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  • Committer: Teddy Hogeborn
  • Date: 2019-11-21 19:50:51 UTC
  • Revision ID: teddy@recompile.se-20191121195051-jq57g07ybacsjw3r
Makefile: Declare phoniness of targets at each target

Instead of having one global list of .PHONY targets, with its
associated risk of that list becoming out-of-date, declare a target to
be phony at each target declaration.

* Makefile (.PHONY): Remove global list.  Spread out .PHONY
  declarations to be located before the declaration of each target.

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mandos-monitor
1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
# 
 
3
#
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
 
# 
6
 
# Copyright © 2009-2011 Teddy Hogeborn
7
 
# Copyright © 2009-2011 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
 
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
11
13
# the Free Software Foundation, either version 3 of the License, or
12
14
# (at your option) any later version.
13
15
#
14
 
#     This program is distributed in the hope that it will be useful,
15
 
#     but WITHOUT ANY WARRANTY; without even the implied warranty of
 
16
#     Mandos is distributed in the hope that it will be useful, but
 
17
#     WITHOUT ANY WARRANTY; without even the implied warranty of
16
18
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
19
#     GNU General Public License for more details.
18
 
# 
 
20
#
19
21
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
21
 
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
23
 
# 
 
22
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
23
#
 
24
# Contact the authors at <mandos@recompile.se>.
 
25
#
24
26
 
25
27
from __future__ import (division, absolute_import, print_function,
26
28
                        unicode_literals)
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
27
33
 
28
34
import sys
29
35
import os
30
 
import signal
31
 
 
 
36
import warnings
32
37
import datetime
 
38
import locale
 
39
import logging
33
40
 
34
41
import urwid.curses_display
35
42
import urwid
36
43
 
37
44
from dbus.mainloop.glib import DBusGMainLoop
38
 
import gobject
 
45
from gi.repository import GLib
39
46
 
40
47
import dbus
41
48
 
42
 
import UserList
43
 
 
44
 
import locale
45
 
 
46
 
locale.setlocale(locale.LC_ALL, '')
47
 
 
48
 
import logging
49
 
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
 
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)
50
61
 
51
62
# Some useful constants
52
 
domain = 'se.bsnet.fukt'
53
 
server_interface = domain + '.Mandos'
54
 
client_interface = domain + '.Mandos.Client'
55
 
version = "1.3.1"
56
 
 
57
 
# Always run in monochrome mode
58
 
urwid.curses_display.curses.has_colors = lambda : False
59
 
 
60
 
# Urwid doesn't support blinking, but we want it.  Since we have no
61
 
# use for underline on its own, we make underline also always blink.
62
 
urwid.curses_display.curses.A_UNDERLINE |= (
63
 
    urwid.curses_display.curses.A_BLINK)
 
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
 
64
73
 
65
74
def isoformat_to_datetime(iso):
66
75
    "Parse an ISO 8601 date string to a datetime.datetime()"
75
84
                             int(day),
76
85
                             int(hour),
77
86
                             int(minute),
78
 
                             int(second),           # Whole seconds
79
 
                             int(fraction*1000000)) # Microseconds
 
87
                             int(second),            # Whole seconds
 
88
                             int(fraction*1000000))  # Microseconds
 
89
 
80
90
 
81
91
class MandosClientPropertyCache(object):
82
92
    """This wraps a Mandos Client D-Bus proxy object, caches the
83
93
    properties and calls a hook function when any of them are
84
94
    changed.
85
95
    """
86
 
    def __init__(self, proxy_object=None, *args, **kwargs):
87
 
        self.proxy = proxy_object # Mandos Client proxy object
88
 
        
89
 
        self.properties = dict()
 
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
90
99
        self.property_changed_match = (
91
 
            self.proxy.connect_to_signal("PropertyChanged",
92
 
                                         self.property_changed,
93
 
                                         client_interface,
 
100
            self.proxy.connect_to_signal("PropertiesChanged",
 
101
                                         self.properties_changed,
 
102
                                         dbus.PROPERTIES_IFACE,
94
103
                                         byte_arrays=True))
95
 
        
96
 
        self.properties.update(
97
 
            self.proxy.GetAll(client_interface,
98
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
99
 
 
100
 
        #XXX This breaks good super behaviour
101
 
#        super(MandosClientPropertyCache, self).__init__(
102
 
#            *args, **kwargs)
103
 
    
104
 
    def property_changed(self, property=None, value=None):
105
 
        """This is called whenever we get a PropertyChanged signal
106
 
        It updates the changed property in the "properties" dict.
 
