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  • Committer: Teddy Hogeborn
  • Date: 2009-11-09 05:10:35 UTC
  • Revision ID: teddy@fukt.bsnet.se-20091109051035-zcmvuhioo9gjs0cb
* mandos-monitor (MandosClientPropertyCache): Remove conversion of
                                              D-Bus types to native
                                              Python types.
  (MandosClientPropertyCache.type_map): Removed attribute.
  (MandosClientPropertyCache.conversion): Removed method.
  (ConstrainedListBox): New; a ListBox which will keep the focus.
  (UserInterface.__init__): Take new argument "max_log_length".
  (UserInterface.divider, UserInterface.log,
  UserInterface.max_log_length, UserInterface.logbox,
  UserInterface.log_visible, UserInterface.log_wrap): New attributes.
  (UserInterface.rebuild, UserInterface.log_message,
  UserInterface.toggle_log_display, UserInterface.change_log_display):
  New methods.
  (UserInterface.remove_client): Bug fix: Eliminate double client
                                 listing when an empty list gets a
                                 ClientAdded signal.
  (UserInterface.process_input): Add more key translations.

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mandos-monitor
1
 
#!/usr/bin/python3 -bbI
 
1
#!/usr/bin/python
2
2
# -*- mode: python; coding: utf-8 -*-
3
 
#
4
 
# Mandos Monitor - Control and monitor the Mandos server
5
 
#
6
 
# Copyright © 2009-2019 Teddy Hogeborn
7
 
# Copyright © 2009-2019 Björn Påhlsson
8
 
#
9
 
# This file is part of Mandos.
10
 
#
11
 
# Mandos is free software: you can redistribute it and/or modify it
12
 
# under the terms of the GNU General Public License as published by
13
 
# the Free Software Foundation, either version 3 of the License, or
14
 
# (at your option) any later version.
15
 
#
16
 
#     Mandos is distributed in the hope that it will be useful, but
17
 
#     WITHOUT ANY WARRANTY; without even the implied warranty of
18
 
#     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19
 
#     GNU General Public License for more details.
20
 
#
21
 
# You should have received a copy of the GNU General Public License
22
 
# along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
23
 
#
24
 
# Contact the authors at <mandos@recompile.se>.
25
 
#
26
3
 
27
 
from __future__ import (division, absolute_import, print_function,
28
 
                        unicode_literals)
29
 
try:
30
 
    from future_builtins import *
31
 
except ImportError:
32
 
    pass
 
4
from __future__ import division, absolute_import, with_statement
33
5
 
34
6
import sys
35
 
import os
36
 
import warnings
37
 
import datetime
38
 
import locale
39
 
import logging
 
7
import signal
40
8
 
41
9
import urwid.curses_display
42
10
import urwid
43
11
 
44
12
from dbus.mainloop.glib import DBusGMainLoop
45
 
from gi.repository import GLib
 
13
import gobject
46
14
 
47
15
import dbus
48
16
 
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)
 
17
import UserList
61
18
 
62
19
# Some useful constants
63
 
domain = "se.recompile"
64
 
server_interface = domain + ".Mandos"
65
 
client_interface = domain + ".Mandos.Client"
66
 
version = "1.8.9"
67
 
 
68
 
try:
69
 
    dbus.OBJECT_MANAGER_IFACE
70
 
except AttributeError:
71
 
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
72
 
 
73
 
 
74
 
def isoformat_to_datetime(iso):
75
 
    "Parse an ISO 8601 date string to a datetime.datetime()"
76
 
    if not iso:
77
 
        return None
78
 
    d, t = iso.split("T", 1)
79
 
    year, month, day = d.split("-", 2)
80
 
    hour, minute, second = t.split(":", 2)
81
 
    second, fraction = divmod(float(second), 1)
82
 
    return datetime.datetime(int(year),
83
 
                             int(month),
84
 
                             int(day),
85
 
                             int(hour),
86
 
                             int(minute),
87
 
                             int(second),            # Whole seconds
88
 
                             int(fraction*1000000))  # Microseconds
89
 
 
 
20
domain = 'se.bsnet.fukt'
 
21
server_interface = domain + '.Mandos'
 
22
client_interface = domain + '.Mandos.Client'
 
23
version = "1.0.14"
 
24
 
 
25
# Always run in monochrome mode
 
26
urwid.curses_display.curses.has_colors = lambda : False
 
27
 
 
28
# Urwid doesn't support blinking, but we want it.  Since we have no
 
29
# use for underline on its own, we make underline also always blink.
 
