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  • Committer: Teddy Hogeborn
  • Date: 2012-05-07 19:13:15 UTC
  • Revision ID: teddy@recompile.se-20120507191315-tbe55n4u1uq3l7ft
* mandos: Use all new builtins.
* mandos-ctl: - '' -
* mandos-monitor: - '' -

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1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
 
3
4
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
 
5
 
6
# Copyright © 2009-2012 Teddy Hogeborn
 
7
# Copyright © 2009-2012 Björn Påhlsson
 
8
 
9
# This program is free software: you can redistribute it and/or modify
 
10
# it under the terms of the GNU General Public License as published by
13
11
# the Free Software Foundation, either version 3 of the License, or
14
12
# (at your option) any later version.
15
13
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
 
14
#     This program is distributed in the hope that it will be useful,
 
15
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
18
16
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
17
#     GNU General Public License for more details.
20
 
#
 
18
21
19
# 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
 
#
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
 
22
24
23
# Contact the authors at <mandos@recompile.se>.
25
 
#
 
24
26
25
 
27
26
from __future__ import (division, absolute_import, print_function,
28
27
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
28
 
 
29
from future_builtins import *
33
30
 
34
31
import sys
35
32
import os
36
 
import warnings
 
33
import signal
 
34
 
37
35
import datetime
38
 
import locale
39
 
import logging
40
36
 
41
37
import urwid.curses_display
42
38
import urwid
43
39
 
44
40
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
41
import gobject
46
42
 
47
43
import dbus
48
44
 
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)
 
45
import UserList
 
46
 
 
47
import locale
 
48
 
 
49
locale.setlocale(locale.LC_ALL, '')
 
50
 
 
51
import logging
 
52
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
61
53
 
62
54
# 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
 
 
 
55
domain = 'se.recompile'
 
56
server_interface = domain + '.Mandos'
 
57
client_interface = domain + '.Mandos.Client'
 
58
version = "1.5.3"
 
59
 
 
60
# Always run in monochrome mode
 
61
urwid.curses_display.curses.has_colors = lambda : False
 
62
 
 
63
# Urwid doesn't support blinking, but we want it.  Since we have no
 
64
# use for underline on its own, we make underline also always blink.
 
65
urwid.curses_display.curses.A_UNDERLINE |= (
 
66
    urwid.curses_display.curses.A_BLINK)
73
67
 
74
68
def isoformat_to_datetime(iso):
75
69
    "Parse an ISO 8601 date string to a datetime.datetime()"
84
78
                             int(day),
85
79
                             int(hour),
86
80
                             int(minute),
87
 
                             int(second),            # Whole seconds
88
 
                             int(fraction*1000000))  # Microseconds
89
 
 
 
81
                             int(second),           # Whole seconds
 
82
                             int(fraction*1000000)) # Microseconds
90
83
 
91
84
class MandosClientPropertyCache(object):
92
85
    """This wraps a Mandos Client D-Bus proxy object, caches the
93
86
    properties and calls a hook function when any of them are
94
87
    changed.
95
88
    """
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
 
89
    def __init__(self, proxy_object=None, *args, **kwargs):
 
90
        self.proxy = proxy_object # Mandos Client proxy object
 
91
        
 
92
        self.properties = dict()
99
93
        self.property_changed_match = (
100
 
            self.proxy.connect_to_signal("PropertiesChanged",
101
 
                                         self.properties_changed,
102
 
                                         dbus.PROPERTIES_IFACE,
 
94
            self.proxy.connect_to_signal("PropertyChanged",
 
95
                                         self.property_changed,
 
96
                                         client_interface,
103
97
                                         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.
 