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.
107
115
        """
108
116
        # Update properties dict with new value
109
 
        self.properties[property] = value
110
 
    
111
 
    def delete(self, *args, **kwargs):
 
117
        if interface == client_interface:
 
118
            self.properties.update(properties)
 
119
 
 
120
    def delete(self):
112
121
        self.property_changed_match.remove()
113
 
        super(MandosClientPropertyCache, self).__init__(
114
 
            *args, **kwargs)
115
122
 
116
123
 
117
124
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
118
125
    """A Mandos Client which is visible on the screen.
119
126
    """
120
 
    
 
127
 
121
128
    def __init__(self, server_proxy_object=None, update_hook=None,
122
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
129
                 delete_hook=None, **kwargs):
123
130
        # Called on update
124
131
        self.update_hook = update_hook
125
132
        # Called on delete
126
133
        self.delete_hook = delete_hook
127
134
        # Mandos Server proxy object
128
135
        self.server_proxy_object = server_proxy_object
129
 
        # Logger
130
 
        self.logger = logger
131
 
        
 
136
 
132
137
        self._update_timer_callback_tag = None
133
 
        self._update_timer_callback_lock = 0
134
 
        self.last_checker_failed = False
135
 
        
 
138
 
136
139
        # The widget shown normally
137
140
        self._text_widget = urwid.Text("")
138
141
        # The widget shown when we have focus
139
142
        self._focus_text_widget = urwid.Text("")
140
 
        super(MandosClientWidget, self).__init__(
141
 
            update_hook=update_hook, delete_hook=delete_hook,
142
 
            *args, **kwargs)
 
143
        super(MandosClientWidget, self).__init__(**kwargs)
143
144
        self.update()
144
145
        self.opened = False
145
 
        
146
 
        last_checked_ok = isoformat_to_datetime(self.properties
147
 
                                                ["LastCheckedOK"])
148
 
        if last_checked_ok is None:
149
 
            self.last_checker_failed = True
150
 
        else:
151
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
152
 
                                         - last_checked_ok)
153
 
                                        > datetime.timedelta
154
 
                                        (milliseconds=
155
 
                                         self.properties
156
 
                                         ["Interval"]))
157
 
        
158
 
        if self.last_checker_failed:
159
 
            self.using_timer(True)
160
 
        
161
 
        if self.need_approval:
162
 
            self.using_timer(True)
163
 
        
 
146
 
164
147
        self.match_objects = (
165
148
            self.proxy.connect_to_signal("CheckerCompleted",
166
149
                                         self.checker_completed,
182
165
                                         self.rejected,
183
166
                                         client_interface,
184
167
                                         byte_arrays=True))
185
 
        #self.logger('Created client %s' % (self.properties["Name"]))
186
 
    
187
 
    def property_changed(self, property=None, value=None):
188
 
        super(self, MandosClientWidget).property_changed(property,
189
 
                                                         value)
190
 
        if property == "ApprovalPending":
191
 
            using_timer(bool(value))
192
 
        
 
168
        log.debug("Created client %s", self.properties["Name"])
 
169
 
193
170
    def using_timer(self, flag):
194
171
        """Call this method with True or False when timer should be
195
172
        activated or deactivated.
196
173
        """
197
 
        old = self._update_timer_callback_lock
198
 
        if flag:
199
 
            self._update_timer_callback_lock += 1
200
 
        else:
201
 
            self._update_timer_callback_lock -= 1
202
 
        if old == 0 and self._update_timer_callback_lock:
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)
 
174
        if flag and self._update_timer_callback_tag is None:
 
175
            # Will update the shown timer value every second
 
176
            self._update_timer_callback_tag = (
 
177
                GLib.timeout_add(1000,
 
178
                                 glib_safely(self.update_timer)))
 
179
        elif not (flag or self._update_timer_callback_tag is None):
 
180
            GLib.source_remove(self._update_timer_callback_tag)
208
181
            self._update_timer_callback_tag = None
209
 
    
 
182
 
210
183
    def checker_completed(self, exitstatus, condition, command):
211
184
        if exitstatus == 0:
212
 
            if self.last_checker_failed:
213
 
                self.last_checker_failed = False
214
 
                self.using_timer(False)
215
 
            #self.logger('Checker for client %s (command "%s")'
216
 
            #            ' was successful'
217
 
            #            % (self.properties["Name"], command))
 
185
            log.debug('Checker for client %s (command "%s")'
 
186
                      " succeeded", self.properties["Name"], command)
218
187
            self.update()
219
188
            return
220
189
        # Checker failed
221
 
        if not self.last_checker_failed:
222
 
            self.last_checker_failed = True
223
 
            self.using_timer(True)
224
190
        if os.WIFEXITED(condition):
225
 
            self.logger('Checker for client %s (command "%s")'
226
 
                        ' failed with exit code %s'
227
 
                        % (self.properties["Name"], command,
228
 
                           os.WEXITSTATUS(condition)))
 
191
            log.info('Checker for client %s (command "%s") failed'
 