30
urwid.curses_display.curses.A_UNDERLINE |= (
 
31
    urwid.curses_display.curses.A_BLINK)
90
32
 
91
33
class MandosClientPropertyCache(object):
92
34
    """This wraps a Mandos Client D-Bus proxy object, caches the
93
35
    properties and calls a hook function when any of them are
94
36
    changed.
95
37
    """
96
 
    def __init__(self, proxy_object=None, properties=None, **kwargs):
97
 
        self.proxy = proxy_object  # Mandos Client proxy object
98
 
        self.properties = dict() if properties is None else properties
99
 
        self.property_changed_match = (
100
 
            self.proxy.connect_to_signal("PropertiesChanged",
101
 
                                         self.properties_changed,
102
 
                                         dbus.PROPERTIES_IFACE,
103
 
                                         byte_arrays=True))
104
 
 
105
 
        if properties is None:
106
 
            self.properties.update(self.proxy.GetAll(
107
 
                client_interface,
108
 
                dbus_interface=dbus.PROPERTIES_IFACE))
109
 
 
110
 
        super(MandosClientPropertyCache, self).__init__(**kwargs)
111
 
 
112
 
    def properties_changed(self, interface, properties, invalidated):
113
 
        """This is called whenever we get a PropertiesChanged signal
114
 
        It updates the changed properties in the "properties" dict.
 
38
    def __init__(self, proxy_object=None, properties=None, *args,
 
39
                 **kwargs):
 
40
        self.proxy = proxy_object # Mandos Client proxy object
 
41
        
 
42
        if properties is None:
 
43
            self.properties = dict()
 
44
        else:
 
45
            self.properties = properties
 
46
        self.proxy.connect_to_signal("PropertyChanged",
 
47
                                     self.property_changed,
 
48
                                     client_interface,
 
49
                                     byte_arrays=True)
 
50
        
 
51
        if properties is None:
 
52
            self.properties.update(self.proxy.GetAll(client_interface,
 
53
                                                     dbus_interface =
 
54
                                                     dbus.PROPERTIES_IFACE))
 
55
        super(MandosClientPropertyCache, self).__init__(
 
56
            proxy_object=proxy_object,
 
57
            properties=properties, *args, **kwargs)
 
58
    
 
59
    def property_changed(self, property=None, value=None):
 
60
        """This is called whenever we get a PropertyChanged signal
 
61
        It updates the changed property in the "properties" dict.
115
62
        """
116
63
        # Update properties dict with new value
117
 
        if interface == client_interface:
118
 
            self.properties.update(properties)
119
 
 
120
 
    def delete(self):
121
 
        self.property_changed_match.remove()
 
64
        self.properties[property] = value
122
65
 
123
66
 
124
67
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
125
68
    """A Mandos Client which is visible on the screen.
126
69
    """
127
 
 
 
70
    
128
71
    def __init__(self, server_proxy_object=None, update_hook=None,
129
 
                 delete_hook=None, **kwargs):
 
72
                 delete_hook=None, *args, **kwargs):
130
73
        # Called on update
131
74
        self.update_hook = update_hook
132
75
        # Called on delete
133
76
        self.delete_hook = delete_hook
134
77
        # Mandos Server proxy object
135
78
        self.server_proxy_object = server_proxy_object
136
 
 
137
 
        self._update_timer_callback_tag = None
138
 
 
 
79
        
139
80
        # The widget shown normally
140
81
        self._text_widget = urwid.Text("")
141
82
        # The widget shown when we have focus
142
83
        self._focus_text_widget = urwid.Text("")
143
 
        super(MandosClientWidget, self).__init__(**kwargs)
 
84
        super(MandosClientWidget, self).__init__(
 
85
            update_hook=update_hook, delete_hook=delete_hook,
 
86
            *args, **kwargs)
144
87
        self.update()
145
88
        self.opened = False
146
 