98
        
 
99
        self.properties.update(
 
100
            self.proxy.GetAll(client_interface,
 
101
                              dbus_interface = dbus.PROPERTIES_IFACE))
 
102
 
 
103
        #XXX This breaks good super behaviour
 
104
#        super(MandosClientPropertyCache, self).__init__(
 
105
#            *args, **kwargs)
 
106
    
 
107
    def property_changed(self, property=None, value=None):
 
108
        """This is called whenever we get a PropertyChanged signal
 
109
        It updates the changed property in the "properties" dict.
115
110
        """
116
111
        # Update properties dict with new value
117
 
        if interface == client_interface:
118
 
            self.properties.update(properties)
119
 
 
120
 
    def delete(self):
 
112
        self.properties[property] = value
 
113
    
 
114
    def delete(self, *args, **kwargs):
121
115
        self.property_changed_match.remove()
 
116
        super(MandosClientPropertyCache, self).__init__(
 
117
            *args, **kwargs)
122
118
 
123
119
 
124
120
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
125
121
    """A Mandos Client which is visible on the screen.
126
122
    """
127
 
 
 
123
    
128
124
    def __init__(self, server_proxy_object=None, update_hook=None,
129
 
                 delete_hook=None, **kwargs):
 
125
                 delete_hook=None, logger=None, *args, **kwargs):
130
126
        # Called on update
131
127
        self.update_hook = update_hook
132
128
        # Called on delete
133
129
        self.delete_hook = delete_hook
134
130
        # Mandos Server proxy object
135
131
        self.server_proxy_object = server_proxy_object
136
 
 
 
132
        # Logger
 
133
        self.logger = logger
 
134
        
137
135
        self._update_timer_callback_tag = None
138
 
 
 
136
        self._update_timer_callback_lock = 0
 
137
        
139
138
        # The widget shown normally
140
139
        self._text_widget = urwid.Text("")
141
140
        # The widget shown when we have focus
142
141
        self._focus_text_widget = urwid.Text("")
143
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
142
        super(MandosClientWidget, self).__init__(
 
143
            update_hook=update_hook, delete_hook=delete_hook,
 
144
            *args, **kwargs)
144
145
        self.update()
145
146
        self.opened = False
146
 
 
 
147
        
 
148
        last_checked_ok = isoformat_to_datetime(self.properties
 
149
                                                ["LastCheckedOK"])
 
150
        
 
151
        if self.properties ["LastCheckerStatus"] != 0:
 
152
            self.using_timer(True)
 
153
        
 
154
        if self.need_approval:
 
155
            self.using_timer(True)
 
156
        
147
157
        self.match_objects = (
148
158
            self.proxy.connect_to_signal("CheckerCompleted",
149
159
                                         self.checker_completed,
165
175
                                         self.rejected,
166
176
                                         client_interface,
167
177
                                         byte_arrays=True))
168
 
        log.debug("Created client %s", self.properties["Name"])
169
 
 
 
178
        #self.logger('Created client {0}'
 
179
        #            .format(self.properties["Name"]))
 
180
    
 
181
    def property_changed(self, property=None, value=None):
 
182
        super(self, MandosClientWidget).property_changed(property,
 
183
                                                         value)
 
184
        if property == "ApprovalPending":
 
185
            using_timer(bool(value))
 
186
        if property == "LastCheckerStatus":
 
187
            using_timer(value != 0)
 
188
            #self.logger('Checker for client {0} (command "{1}") was '
 
189
            #            ' successful'.format(self.properties["Name"],
 
190
            #                                 command))
 
191
    
170
192
    def using_timer(self, flag):
171
193
        """Call this method with True or False when timer should be
172
194
        activated or deactivated.
173
195
        """
174
 
        if flag and self._update_timer_callback_tag is None:
 
196
        old = self._update_timer_callback_lock
 
197
        if flag:
 
198
            self._update_timer_callback_lock += 1
 
199
        else:
 
200
            self._update_timer_callback_lock -= 1
 
201
        if old == 0 and self._update_timer_callback_lock:
175
202
            # 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)
 
203
            self._update_timer_callback_tag = (gobject.timeout_add
 
204
                                               (1000,
 
205
                                                self.update_timer))
 
206
        elif old and self._update_timer_callback_lock == 0:
 
207
            gobject.source_remove(self._update_timer_callback_tag)
181
208
            self._update_timer_callback_tag = None
182
 
 
 
209
    
183
210
    def checker_completed(self, exitstatus, condition, command):
184
211
        if exitstatus == 0:
185
 
            log.debug('Checker for client %s (command "%s")'
186
 
                      " succeeded", self.properties["Name"], command)
187
212
            self.update()
188
213
            return
189
214
        # Checker failed
190
215
        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))
 
216
            self.logger('Checker for client {0} (command "{1}")'
 
217
                        ' failed with exit code {2}'
 