192
                     " with exit code %d", self.properties["Name"],
 
193
                     command, os.WEXITSTATUS(condition))
229
194
        elif os.WIFSIGNALED(condition):
230
 
            self.logger('Checker for client %s (command "%s")'
231
 
                        ' was killed by signal %s'
232
 
                        % (self.properties["Name"], command,
233
 
                           os.WTERMSIG(condition)))
234
 
        elif os.WCOREDUMP(condition):
235
 
            self.logger('Checker for client %s (command "%s")'
236
 
                        ' dumped core'
237
 
                        % (self.properties["Name"], command))
238
 
        else:
239
 
            self.logger('Checker for client %s completed'
240
 
                        ' mysteriously')
 
195
            log.info('Checker for client %s (command "%s") was'
 
196
                     " killed by signal %d", self.properties["Name"],
 
197
                     command, os.WTERMSIG(condition))
241
198
        self.update()
242
 
    
 
199
 
243
200
    def checker_started(self, command):
244
 
        #self.logger('Client %s started checker "%s"'
245
 
        #            % (self.properties["Name"], unicode(command)))
246
 
        pass
247
 
    
 
201
        """Server signals that a checker started."""
 
202
        log.debug('Client %s started checker "%s"',
 
203
                  self.properties["Name"], command)
 
204
 
248
205
    def got_secret(self):
249
 
        self.last_checker_failed = False
250
 
        self.logger('Client %s received its secret'
251
 
                    % self.properties["Name"])
252
 
    
 
206
        log.info("Client %s received its secret",
 
207
                 self.properties["Name"])
 
208
 
253
209
    def need_approval(self, timeout, default):
254
210
        if not default:
255
 
            message = 'Client %s needs approval within %s seconds'
 
211
            message = "Client %s needs approval within %f seconds"
256
212
        else:
257
 
            message = 'Client %s will get its secret in %s seconds'
258
 
        self.logger(message
259
 
                    % (self.properties["Name"], timeout/1000))
260
 
        self.using_timer(True)
261
 
    
 
213
            message = "Client %s will get its secret in %f seconds"
 
214
        log.info(message, self.properties["Name"], timeout/1000)
 
215
 
262
216
    def rejected(self, reason):
263
 
        self.logger('Client %s was rejected; reason: %s'
264
 
                    % (self.properties["Name"], reason))
265
 
    
 
217
        log.info("Client %s was rejected; reason: %s",
 
218
                 self.properties["Name"], reason)
 
219
 
266
220
    def selectable(self):
267
221
        """Make this a "selectable" widget.
268
222
        This overrides the method from urwid.FlowWidget."""
269
223
        return True
270
 
    
 
224
 
271
225
    def rows(self, maxcolrow, focus=False):
272
226
        """How many rows this widget will occupy might depend on
273
227
        whether we have focus or not.
274
228
        This overrides the method from urwid.FlowWidget"""
275
229
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
276
 
    
 
230
 
277
231
    def current_widget(self, focus=False):
278
232
        if focus or self.opened:
279
233
            return self._focus_widget
280
234
        return self._widget
281
 
    
 
235
 
282
236
    def update(self):
283
237
        "Called when what is visible on the screen should be updated."
284
238
        # How to add standout mode to a style
285
 
        with_standout = { "normal": "standout",
286
 
                          "bold": "bold-standout",
287
 
                          "underline-blink":
288
 
                              "underline-blink-standout",
289
 
                          "bold-underline-blink":
290
 
                              "bold-underline-blink-standout",
291
 
                          }
 
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
                         }
292
246
 
293
247
        # Rebuild focus and non-focus widgets using current properties
294
248
 
295
249
        # Base part of a client. Name!
296
 
        base = ('%(name)s: '
297
 
                      % {"name": self.properties["Name"]})
 
250
        base = "{name}: ".format(name=self.properties["Name"])
298
251
        if not self.properties["Enabled"]:
299
252
            message = "DISABLED"
 
253
            self.using_timer(False)
300
254
        elif self.properties["ApprovalPending"]:
301
 
            timeout = datetime.timedelta(milliseconds
302
 
                                         = self.properties
303
 
                                         ["ApprovalDelay"])
 
255
            timeout = datetime.timedelta(
 
256
                milliseconds=self.properties["ApprovalDelay"])
304
257
            last_approval_request = isoformat_to_datetime(
305
258
                self.properties["LastApprovalRequest"])
306
259
            if last_approval_request is not None:
307
 
                timer = timeout - (datetime.datetime.utcnow()
308
 
                                   - last_approval_request)
 
260
                timer = max(timeout - (datetime.datetime.utcnow()
 
261
                                       - last_approval_request),
 
262
                            datetime.timedelta())
309
263
            else:
310
264
                timer = datetime.timedelta()
311
265
            if self.properties["ApprovedByDefault"]:
312
 
                message = "Approval in %s. (d)eny?"
313
 
            else:
314
 
                message = "Denial in %s. (a)pprove?"
315
 
            message = message % unicode(timer).rsplit(".", 1)[0]
316
 
        elif self.last_checker_failed:
317
 
            timeout = datetime.timedelta(milliseconds
318
 
                                         = self.properties
319
 
                                         ["Timeout"])
320
 
            last_ok = isoformat_to_datetime(
321
 
                max((self.properties["LastCheckedOK"]
322
 
                     or self.properties["Created"]),
323
 
                    self.properties["LastEnabled"]))
324
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
325
 
            message = ('A checker has failed! Time until client'
326
 
                       ' gets disabled: %s'
327
 
                           % unicode(timer).rsplit(".", 1)[0])
 
266
                message = "Approval in {}. (d)eny?"
 