 
147
 
        self.match_objects = (
148
 
            self.proxy.connect_to_signal("CheckerCompleted",
149
 
                                         self.checker_completed,
150
 
                                         client_interface,
151
 
                                         byte_arrays=True),
152
 
            self.proxy.connect_to_signal("CheckerStarted",
153
 
                                         self.checker_started,
154
 
                                         client_interface,
155
 
                                         byte_arrays=True),
156
 
            self.proxy.connect_to_signal("GotSecret",
157
 
                                         self.got_secret,
158
 
                                         client_interface,
159
 
                                         byte_arrays=True),
160
 
            self.proxy.connect_to_signal("NeedApproval",
161
 
                                         self.need_approval,
162
 
                                         client_interface,
163
 
                                         byte_arrays=True),
164
 
            self.proxy.connect_to_signal("Rejected",
165
 
                                         self.rejected,
166
 
                                         client_interface,
167
 
                                         byte_arrays=True))
168
 
        log.debug("Created client %s", self.properties["Name"])
169
 
 
170
 
    def using_timer(self, flag):
171
 
        """Call this method with True or False when timer should be
172
 
        activated or deactivated.
173
 
        """
174
 
        if flag and self._update_timer_callback_tag is None:
175
 
            # Will update the shown timer value every second
176
 
            self._update_timer_callback_tag = (
177
 
                GLib.timeout_add(1000,
178
 
                                 glib_safely(self.update_timer)))
179
 
        elif not (flag or self._update_timer_callback_tag is None):
180
 
            GLib.source_remove(self._update_timer_callback_tag)
181
 
            self._update_timer_callback_tag = None
182
 
 
183
 
    def checker_completed(self, exitstatus, condition, command):
184
 
        if exitstatus == 0:
185
 
            log.debug('Checker for client %s (command "%s")'
186
 
                      " succeeded", self.properties["Name"], command)
187
 
            self.update()
188
 
            return
189
 
        # Checker failed
190
 
        if os.WIFEXITED(condition):
191
 
            log.info('Checker for client %s (command "%s") failed'
192
 
                     " with exit code %d", self.properties["Name"],
193
 
                     command, os.WEXITSTATUS(condition))
194
 
        elif os.WIFSIGNALED(condition):
195
 
            log.info('Checker for client %s (command "%s") was'
196
 
                     " killed by signal %d", self.properties["Name"],
197
 
                     command, os.WTERMSIG(condition))
198
 
        self.update()
199
 
 
200
 
    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
 
 
205
 
    def got_secret(self):
206
 
        log.info("Client %s received its secret",
207
 
                 self.properties["Name"])
208
 
 
209
 
    def need_approval(self, timeout, default):
210
 
        if not default:
211
 
            message = "Client %s needs approval within %f seconds"
212
 
        else:
213
 
            message = "Client %s will get its secret in %f seconds"
214
 
        log.info(message, self.properties["Name"], timeout/1000)
215
 
 
216
 
    def rejected(self, reason):
217
 
        log.info("Client %s was rejected; reason: %s",
218
 
                 self.properties["Name"], reason)
219
 
 
 
89
    
220
90
    def selectable(self):
221
91
        """Make this a "selectable" widget.
222
92
        This overrides the method from urwid.FlowWidget."""
223
93
        return True
224
 
 
225
 
    def rows(self, maxcolrow, focus=False):
 
94
    
 
95
    def rows(self, (maxcol,), focus=False):
226
96
        """How many rows this widget will occupy might depend on
227
97
        whether we have focus or not.
228
98
        This overrides the method from urwid.FlowWidget"""
229
 
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
230
 
 
 
99
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
100
    
231
101
    def current_widget(self, focus=False):
232
102
        if focus or self.opened:
233
103
            return self._focus_widget
234
104
        return self._widget
235
 
 
 
105
    
236
106
    def update(self):
237
107
        "Called when what is visible on the screen should be updated."
238
108
        # How to add standout mode to a style
239
 
        with_standout = {"normal": "standout",
240
 
                         "bold": "bold-standout",
241
 
                         "underline-blink":
242
 
                         "underline-blink-standout",
243
 
                         "bold-underline-blink":
244
 
                         "bold-underline-blink-standout",
245
 
                         }
246
 
 
 