218
                        .format(self.properties["Name"], command,
 
219
                                os.WEXITSTATUS(condition)))
194
220
        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))
 
221
            self.logger('Checker for client {0} (command "{1}") was'
 
222
                        ' killed by signal {2}'
 
223
                        .format(self.properties["Name"], command,
 
224
                                os.WTERMSIG(condition)))
 
225
        elif os.WCOREDUMP(condition):
 
226
            self.logger('Checker for client {0} (command "{1}")'
 
227
                        ' dumped core'
 
228
                        .format(self.properties["Name"], command))
 
229
        else:
 
230
            self.logger('Checker for client {0} completed'
 
231
                        ' mysteriously'
 
232
                        .format(self.properties["Name"]))
198
233
        self.update()
199
 
 
 
234
    
200
235
    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
 
 
 
236
        """Server signals that a checker started. This could be useful
 
237
           to log in the future. """
 
238
        #self.logger('Client {0} started checker "{1}"'
 
239
        #            .format(self.properties["Name"],
 
240
        #                    unicode(command)))
 
241
        pass
 
242
    
205
243
    def got_secret(self):
206
 
        log.info("Client %s received its secret",
207
 
                 self.properties["Name"])
208
 
 
 
244
        self.logger('Client {0} received its secret'
 
245
                    .format(self.properties["Name"]))
 
246
    
209
247
    def need_approval(self, timeout, default):
210
248
        if not default:
211
 
            message = "Client %s needs approval within %f seconds"
 
249
            message = 'Client {0} needs approval within {1} seconds'
212
250
        else:
213
 
            message = "Client %s will get its secret in %f seconds"
214
 
        log.info(message, self.properties["Name"], timeout/1000)
215
 
 
 
251
            message = 'Client {0} will get its secret in {1} seconds'
 
252
        self.logger(message.format(self.properties["Name"],
 
253
                                   timeout/1000))
 
254
        self.using_timer(True)
 
255
    
216
256
    def rejected(self, reason):
217
 
        log.info("Client %s was rejected; reason: %s",
218
 
                 self.properties["Name"], reason)
219
 
 
 
257
        self.logger('Client {0} was rejected; reason: {1}'
 
258
                    .format(self.properties["Name"], reason))
 
259
    
220
260
    def selectable(self):
221
261
        """Make this a "selectable" widget.
222
262
        This overrides the method from urwid.FlowWidget."""
223
263
        return True
224
 
 
 
264
    
225
265
    def rows(self, maxcolrow, focus=False):
226
266
        """How many rows this widget will occupy might depend on
227
267
        whether we have focus or not.
228
268
        This overrides the method from urwid.FlowWidget"""
229
269
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
230
 
 
 
270
    
231
271
    def current_widget(self, focus=False):
232
272
        if focus or self.opened:
233
273
            return self._focus_widget
234
274
        return self._widget
235
 
 
 
275
    
236
276
    def update(self):
237
277
        "Called when what is visible on the screen should be updated."
238
278
        # 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
 
                         }
 
279
        with_standout = { "normal": "standout",
 
280
                          "bold": "bold-standout",
 
281
                          "underline-blink":
 
282
                              "underline-blink-standout",
 
283
                          "bold-underline-blink":
 
284
                              "bold-underline-blink-standout",
 
285
                          }
246
286
 
247
287
        # Rebuild focus and non-focus widgets using current properties
248
288
 
249
289
        # Base part of a client. Name!
250
 
        base = "{name}: ".format(name=self.properties["Name"])
 
290
        base = '{name}: '.format(name=self.properties["Name"])
251
291
        if not self.properties["Enabled"]:
252
292
            message = "DISABLED"
253
 
            self.using_timer(False)
254
293
        elif self.properties["ApprovalPending"]:
255
 
            timeout = datetime.timedelta(
256
 
                milliseconds=self.properties["ApprovalDelay"])
 
294
            timeout = datetime.timedelta(milliseconds
 
295
                                         = self.properties
 
296
                                         ["ApprovalDelay"])
257
297
            last_approval_request = isoformat_to_datetime(
258
298
                self.properties["LastApprovalRequest"])
259
299
            if last_approval_request is not None:
260
 
                timer = max(timeout - (datetime.datetime.utcnow()
261
 
                                       - last_approval_request),
262
 
                            datetime.timedelta())
 
300
                timer = timeout - (datetime.datetime.utcnow()
 
301
                                   - last_approval_request)
263
302
            else:
264
303
                timer = datetime.timedelta()
265
304
            if self.properties["ApprovedByDefault"]:
266
 
                message = "Approval in {}. (d)eny?"
 