267
            else:
 
268
                message = "Denial in {}. (a)pprove?"
 
269
            message = message.format(str(timer).rsplit(".", 1)[0])
 
270
            self.using_timer(True)
 
271
        elif self.properties["LastCheckerStatus"] != 0:
 
272
            # When checker has failed, show timer until client expires
 
273
            expires = self.properties["Expires"]
 
274
            if expires == "":
 
275
                timer = datetime.timedelta(0)
 
276
            else:
 
277
                expires = (datetime.datetime.strptime
 
278
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
 
279
                timer = max(expires - datetime.datetime.utcnow(),
 
280
                            datetime.timedelta())
 
281
            message = ("A checker has failed! Time until client"
 
282
                       " gets disabled: {}"
 
283
                       .format(str(timer).rsplit(".", 1)[0]))
 
284
            self.using_timer(True)
328
285
        else:
329
286
            message = "enabled"
330
 
        self._text = "%s%s" % (base, message)
331
 
            
 
287
            self.using_timer(False)
 
288
        self._text = "{}{}".format(base, message)
 
289
 
332
290
        if not urwid.supports_unicode():
333
291
            self._text = self._text.encode("ascii", "replace")
334
292
        textlist = [("normal", self._text)]
344
302
        # Run update hook, if any
345
303
        if self.update_hook is not None:
346
304
            self.update_hook()
347
 
    
 
305
 
348
306
    def update_timer(self):
349
 
        "called by gobject"
 
307
        """called by GLib. Will indefinitely loop until
 
308
        GLib.source_remove() on tag is called
 
309
        """
350
310
        self.update()
351
311
        return True             # Keep calling this
352
 
    
353
 
    def delete(self, *args, **kwargs):
 
312
 
 
313
    def delete(self, **kwargs):
354
314
        if self._update_timer_callback_tag is not None:
355
 
            gobject.source_remove(self._update_timer_callback_tag)
 
315
            GLib.source_remove(self._update_timer_callback_tag)
356
316
            self._update_timer_callback_tag = None
357
317
        for match in self.match_objects:
358
318
            match.remove()
359
319
        self.match_objects = ()
360
320
        if self.delete_hook is not None:
361
321
            self.delete_hook(self)
362
 
        return super(MandosClientWidget, self).delete(*args, **kwargs)
363
 
    
 
322
        return super(MandosClientWidget, self).delete(**kwargs)
 
323
 
364
324
    def render(self, maxcolrow, focus=False):
365
325
        """Render differently if we have focus.
366
326
        This overrides the method from urwid.FlowWidget"""
367
327
        return self.current_widget(focus).render(maxcolrow,
368
328
                                                 focus=focus)
369
 
    
 
329
 
370
330
    def keypress(self, maxcolrow, key):
371
331
        """Handle keys.
372
332
        This overrides the method from urwid.FlowWidget"""
373
333
        if key == "+":
374
 
            self.proxy.Enable(dbus_interface = client_interface,
375
 
                              ignore_reply=True)
 
334
            self.proxy.Set(client_interface, "Enabled",
 
335
                           dbus.Boolean(True), ignore_reply=True,
 
336
                           dbus_interface=dbus.PROPERTIES_IFACE)
376
337
        elif key == "-":
377
 
            self.proxy.Disable(dbus_interface = client_interface,
378
 
                               ignore_reply=True)
 
338
            self.proxy.Set(client_interface, "Enabled", False,
 
339
                           ignore_reply=True,
 
340
                           dbus_interface=dbus.PROPERTIES_IFACE)
379
341
        elif key == "a":
380
342
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
381
 
                               dbus_interface = client_interface,
 
343
                               dbus_interface=client_interface,
382
344
                               ignore_reply=True)
383
345
        elif key == "d":
384
346
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
385
 
                                  dbus_interface = client_interface,
 
347
                               dbus_interface=client_interface,
386
348
                               ignore_reply=True)
387
349
        elif key == "R" or key == "_" or key == "ctrl k":
388
350
            self.server_proxy_object.RemoveClient(self.proxy
389
351
                                                  .object_path,
390
352
                                                  ignore_reply=True)
391
353
        elif key == "s":
392
 
            self.proxy.StartChecker(dbus_interface = client_interface,
393
 
                                    ignore_reply=True)
 