109
        with_standout = { u"normal": u"standout",
 
110
                          u"bold": u"bold-standout",
 
111
                          u"underline-blink":
 
112
                              u"underline-blink-standout",
 
113
                          u"bold-underline-blink":
 
114
                              u"bold-underline-blink-standout",
 
115
                          }
 
116
        
247
117
        # Rebuild focus and non-focus widgets using current properties
248
 
 
249
 
        # Base part of a client. Name!
250
 
        base = "{name}: ".format(name=self.properties["Name"])
251
 
        if not self.properties["Enabled"]:
252
 
            message = "DISABLED"
253
 
            self.using_timer(False)
254
 
        elif self.properties["ApprovalPending"]:
255
 
            timeout = datetime.timedelta(
256
 
                milliseconds=self.properties["ApprovalDelay"])
257
 
            last_approval_request = isoformat_to_datetime(
258
 
                self.properties["LastApprovalRequest"])
259
 
            if last_approval_request is not None:
260
 
                timer = max(timeout - (datetime.datetime.utcnow()
261
 
                                       - last_approval_request),
262
 
                            datetime.timedelta())
263
 
            else:
264
 
                timer = datetime.timedelta()
265
 
            if self.properties["ApprovedByDefault"]:
266
 
                message = "Approval in {}. (d)eny?"
267
 
            else:
268
 
                message = "Denial in {}. (a)pprove?"
269
 
            message = message.format(str(timer).rsplit(".", 1)[0])
270
 
            self.using_timer(True)
271
 
        elif self.properties["LastCheckerStatus"] != 0:
272
 
            # When checker has failed, show timer until client expires
273
 
            expires = self.properties["Expires"]
274
 
            if expires == "":
275
 
                timer = datetime.timedelta(0)
276
 
            else:
277
 
                expires = (datetime.datetime.strptime
278
 
                           (expires, "%Y-%m-%dT%H:%M:%S.%f"))
279
 
                timer = max(expires - datetime.datetime.utcnow(),
280
 
                            datetime.timedelta())
281
 
            message = ("A checker has failed! Time until client"
282
 
                       " gets disabled: {}"
283
 
                       .format(str(timer).rsplit(".", 1)[0]))
284
 
            self.using_timer(True)
285
 
        else:
286
 
            message = "enabled"
287
 
            self.using_timer(False)
288
 
        self._text = "{}{}".format(base, message)
289
 
 
 
118
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
 
119
                      % self.properties)
290
120
        if not urwid.supports_unicode():
291
121
            self._text = self._text.encode("ascii", "replace")
292
 
        textlist = [("normal", self._text)]
 
122
        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
293
123
        self._text_widget.set_text(textlist)
294
124
        self._focus_text_widget.set_text([(with_standout[text[0]],
295
125
                                           text[1])
302
132
        # Run update hook, if any
303
133
        if self.update_hook is not None:
304
134
            self.update_hook()
305
 
 
306
 
    def update_timer(self):
307
 
        """called by GLib. Will indefinitely loop until
308
 
        GLib.source_remove() on tag is called
309
 
        """
310
 
        self.update()
311
 
        return True             # Keep calling this
312
 
 
313
 
    def delete(self, **kwargs):
314
 
        if self._update_timer_callback_tag is not None:
315
 
            GLib.source_remove(self._update_timer_callback_tag)
316
 
            self._update_timer_callback_tag = None
317
 
        for match in self.match_objects:
318
 
            match.remove()
319
 
        self.match_objects = ()
 
135
    
 
136
    def delete(self):
320
137
        if self.delete_hook is not None:
321
138
            self.delete_hook(self)
322
 
        return super(MandosClientWidget, self).delete(**kwargs)
323
 
 
324
 
    def render(self, maxcolrow, focus=False):
 
139
    
 
140
    def render(self, (maxcol,), focus=False):
325
141
        """Render differently if we have focus.
326
142
        This overrides the method from urwid.FlowWidget"""
327
 
        return self.current_widget(focus).render(maxcolrow,
 
143
        return self.current_widget(focus).render((maxcol,),
328
144
                                                 focus=focus)
329
 
 
330
 
    def keypress(self, maxcolrow, key):
 
