg = ("bold", msg)
744
 
        self.ui.add_log_line(msg)
745
 
 
746
 
 
747
601
ui = UserInterface()
748
602
try:
749
603
    ui.run()
750
 
except KeyboardInterrupt:
751
 
    with warnings.catch_warnings():
752
 
        warnings.filterwarnings("ignore", "", BytesWarning)
753
 
        ui.screen.stop()
754
 
except Exception:
755
 
    with warnings.catch_warnings():
756
 
        warnings.filterwarnings("ignore", "", BytesWarning)
757
 
        ui.screen.stop()
 
604
except Exception, e:
 
605
    ui.log_message(unicode(e))
 
606
    ui.screen.stop()
758
607
    raise