354
            self.proxy.Set(client_interface, "CheckerRunning",
 
355
                           dbus.Boolean(True), ignore_reply=True,
 
356
                           dbus_interface=dbus.PROPERTIES_IFACE)
394
357
        elif key == "S":
395
 
            self.proxy.StopChecker(dbus_interface = client_interface,
396
 
                                   ignore_reply=True)
 
358
            self.proxy.Set(client_interface, "CheckerRunning",
 
359
                           dbus.Boolean(False), ignore_reply=True,
 
360
                           dbus_interface=dbus.PROPERTIES_IFACE)
397
361
        elif key == "C":
398
 
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
362
            self.proxy.CheckedOK(dbus_interface=client_interface,
399
363
                                 ignore_reply=True)
400
364
        # xxx
401
365
#         elif key == "p" or key == "=":
406
370
#             self.open()
407
371
        else:
408
372
            return key
409
 
    
410
 
    def property_changed(self, property=None, value=None,
411
 
                         *args, **kwargs):
412
 
        """Call self.update() if old value is not new value.
 
373
 
 
374
    def properties_changed(self, interface, properties, invalidated):
 
375
        """Call self.update() if any properties changed.
413
376
        This overrides the method from MandosClientPropertyCache"""
414
 
        property_name = unicode(property)
415
 
        old_value = self.properties.get(property_name)
416
 
        super(MandosClientWidget, self).property_changed(
417
 
            property=property, value=value, *args, **kwargs)
418
 
        if self.properties.get(property_name) != old_value:
 
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):
419
383
            self.update()
420
384
 
421
385
 
 
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
 
422
396
class ConstrainedListBox(urwid.ListBox):
423
397
    """Like a normal urwid.ListBox, but will consume all "up" or
424
398
    "down" key presses, thus not allowing any containing widgets to
425
399
    use them as an excuse to shift focus away from this widget.
426
400
    """
427
 
    def keypress(self, maxcolrow, key):
428
 
        ret = super(ConstrainedListBox, self).keypress(maxcolrow, key)
 
401
    def keypress(self, *args, **kwargs):
 
402
        ret = (super(ConstrainedListBox, self)
 
403
               .keypress(*args, **kwargs))
429
404
        if ret in ("up", "down"):
430
405
            return
431
406
        return ret
437
412
    """
438
413
    def __init__(self, max_log_length=1000):
439
414
        DBusGMainLoop(set_as_default=True)
440
 
        
 
415
 
441
416
        self.screen = urwid.curses_display.Screen()
442
 
        
 
417
 
443
418
        self.screen.register_palette((
444
419
                ("normal",
445
420
                 "default", "default", None),
446
421
                ("bold",
447
 
                 "default", "default", "bold"),
 
422
                 "bold", "default", "bold"),
448
423
                ("underline-blink",
449
 
                 "default", "default", "underline"),
 
424
                 "underline,blink", "default", "underline,blink"),
450
425
                ("standout",
451
 
                 "default", "default", "standout"),
 
426
                 "standout", "default", "standout"),
452
427
                ("bold-underline-blink",
453
 
                 "default", "default", ("bold", "underline")),
 
428
                 "bold,underline,blink", "default",
 
429
                 "bold,underline,blink"),
454
430
                ("bold-standout",
455
 
                 "default", "default", ("bold", "standout")),
 
431
                 "bold,standout", "default", "bold,standout"),
456
432
                ("underline-blink-standout",
457
 
                 "default", "default", ("underline", "standout")),
 
433
                 "underline,blink,standout", "default",
 
434
                 "underline,blink,standout"),
458
435
                ("bold-underline-blink-standout",
459
 
                 "default", "default", ("bold", "underline",
460
 
                                          "standout")),
 
436
                 "bold,underline,blink,standout", "default",
 
437
                 "bold,underline,blink,standout"),
461
438
                ))
462
 
        
 
439
 
463
440
        if urwid.supports_unicode():
464
 
            self.divider = "─" # \u2500
465
 
            #self.divider = "━" # \u2501
 
441
            self.divider = "─"  # \u2500
466
442
        else:
467
 
            #self.divider = "-" # \u002d
468
 
            self.divider = "_" # \u005f
469
 
        
 
443
            self.divider = "_"  # \u005f
 
444
 
470
445
        self.screen.start()
471
 
        
 
446
 
472
447
        self.size = self.screen.get_cols_rows()
473
 
        
 
448
 
474
449
        self.clients = urwid.SimpleListWalker([])
475
450
        self.clients_dict = {}
476
 
        
 
451
 
477
452
        # We will add Text widgets to this list
478
 
        self.log = []
 
453
        self.log = urwid.SimpleListWalker([])
479
454
        self.max_log_length = max_log_length
480
 
        
 