145
    
 
146
    def keypress(self, (maxcol,), key):
331
147
        """Handle keys.
332
148
        This overrides the method from urwid.FlowWidget"""
333
 
        if key == "+":
334
 
            self.proxy.Set(client_interface, "Enabled",
335
 
                           dbus.Boolean(True), ignore_reply=True,
336
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
337
 
        elif key == "-":
338
 
            self.proxy.Set(client_interface, "Enabled", False,
339
 
                           ignore_reply=True,
340
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
341
 
        elif key == "a":
342
 
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
343
 
                               dbus_interface=client_interface,
344
 
                               ignore_reply=True)
345
 
        elif key == "d":
346
 
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
347
 
                               dbus_interface=client_interface,
348
 
                               ignore_reply=True)
349
 
        elif key == "R" or key == "_" or key == "ctrl k":
 
149
        if key == u"e" or key == u"+":
 
150
            self.proxy.Enable()
 
151
        elif key == u"d" or key == u"-":
 
152
            self.proxy.Disable()
 
153
        elif key == u"r" or key == u"_":
350
154
            self.server_proxy_object.RemoveClient(self.proxy
351
 
                                                  .object_path,
352
 
                                                  ignore_reply=True)
353
 
        elif key == "s":
354
 
            self.proxy.Set(client_interface, "CheckerRunning",
355
 
                           dbus.Boolean(True), ignore_reply=True,
356
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
357
 
        elif key == "S":
358
 
            self.proxy.Set(client_interface, "CheckerRunning",
359
 
                           dbus.Boolean(False), ignore_reply=True,
360
 
                           dbus_interface=dbus.PROPERTIES_IFACE)
361
 
        elif key == "C":
362
 
            self.proxy.CheckedOK(dbus_interface=client_interface,
363
 
                                 ignore_reply=True)
 
155
                                                  .object_path)
 
156
        elif key == u"s":
 
157
            self.proxy.StartChecker()
 
158
        elif key == u"c":
 
159
            self.proxy.StopChecker()
 
160
        elif key == u"S":
 
161
            self.proxy.CheckedOK()
364
162
        # xxx
365
 
#         elif key == "p" or key == "=":
 
163
#         elif key == u"p" or key == "=":
366
164
#             self.proxy.pause()
367
 
#         elif key == "u" or key == ":":
 
165
#         elif key == u"u" or key == ":":
368
166
#             self.proxy.unpause()
369
 
#         elif key == "RET":
 
167
#         elif key == u"RET":
370
168
#             self.open()
371
169
        else:
372
170
            return key
373
 
 
374
 
    def properties_changed(self, interface, properties, invalidated):
375
 
        """Call self.update() if any properties changed.
 
171
    
 
172
    def property_changed(self, property=None, value=None,
 
173
                         *args, **kwargs):
 
174
        """Call self.update() if old value is not new value.
376
175
        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):
 
176
        property_name = unicode(property)
 
177
        old_value = self.properties.get(property_name)
 
178
        super(MandosClientWidget, self).property_changed(
 
179
            property=property, value=value, *args, **kwargs)
 
180
        if self.properties.get(property_name) != old_value:
383
181
            self.update()
384
182
 
385
183
 
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
184
class ConstrainedListBox(urwid.ListBox):
397
185
    """Like a normal urwid.ListBox, but will consume all "up" or
398
186
    "down" key presses, thus not allowing any containing widgets to
399
187
    use them as an excuse to shift focus away from this widget.
400
188
    """
401
 
    def keypress(self, *args, **kwargs):
402
 
        ret = (super(ConstrainedListBox, self)
403
 
               .keypress(*args, **kwargs))
404
 
        if ret in ("up", "down"):
 
189
    def keypress(self, (maxcol, maxrow), key):
 
190
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
 
191
        if ret in (u"up", u"down"):
405
192
            return
406
193
        return ret
407
194
 
412
199
    """
413
200
    def __init__(self, max_log_length=1000):
414
201
        DBusGMainLoop(set_as_default=True)
415
 
 
 
202
        
416
203
        self.screen = urwid.curses_display.Screen()
417
 
 
 