305
                message = "Approval in {0}. (d)eny?"
267
306
            else:
268
 
                message = "Denial in {}. (a)pprove?"
269
 
            message = message.format(str(timer).rsplit(".", 1)[0])
270
 
            self.using_timer(True)
 
307
                message = "Denial in {0}. (a)pprove?"
 
308
            message = message.format(unicode(timer).rsplit(".", 1)[0])
271
309
        elif self.properties["LastCheckerStatus"] != 0:
272
310
            # When checker has failed, show timer until client expires
273
311
            expires = self.properties["Expires"]
275
313
                timer = datetime.timedelta(0)
276
314
            else:
277
315
                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)
 
316
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
317
                timer = expires - datetime.datetime.utcnow()
 
318
            message = ('A checker has failed! Time until client'
 
319
                       ' gets disabled: {0}'
 
320
                       .format(unicode(timer).rsplit(".", 1)[0]))
285
321
        else:
286
322
            message = "enabled"
287
 
            self.using_timer(False)
288
 
        self._text = "{}{}".format(base, message)
289
 
 
 
323
        self._text = "{0}{1}".format(base, message)
 
324
            
290
325
        if not urwid.supports_unicode():
291
326
            self._text = self._text.encode("ascii", "replace")
292
327
        textlist = [("normal", self._text)]
302
337
        # Run update hook, if any
303
338
        if self.update_hook is not None:
304
339
            self.update_hook()
305
 
 
 
340
    
306
341
    def update_timer(self):
307
 
        """called by GLib. Will indefinitely loop until
308
 
        GLib.source_remove() on tag is called
309
 
        """
 
342
        """called by gobject. Will indefinitely loop until
 
343
        gobject.source_remove() on tag is called"""
310
344
        self.update()
311
345
        return True             # Keep calling this
312
 
 
313
 
    def delete(self, **kwargs):
 
346
    
 
347
    def delete(self, *args, **kwargs):
314
348
        if self._update_timer_callback_tag is not None:
315
 
            GLib.source_remove(self._update_timer_callback_tag)
 
349
            gobject.source_remove(self._update_timer_callback_tag)
316
350
            self._update_timer_callback_tag = None
317
351
        for match in self.match_objects:
318
352
            match.remove()
319
353
        self.match_objects = ()
320
354
        if self.delete_hook is not None:
321
355
            self.delete_hook(self)
322
 
        return super(MandosClientWidget, self).delete(**kwargs)
323
 
 
 
356
        return super(MandosClientWidget, self).delete(*args, **kwargs)
 
357
    
324
358
    def render(self, maxcolrow, focus=False):
325
359
        """Render differently if we have focus.
326
360
        This overrides the method from urwid.FlowWidget"""
327
361
        return self.current_widget(focus).render(maxcolrow,
328
362
                                                 focus=focus)
329
 
 
 
363
    
330
364
    def keypress(self, maxcolrow, key):
331
365
        """Handle keys.
332
366
        This overrides the method from urwid.FlowWidget"""
333
367
        if key == "+":
334
 
            self.proxy.Set(client_interface, "Enabled",
335
 
                           dbus.Boolean(True), ignore_reply=True,
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
368
            self.proxy.Enable(dbus_interface = client_interface,
 
369
                              ignore_reply=True)
337
370
        elif key == "-":
338
 
            self.proxy.Set(client_interface, "Enabled", False,
339
 
                           ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
371
            self.proxy.Disable(dbus_interface = client_interface,
 
372
                               ignore_reply=True)
341
373
        elif key == "a":
342
374
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
343
 
                               dbus_interface=client_interface,
 
375
                               dbus_interface = client_interface,
344
376
                               ignore_reply=True)
345
377
        elif key == "d":
346
378
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
347
 