455
 
481
456
        # We keep a reference to the log widget so we can remove it
482
457
        # from the ListWalker without it getting destroyed
483
458
        self.logbox = ConstrainedListBox(self.log)
484
 
        
 
459
 
485
460
        # This keeps track of whether self.uilist currently has
486
461
        # self.logbox in it or not
487
462
        self.log_visible = True
488
463
        self.log_wrap = "any"
489
 
        
 
464
 
 
465
        self.loghandler = UILogHandler(self)
 
466
 
490
467
        self.rebuild()
491
 
        self.log_message_raw(("bold",
492
 
                              "Mandos Monitor version " + version))
493
 
        self.log_message_raw(("bold",
494
 
                              "q: Quit  ?: Help"))
495
 
        
496
 
        self.busname = domain + '.Mandos'
497
 
        self.main_loop = gobject.MainLoop()
498
 
        self.bus = dbus.SystemBus()
499
 
        mandos_dbus_objc = self.bus.get_object(
500
 
            self.busname, "/", follow_name_owner_changes=True)
501
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
502
 
                                          dbus_interface
503
 
                                          = server_interface)
504
 
        try:
505
 
            mandos_clients = (self.mandos_serv
506
 
                              .GetAllClientsWithProperties())
507
 
        except dbus.exceptions.DBusException:
508
 
            mandos_clients = dbus.Dictionary()
509
 
        
510
 
        (self.mandos_serv
511
 
         .connect_to_signal("ClientRemoved",
512
 
                            self.find_and_remove_client,
513
 
                            dbus_interface=server_interface,
514
 
                            byte_arrays=True))
515
 
        (self.mandos_serv
516
 
         .connect_to_signal("ClientAdded",
517
 
                            self.add_new_client,
518
 
                            dbus_interface=server_interface,
519
 
                            byte_arrays=True))
520
 
        (self.mandos_serv
521
 
         .connect_to_signal("ClientNotFound",
522
 
                            self.client_not_found,
523
 
                            dbus_interface=server_interface,
524
 
                            byte_arrays=True))
525
 
        for path, client in mandos_clients.iteritems():
526
 
            client_proxy_object = self.bus.get_object(self.busname,
527
 
                                                      path)
528
 
            self.add_client(MandosClientWidget(server_proxy_object
529
 
                                               =self.mandos_serv,
530
 
                                               proxy_object
531
 
                                               =client_proxy_object,
532
 
                                               properties=client,
533
 
                                               update_hook
534
 
                                               =self.refresh,
535
 
                                               delete_hook
536
 
                                               =self.remove_client,
537
 
                                               logger
538
 
                                               =self.log_message),
539
 
                            path=path)
540
 
    
541
 
    def client_not_found(self, fingerprint, address):
542
 
        self.log_message(("Client with address %s and fingerprint %s"
543
 
                          " could not be found" % (address,
544
 
                                                    fingerprint)))
545
 
    
 
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
 
546
479
    def rebuild(self):
547
480
        """This rebuilds the User Interface.
548
481
        Call this when the widget layout needs to change"""
549
482
        self.uilist = []
550
 
        #self.uilist.append(urwid.ListBox(self.clients))
 
483
        # self.uilist.append(urwid.ListBox(self.clients))
551
484
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
552
485
                                                          clients),
553
 
                                       #header=urwid.Divider(),
 
486
                                       # header=urwid.Divider(),
554
487
                                       header=None,
555
 
                                       footer=
556
 
                                       urwid.Divider(div_char=
557
 
                                                     self.divider)))
 
488
                                       footer=urwid.Divider(
 
489
                                           div_char=self.divider)))
558
490
        if self.log_visible:
559
491
            self.uilist.append(self.logbox)
560
 
            pass
561
492
        self.topwidget = urwid.Pile(self.uilist)
562
 
    
563
 
    def log_message(self, message):
564
 
        timestamp = datetime.datetime.now().isoformat()
565
 
        self.log_message_raw(timestamp + ": " + message)
566
 
    
567
 
    def log_message_raw(self, markup):
568
 
        """Add a log message to the log buffer."""
 
493
 
 
494
    def add_log_line(self, markup):
569
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
570
 
        if (self.max_log_length
571
 
            and len(self.log) > self.max_log_length):
572
 
            del self.log[0:len(self.log)-self.max_log_length-1]
573
 
        self.logbox.set_focus(len(self.logbox.body.contents),
 
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,
574
500
                              coming_from="above")
575
501
        self.refresh()
576
 
    
 
502
 
577
503
    def toggle_log_display(self):
578
504
        """Toggle visibility of the log buffer."""
579
505
        self.log_visible = not self.log_visible
580
506
        self.rebuild()
581
 
        #self.log_message("Log visibility changed to: "
582
 
        #                 + unicode(self.log_visible))
583
 
    
 
507
        log.debug("Log visibility changed to: %s", self.log_visible)
 