204
        
418
205
        self.screen.register_palette((
419
 
                ("normal",
420
 
                 "default", "default", None),
421
 
                ("bold",
422
 
                 "bold", "default", "bold"),
423
 
                ("underline-blink",
424
 
                 "underline,blink", "default", "underline,blink"),
425
 
                ("standout",
426
 
                 "standout", "default", "standout"),
427
 
                ("bold-underline-blink",
428
 
                 "bold,underline,blink", "default",
429
 
                 "bold,underline,blink"),
430
 
                ("bold-standout",
431
 
                 "bold,standout", "default", "bold,standout"),
432
 
                ("underline-blink-standout",
433
 
                 "underline,blink,standout", "default",
434
 
                 "underline,blink,standout"),
435
 
                ("bold-underline-blink-standout",
436
 
                 "bold,underline,blink,standout", "default",
437
 
                 "bold,underline,blink,standout"),
 
206
                (u"normal",
 
207
                 u"default", u"default", None),
 
208
                (u"bold",
 
209
                 u"default", u"default", u"bold"),
 
210
                (u"underline-blink",
 
211
                 u"default", u"default", u"underline"),
 
212
                (u"standout",
 
213
                 u"default", u"default", u"standout"),
 
214
                (u"bold-underline-blink",
 
215
                 u"default", u"default", (u"bold", u"underline")),
 
216
                (u"bold-standout",
 
217
                 u"default", u"default", (u"bold", u"standout")),
 
218
                (u"underline-blink-standout",
 
219
                 u"default", u"default", (u"underline", u"standout")),
 
220
                (u"bold-underline-blink-standout",
 
221
                 u"default", u"default", (u"bold", u"underline",
 
222
                                          u"standout")),
438
223
                ))
439
 
 
 
224
        
440
225
        if urwid.supports_unicode():
441
 
            self.divider = "─"  # \u2500
 
226
            #self.divider = u"─" # \u2500
 
227
            self.divider = u"━" # \u2501
442
228
        else:
443
 
            self.divider = "_"  # \u005f
444
 
 
 
229
            #self.divider = u"-" # \u002d
 
230
            self.divider = u"_" # \u005f
 
231
        
445
232
        self.screen.start()
446
 
 
 
233
        
447
234
        self.size = self.screen.get_cols_rows()
448
 
 
 
235
        
449
236
        self.clients = urwid.SimpleListWalker([])
450
237
        self.clients_dict = {}
451
 
 
 
238
        
452
239
        # We will add Text widgets to this list
453
 
        self.log = urwid.SimpleListWalker([])
 
240
        self.log = []
454
241
        self.max_log_length = max_log_length
455
 
 
 
242
        
456
243
        # We keep a reference to the log widget so we can remove it
457
244
        # from the ListWalker without it getting destroyed
458
245
        self.logbox = ConstrainedListBox(self.log)
459
 
 
 
246
        
460
247
        # This keeps track of whether self.uilist currently has
461
248
        # self.logbox in it or not
462
249
        self.log_visible = True
463
 
        self.log_wrap = "any"
464
 
 
465
 
        self.loghandler = UILogHandler(self)
466
 
 
 
250
        self.log_wrap = u"any"
 
251
        
467
252
        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
 
 
 
253
        self.log_message(u"Message")
 
254
        self.log_message(u"Message0 Message1 Message2 Message3 Message4 Message5 Message6 Message7 Message8 Message9")
 
255
        self.log_message(u"Message10 Message11 Message12 Message13 Message14 Message15 Message16 Message17 Message18 Message19")
 
256
        self.log_message(u"Message20 Message21 Message22 Message23 Message24 Message25 Message26 Message27 Message28 Message29")
 
257
        
 
258
        self.busname = domain + '.Mandos'
 
259
        self.main_loop = gobject.MainLoop()
 
260
        self.bus = dbus.SystemBus()
 
261
        mandos_dbus_objc = self.bus.get_object(
 
262
            self.busname, u"/", follow_name_owner_changes=True)
 
263
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
264
                                          dbus_interface
 
265
                                          = server_interface)
 
266
        try:
 
267
            mandos_clients = (self.mandos_serv
 
268
                              .GetAllClientsWithProperties())
 
269
        except dbus.exceptions.DBusException:
 
270
            mandos_clients = dbus.Dictionary()
 