                               dbus_interface=client_interface,
 
379
                                  dbus_interface = client_interface,
348
380
                               ignore_reply=True)
349
381
        elif key == "R" or key == "_" or key == "ctrl k":
350
382
            self.server_proxy_object.RemoveClient(self.proxy
351
383
                                                  .object_path,
352
384
                                                  ignore_reply=True)
353
385
        elif key == "s":
354
 
            self.proxy.Set(client_interface, "CheckerRunning",
355
 
                           dbus.Boolean(True), ignore_reply=True,
356
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
386
            self.proxy.StartChecker(dbus_interface = client_interface,
 
387
                                    ignore_reply=True)
357
388
        elif key == "S":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(False), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
 
389
            self.proxy.StopChecker(dbus_interface = client_interface,
 
390
                                   ignore_reply=True)
361
391
        elif key == "C":
362
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
 
392
            self.proxy.CheckedOK(dbus_interface = client_interface,
363
393
                                 ignore_reply=True)
364
394
        # xxx
365
395
#         elif key == "p" or key == "=":
370
400
#             self.open()
371
401
        else:
372
402
            return key
373
 
 
374
 
    def properties_changed(self, interface, properties, invalidated):
375
 
        """Call self.update() if any properties changed.
 
403
    
 
404
    def property_changed(self, property=None, value=None,
 
405
                         *args, **kwargs):
 
406
        """Call self.update() if old value is not new value.
376
407
        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):
 
408
        property_name = unicode(property)
 
409
        old_value = self.properties.get(property_name)
 
410
        super(MandosClientWidget, self).property_changed(
 
411
            property=property, value=value, *args, **kwargs)
 
412
        if self.properties.get(property_name) != old_value:
383
413
            self.update()
384
414
 
385
415
 
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
416
class ConstrainedListBox(urwid.ListBox):
397
417
    """Like a normal urwid.ListBox, but will consume all "up" or
398
418
    "down" key presses, thus not allowing any containing widgets to
399
419
    use them as an excuse to shift focus away from this widget.
400
420
    """
401
 
    def keypress(self, *args, **kwargs):
402
 
        ret = (super(ConstrainedListBox, self)
403
 
               .keypress(*args, **kwargs))
 
421
    def keypress(self, maxcolrow, key):
 
422
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
404
423
        if ret in ("up", "down"):
405
424
            return
406
425
        return ret
412
431
    """
413
432
    def __init__(self, max_log_length=1000):
414
433
        DBusGMainLoop(set_as_default=True)
415
 
 
 
434
        
416
435
        self.screen = urwid.curses_display.Screen()
417
 
 
 
436
        
418
437
        self.screen.register_palette((
419
438
                ("normal",
420
439
                 "default", "default", None),
421
440
                ("bold",
422
 
                 "bold", "default", "bold"),
 
441
                 "default", "default", "bold"),
423
442
                ("underline-blink",
424
 
                 "underline,blink", "default", "underline,blink"),
 
443
                 "default", "default", "underline"),
425
444
                ("standout",
426
 
                 "standout", "default", "standout"),
 
445
                 "default", "default", "standout"),
427
446
                ("bold-underline-blink",
428
 
                 "bold,underline,blink", "default",
429
 
                 "bold,underline,blink"),
 
447
                 "default", "default", ("bold", "underline")),
430
448
                ("bold-standout",
431
 
                 "bold,standout", "default", "bold,standout"),
 
449
                 "default", "default", ("bold", "standout")),
432
450
                ("underline-blink-standout",
433
 
                 "underline,blink,standout", "default",
434
 
                 "underline,blink,standout"),
 
451
                 "default", "default", ("underline", "standout")),
435
452
                ("bold-underline-blink-standout",
436
 
                 "bold,underline,blink,standout", "default",
437
 
                 "bold,underline,blink,standout"),
 
453
                 "default", "default", ("bold", "underline",
 
454
                                          "standout")),
438
455
                ))
439
 
 
 
456
        
440
457
        if urwid.supports_unicode():
441
 
            self.divider = "─"  # \u2500
 
458
            self.divider = "─" # \u2500
 
459
            #self.divider = "━" # \u2501
442
460
        else:
443
 
            self.divider = "_"  # \u005f
444
 
 
 
461
            #self.divider = "-" # \u002d
 
462
            self.divider = "_" # \u005f
 
463
        
445
464
        self.screen.start()
446
 
 
 