508
 
584
509
    def change_log_display(self):
585
510
        """Change type of log display.
586
511
        Currently, this toggles wrapping of text lines."""
590
515
            self.log_wrap = "clip"
591
516
        for textwidget in self.log:
592
517
            textwidget.set_wrap_mode(self.log_wrap)
593
 
        #self.log_message("Wrap mode: " + self.log_wrap)
594
 
    
595
 
    def find_and_remove_client(self, path, name):
 
518
        log.debug("Wrap mode: %s", self.log_wrap)
 
519
 
 
520
    def find_and_remove_client(self, path, interfaces):
596
521
        """Find a client by its object path and remove it.
597
 
        
598
 
        This is connected to the ClientRemoved signal from the
 
522
 
 
523
        This is connected to the InterfacesRemoved signal from the
599
524
        Mandos server object."""
 
525
        if client_interface not in interfaces:
 
526
            # Not a Mandos client object; ignore
 
527
            return
600
528
        try:
601
529
            client = self.clients_dict[path]
602
530
        except KeyError:
603
531
            # not found?
604
 
            self.log_message("Unknown client %r (%r) removed", name,
605
 
                             path)
 
532
            log.warning("Unknown client %s removed", path)
606
533
            return
607
534
        client.delete()
608
 
    
609
 
    def add_new_client(self, path):
 
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
610
545
        client_proxy_object = self.bus.get_object(self.busname, path)
611
 
        self.add_client(MandosClientWidget(server_proxy_object
612
 
                                           =self.mandos_serv,
613
 
                                           proxy_object
614
 
                                           =client_proxy_object,
615
 
                                           update_hook
616
 
                                           =self.refresh,
617
 
                                           delete_hook
618
 
                                           =self.remove_client,
619
 
                                           logger
620
 
                                           =self.log_message),
 
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])),
621
552
                        path=path)
622
 
    
 
553
 
623
554
    def add_client(self, client, path=None):
624
555
        self.clients.append(client)
625
556
        if path is None:
626
557
            path = client.proxy.object_path
627
558
        self.clients_dict[path] = client
628
 
        self.clients.sort(None, lambda c: c.properties["Name"])
 
559
        self.clients.sort(key=lambda c: c.properties["Name"])
629
560
        self.refresh()
630
 
    
 
561
 
631
562
    def remove_client(self, client, path=None):
632
563
        self.clients.remove(client)
633
564
        if path is None:
634
565
            path = client.proxy.object_path
635
566
        del self.clients_dict[path]
636
 
        if not self.clients_dict:
637
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
638
 
            # is completely emptied, we need to recreate it.
639
 
            self.clients = urwid.SimpleListWalker([])
640
 
            self.rebuild()
641
567
        self.refresh()
642
 
    
 
568
 
643
569
    def refresh(self):
644
570
        """Redraw the screen"""
645
571
        canvas = self.topwidget.render(self.size, focus=True)
646
572
        self.screen.draw_screen(self.size, canvas)
647
 
    
 
573
 
648
574
    def run(self):
649
575
        """Start the main loop and exit when it's done."""
 
576
        log.addHandler(self.loghandler)
 
577
        self.orig_log_propagate = log.propagate
 
578
        log.propagate = False
 
579
        self.orig_log_level = log.level
 
580
        log.setLevel("INFO")
 
581
        self.bus = dbus.SystemBus()
 
582
        mandos_dbus_objc = self.bus.get_object(
 
583
            self.busname, "/", follow_name_owner_changes=True)
 
584
        self.mandos_serv = dbus.Interface(
 
585
            mandos_dbus_objc, dbus_interface=server_interface)
 
586
        try:
 
587
            mandos_clients = (self.mandos_serv
 
588
                              .GetAllClientsWithProperties())
 
589
            if not mandos_clients:
 
590
                log.warning("Note: Server has no clients.")
 
591
        except dbus.exceptions.DBusException:
 
592
            log.warning("Note: No Mandos server running.")
 
593
            mandos_clients = dbus.Dictionary()
 
594
 
 
595
        (self.mandos_serv
 
596
         .connect_to_signal("InterfacesRemoved",
 
597
                            self.find_and_remove_client,
 
598
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
599
                            byte_arrays=True))
 
600
        (self.mandos_serv
 
601
         .connect_to_signal("InterfacesAdded",
 
602
                            self.add_new_client,
 
603
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
 
604
                            byte_arrays=True))
 
605
        (self.mandos_serv
 
606
         .connect_to_signal("ClientNotFound",
 
607
                            self.client_not_found,
 
608
                            dbus_interface=server_interface,
 
609
                            byte_arrays=True))
 
610
        for path, client in mandos_clients.items():
 
611
            client_proxy_object = self.bus.get_object(self.busname,
 
612
                                                      path)
 
613
            self.add_client(MandosClientWidget(
 
614
                server_proxy_object=self.mandos_serv,
 
615
                proxy_object=client_proxy_object,
 
616
                properties=client,
 
617
                update_hook=self.refresh,
 
618
                delete_hook=self.remove_client),
 
619
                            path=path)
 
620
 
650
621
        self.refresh()
651
 
        self._input_callback_tag = (gobject.io_add_watch
652
 
                                    (sys.stdin.fileno(),
653
 
                                     gobject.IO_IN,
654
 
                                     self.process_input))
 
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)))
655
627
        self.main_loop.run()
656
628
        # Main loop has finished, we should close everything now
657
 
        gobject.source_remove(self._input_callback_tag)
658
 
        self.screen.stop()
659
 
    
 
629
        GLib.source_remove(self._input_callback_tag)
 
630
        with warnings.catch_warnings():
 
631
            warnings.simplefilter("ignore", BytesWarning)
 
632
            self.screen.stop()
 
633
 
660
634
    def stop(self):
661
635
        self.main_loop.quit()
662
 
    
 
636
        log.removeHandler(self.loghandler)
 
637
        log.propagate = self.orig_log_propagate
 
638
 
663
639
    def process_input(self, source, condition):
664
640
        keys = self.screen.get_input()
665
 
        translations = { "ctrl n": "down",      # Emacs
666
 
                         "ctrl p": "up",        # Emacs
667
 
                         "ctrl v": "page down", # Emacs
668
 
                         "meta v": "page up",   # Emacs
669
 
                         " ": "page down",      # less
670
 
                         "f": "page down",      # less
671
 
                         "b": "page up",        # less
672
 
                         "j": "down",           # vi
673
 
                         "k": "up",             # vi
674
 
                         }
 
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
                        }
675
651
        for key in keys:
676
652
            try:
677
653
                key = translations[key]
678
654
            except KeyError:    # :-)
679
655
                pass
680
 
            
 
656
 
681
657
            if key == "q" or key == "Q":
682
658
                self.stop()
683
659
                break
684
660
            elif key == "window resize":
685
661
                self.size = self.screen.get_cols_rows()
686
662
                self.refresh()
687
 
            elif key == "\f":  # Ctrl-L
 
663
            elif key == "ctrl l":
 
664
                self.screen.clear()
688
665
                self.refresh()
689
666
            elif key == "l" or key == "D":
690
667
                self.toggle_log_display()
696
673
                if not self.log_visible:
697
674
                    self.log_visible = True
698
675
                    self.rebuild()
699
 
                self.log_message_raw(("bold",
700
 
                                      "  ".
701
 
                                      join(("q: Quit",
702
 
                                            "?: Help",
703
 
                                            "l: Log window toggle",
704
 
                                            "TAB: Switch window",
705
 
                                            "w: Wrap (log)"))))
706
 
                self.log_message_raw(("bold",
707
 
                                      "  "
708
 
                                      .join(("Clients:",
709
 
                                             "+: Enable",
710
 
                                             "-: Disable",
711
 
                                             "R: Remove",
712
 
                                             "s: Start new checker",
713
 
                                             "S: Stop checker",
714
 
                                             "C: Checker OK",
715
 
                                             "a: Approve",
716
 
                                             "d: Deny"))))
 
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
                                   ))))
717
695
                self.refresh()
718
696
            elif key == "tab":
719
697
                if self.topwidget.get_focus() is self.logbox:
721
699
                else:
722
700
                    self.topwidget.set_focus(self.logbox)
723
701
                self.refresh()
724
 
            #elif (key == "end" or key == "meta >" or key == "G"
725
 
            #      or key == ">"):
726
 
            #    pass            # xxx end-of-buffer
727
 
            #elif (key == "home" or key == "meta <" or key == "g"
728
 
            #      or key == "<"):
729
 
            #    pass            # xxx beginning-of-buffer
730
 
            #elif key == "ctrl e" or key == "$":
731
 
            #    pass            # xxx move-end-of-line
732
 
            #elif key == "ctrl a" or key == "^":
733
 
            #    pass            # xxx move-beginning-of-line
734
 
            #elif key == "ctrl b" or key == "meta (" or key == "h":
735
 
            #    pass            # xxx left
736
 
            #elif key == "ctrl f" or key == "meta )" or key == "l":
737
 
            #    pass            # xxx right
738
 
            #elif key == "a":
739
 
            #    pass            # scroll up log
740
 
            #elif key == "z":
741
 
            #    pass            # scroll down log
 
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
742
727
            elif self.topwidget.selectable():
743
728
                self.topwidget.keypress(self.size, key)
744
729
                self.refresh()
745
730
        return True
746
731
 
 
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
 
747
746
ui = UserInterface()
748
747
try:
749
748
    ui.run()
750
749
except KeyboardInterrupt:
751
 
    ui.screen.stop()
752
 
except Exception, e:
753
 
    ui.log_message(unicode(e))
754
 
    ui.screen.stop()
 
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()
755
757
    raise