465
        
447
466
        self.size = self.screen.get_cols_rows()
448
 
 
 
467
        
449
468
        self.clients = urwid.SimpleListWalker([])
450
469
        self.clients_dict = {}
451
 
 
 
470
        
452
471
        # We will add Text widgets to this list
453
 
        self.log = urwid.SimpleListWalker([])
 
472
        self.log = []
454
473
        self.max_log_length = max_log_length
455
 
 
 
474
        
456
475
        # We keep a reference to the log widget so we can remove it
457
476
        # from the ListWalker without it getting destroyed
458
477
        self.logbox = ConstrainedListBox(self.log)
459
 
 
 
478
        
460
479
        # This keeps track of whether self.uilist currently has
461
480
        # self.logbox in it or not
462
481
        self.log_visible = True
463
482
        self.log_wrap = "any"
464
 
 
465
 
        self.loghandler = UILogHandler(self)
466
 
 
 
483
        
467
484
        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
 
 
 
485
        self.log_message_raw(("bold",
 
486
                              "Mandos Monitor version " + version))
 
487
        self.log_message_raw(("bold",
 
488
                              "q: Quit  ?: Help"))
 
489
        
 
490
        self.busname = domain + '.Mandos'
 
491
        self.main_loop = gobject.MainLoop()
 
492
    
 
493
    def client_not_found(self, fingerprint, address):
 
494
        self.log_message("Client with address {0} and fingerprint"
 
495
                         " {1} could not be found"
 
496
                         .format(address, fingerprint))
 
497
    
479
498
    def rebuild(self):
480
499
        """This rebuilds the User Interface.
481
500
        Call this when the widget layout needs to change"""
482
501
        self.uilist = []
483
 
        # self.uilist.append(urwid.ListBox(self.clients))
 
502
        #self.uilist.append(urwid.ListBox(self.clients))
484
503
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
485
504
                                                          clients),
486
 
                                       # header=urwid.Divider(),
 
505
                                       #header=urwid.Divider(),
487
506
                                       header=None,
488
 
                                       footer=urwid.Divider(
489
 
                                           div_char=self.divider)))
 
507
                                       footer=
 
508
                                       urwid.Divider(div_char=
 
509
                                                     self.divider)))
490
510
        if self.log_visible:
491
511
            self.uilist.append(self.logbox)
492
512
        self.topwidget = urwid.Pile(self.uilist)
493
 
 
494
 
    def add_log_line(self, markup):
 
513
    
 
514
    def log_message(self, message):
 
515
        timestamp = datetime.datetime.now().isoformat()
 
516
        self.log_message_raw(timestamp + ": " + message)
 
517
    
 
518
    def log_message_raw(self, markup):
 
519
        """Add a log message to the log buffer."""
495
520
        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,
 
521
        if (self.max_log_length
 
522
            and len(self.log) > self.max_log_length):
 
523
            del self.log[0:len(self.log)-self.max_log_length-1]
 
524
        self.logbox.set_focus(len(self.logbox.body.contents),
500
525
                              coming_from="above")
501
526
        self.refresh()
502
 
 
 
527
    
503
528
    def toggle_log_display(self):
504
529
        """Toggle visibility of the log buffer."""
505
530
        self.log_visible = not self.log_visible
506
531
        self.rebuild()
507
 
        log.debug("Log visibility changed to: %s", self.log_visible)
508
 
 
 
532
        #self.log_message("Log visibility changed to: "
 
533
        #                 + unicode(self.log_visible))
 
534
    
509
535
    def change_log_display(self):
510
536
        """Change type of log display.
511
537
        Currently, this toggles wrapping of text lines."""
515
541
            self.log_wrap = "clip"
516
542
        for textwidget in self.log:
517
543
            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):
 
544
        #self.log_message("Wrap mode: " + self.log_wrap)
 
545
    
 
546
    def find_and_remove_client(self, path, name):
521
547
        """Find a client by its object path and remove it.
522
 
 
523
 
        This is connected to the InterfacesRemoved signal from the
 
548
        
 
549
        This is connected to the ClientRemoved signal from the
524
550
        Mandos server object."""
525
 
        if client_interface not in interfaces:
526
 
            # Not a Mandos client object; ignore
527
 
            return
528
551
        try:
529
552
            client = self.clients_dict[path]
530
553
        except KeyError:
531
554
            # not found?
532
 
            log.warning("Unknown client %s removed", path)
 
555
            self.log_message("Unknown client {0!r} ({1!r}) removed"
 
556
                             .format(name, path))
533
557
            return
534
558
        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
 
559
    
 
560
    def add_new_client(self, path):
545
561
        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])),
 
562
        self.add_client(MandosClientWidget(server_proxy_object
 
563
                                           =self.mandos_serv,
 
564
                                           proxy_object
 
565
                                           =client_proxy_object,
 
566
                                           update_hook
 
567
                                           =self.refresh,
 
568
                                           delete_hook
 
569
                                           =self.remove_client,
 
570
                                           logger
 
571
                                           =self.log_message),
552
572
                        path=path)
553
 
 
 
573
    
554
574
    def add_client(self, client, path=None):
555
575
        self.clients.append(client)
556
576
        if path is None:
557
577
            path = client.proxy.object_path
558
578
        self.clients_dict[path] = client
559
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
579
        self.clients.sort(None, lambda c: c.properties["Name"])
560
580
        self.refresh()
561
 
 
 
581
    
562
582
    def remove_client(self, client, path=None):
563
583
        self.clients.remove(client)
564
584
        if path is None:
565
585
            path = client.proxy.object_path
566
586
        del self.clients_dict[path]
 
587
        if not self.clients_dict:
 
588
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
589
            # is completely emptied, we need to recreate it.
 
590
            self.clients = urwid.SimpleListWalker([])
 
591
            self.rebuild()
567
592
        self.refresh()
568
 
 
 
593
    
569
594
    def refresh(self):
570
595
        """Redraw the screen"""
571
596
        canvas = self.topwidget.render(self.size, focus=True)
572
597
        self.screen.draw_screen(self.size, canvas)
573
 
 
 
598
    
574
599
    def run(self):
575
600
        """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
601
        self.bus = dbus.SystemBus()
582
602
        mandos_dbus_objc = self.bus.get_object(
583
603
            self.busname, "/", follow_name_owner_changes=True)
584
 
        self.mandos_serv = dbus.Interface(
585
 
            mandos_dbus_objc, dbus_interface=server_interface)
 
604
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
605
                                          dbus_interface
 
606
                                          = server_interface)
586
607
        try:
587
608
            mandos_clients = (self.mandos_serv
588
609
                              .GetAllClientsWithProperties())
589
 
            if not mandos_clients:
590
 
                log.warning("Note: Server has no clients.")
591
610
        except dbus.exceptions.DBusException:
592
 
            log.warning("Note: No Mandos server running.")
593
611
            mandos_clients = dbus.Dictionary()
594
 
 
 
612
        
595
613
        (self.mandos_serv
596
 
         .connect_to_signal("InterfacesRemoved",
 
614
         .connect_to_signal("ClientRemoved",
597
615
                            self.find_and_remove_client,
598
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
616
                            dbus_interface=server_interface,
599
617
                            byte_arrays=True))
600
618
        (self.mandos_serv
601
 
         .connect_to_signal("InterfacesAdded",
 
619
         .connect_to_signal("ClientAdded",
602
620
                            self.add_new_client,
603
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
621
                            dbus_interface=server_interface,
604
622
                            byte_arrays=True))
605
623
        (self.mandos_serv
606
624
         .connect_to_signal("ClientNotFound",
607
625
                            self.client_not_found,
608
626
                            dbus_interface=server_interface,
609
627
                            byte_arrays=True))
610
 
        for path, client in mandos_clients.items():
 
628
        for path, client in mandos_clients.iteritems():
611
629
            client_proxy_object = self.bus.get_object(self.busname,
612
630
                                                      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),
 
631
            self.add_client(MandosClientWidget(server_proxy_object
 
632
                                               =self.mandos_serv,
 
633
                                               proxy_object
 
634
                                               =client_proxy_object,
 
635
                                               properties=client,
 
636
                                               update_hook
 
637
                                               =self.refresh,
 
638
                                               delete_hook
 
639
                                               =self.remove_client,
 
640
                                               logger
 
641
                                               =self.log_message),
619
642
                            path=path)
620
643
 
621
644
        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)))
 
645
        self._input_callback_tag = (gobject.io_add_watch
 
646
                                    (sys.stdin.fileno(),
 
647
                                     gobject.IO_IN,
 
648
                                     self.process_input))
627
649
        self.main_loop.run()
628
650
        # 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
 
 
 
651
        gobject.source_remove(self._input_callback_tag)
 
652
        self.screen.stop()
 
653
    
634
654
    def stop(self):
635
655
        self.main_loop.quit()
636
 
        log.removeHandler(self.loghandler)
637
 
        log.propagate = self.orig_log_propagate
638
 
 
 
656
    
639
657
    def process_input(self, source, condition):
640
658
        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
 
                        }
 
659
        translations = { "ctrl n": "down",      # Emacs
 
660
                         "ctrl p": "up",        # Emacs
 
661
                         "ctrl v": "page down", # Emacs
 
662
                         "meta v": "page up",   # Emacs
 
663
                         " ": "page down",      # less
 
664
                         "f": "page down",      # less
 
665
                         "b": "page up",        # less
 
666
                         "j": "down",           # vi
 
667
                         "k": "up",             # vi
 
668
                         }
651
669
        for key in keys:
652
670
            try:
653
671
                key = translations[key]
654
672
            except KeyError:    # :-)
655
673
                pass
656
 
 
 
674
            
657
675
            if key == "q" or key == "Q":
658
676
                self.stop()
659
677
                break
660
678
            elif key == "window resize":
661
679
                self.size = self.screen.get_cols_rows()
662
680
                self.refresh()
663
 
            elif key == "ctrl l":
664
 
                self.screen.clear()
 
681
            elif key == "\f":  # Ctrl-L
665
682
                self.refresh()
666
683
            elif key == "l" or key == "D":
667
684
                self.toggle_log_display()
673
690
                if not self.log_visible:
674
691
                    self.log_visible = True
675
692
                    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
 
                                   ))))
 
693
                self.log_message_raw(("bold",
 
694
                                      "  ".
 
695
                                      join(("q: Quit",
 
696
                                            "?: Help",
 
697
                                            "l: Log window toggle",
 
698
                                            "TAB: Switch window",
 
699
                                            "w: Wrap (log)"))))
 
700
                self.log_message_raw(("bold",
 
701
                                      "  "
 
702
                                      .join(("Clients:",
 
703
                                             "+: Enable",
 
704
                                             "-: Disable",
 
705
                                             "R: Remove",
 
706
                                             "s: Start new checker",
 
707
                                             "S: Stop checker",
 
708
                                             "C: Checker OK",
 
709
                                             "a: Approve",
 
710
                                             "d: Deny"))))
695
711
                self.refresh()
696
712
            elif key == "tab":
697
713
                if self.topwidget.get_focus() is self.logbox:
699
715
                else:
700
716
                    self.topwidget.set_focus(self.logbox)
701
717
                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
 
718
            #elif (key == "end" or key == "meta >" or key == "G"
 
719
            #      or key == ">"):
 
720
            #    pass            # xxx end-of-buffer
 
721
            #elif (key == "home" or key == "meta <" or key == "g"
 
722
            #      or key == "<"):
 
723
            #    pass            # xxx beginning-of-buffer
 
724
            #elif key == "ctrl e" or key == "$":
 
725
            #    pass            # xxx move-end-of-line
 
726
            #elif key == "ctrl a" or key == "^":
 
727
            #    pass            # xxx move-beginning-of-line
 
728
            #elif key == "ctrl b" or key == "meta (" or key == "h":
 
729
            #    pass            # xxx left
 
730
            #elif key == "ctrl f" or key == "meta )" or key == "l":
 
731
            #    pass            # xxx right
 
732
            #elif key == "a":
 
733
            #    pass            # scroll up log
 
734
            #elif key == "z":
 
735
            #    pass            # scroll down log
727
736
            elif self.topwidget.selectable():
728
737
                self.topwidget.keypress(self.size, key)
729
738
                self.refresh()
730
739
        return True
731
740
 
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
741
ui = UserInterface()
747
742
try:
748
743
    ui.run()
749
744
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()
 
745
    ui.screen.stop()
 
746
except Exception, e:
 
747
    ui.log_message(unicode(e))
 
748
    ui.screen.stop()
757
749
    raise