271
        
 
272
        (self.mandos_serv
 
273
         .connect_to_signal("ClientRemoved",
 
274
                            self.find_and_remove_client,
 
275
                            dbus_interface=server_interface,
 
276
                            byte_arrays=True))
 
277
        (self.mandos_serv
 
278
         .connect_to_signal("ClientAdded",
 
279
                            self.add_new_client,
 
280
                            dbus_interface=server_interface,
 
281
                            byte_arrays=True))
 
282
        for path, client in mandos_clients.iteritems():
 
283
            client_proxy_object = self.bus.get_object(self.busname,
 
284
                                                      path)
 
285
            self.add_client(MandosClientWidget(server_proxy_object
 
286
                                               =self.mandos_serv,
 
287
                                               proxy_object
 
288
                                               =client_proxy_object,
 
289
                                               properties=client,
 
290
                                               update_hook
 
291
                                               =self.refresh,
 
292
                                               delete_hook
 
293
                                               =self.remove_client),
 
294
                            path=path)
 
295
    
479
296
    def rebuild(self):
480
297
        """This rebuilds the User Interface.
481
298
        Call this when the widget layout needs to change"""
482
299
        self.uilist = []
483
 
        # self.uilist.append(urwid.ListBox(self.clients))
484
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
485
 
                                                          clients),
486
 
                                       # header=urwid.Divider(),
 
300
        #self.uilist.append(urwid.ListBox(self.clients))
 
301
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
 
302
                                       #header=urwid.Divider(),
487
303
                                       header=None,
488
 
                                       footer=urwid.Divider(
489
 
                                           div_char=self.divider)))
 
304
                                       footer=urwid.Divider(div_char=self.divider)))
490
305
        if self.log_visible:
491
306
            self.uilist.append(self.logbox)
 
307
            pass
492
308
        self.topwidget = urwid.Pile(self.uilist)
493
 
 
494
 
    def add_log_line(self, markup):
 
309
    
 
310
    def log_message(self, markup):
 
311
        """Add a log message to the log buffer."""
495
312
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
496
 
        if self.max_log_length:
497
 
            if len(self.log) > self.max_log_length:
498
 
                del self.log[0:(len(self.log) - self.max_log_length)]
499
 
        self.logbox.set_focus(len(self.logbox.body.contents)-1,
500
 
                              coming_from="above")
501
 
        self.refresh()
502
 
 
 
313
        if (self.max_log_length
 
314
            and len(self.log) > self.max_log_length):
 
315
            del self.log[0:len(self.log)-self.max_log_length-1]
 
316
    
503
317
    def toggle_log_display(self):
504
318
        """Toggle visibility of the log buffer."""
505
319
        self.log_visible = not self.log_visible
506
320
        self.rebuild()
507
 
        log.debug("Log visibility changed to: %s", self.log_visible)
508
 
 
 
321
        self.log_message(u"Log visibility changed to: "
 
322
                         + unicode(self.log_visible))
 
323
    
509
324
    def change_log_display(self):
510
325
        """Change type of log display.
511
326
        Currently, this toggles wrapping of text lines."""
512
 
        if self.log_wrap == "clip":
513
 
            self.log_wrap = "any"
 
327
        if self.log_wrap == u"clip":
 
328
            self.log_wrap = u"any"
514
329
        else:
515
 
            self.log_wrap = "clip"
 
330
            self.log_wrap = u"clip"
516
331
        for textwidget in self.log:
517
332
            textwidget.set_wrap_mode(self.log_wrap)
518
 
        log.debug("Wrap mode: %s", self.log_wrap)
519
 
 
520
 
    def find_and_remove_client(self, path, interfaces):
521
 
        """Find a client by its object path and remove it.
522
 
 
523
 
        This is connected to the InterfacesRemoved signal from the
 
333
        self.log_message(u"Wrap mode: " + self.log_wrap)
 
334
    
 
335
    def find_and_remove_client(self, path, name):
 
336
        """Find an client from its object path and remove it.
 
337
        
 
338
        This is connected to the ClientRemoved signal from the
524
339
        Mandos server object."""
525
 
        if client_interface not in interfaces:
526
 
            # Not a Mandos client object; ignore
527
 
            return
528
340
        try:
529
341
            client = self.clients_dict[path]
530
342
        except KeyError:
531
343
            # not found?
532
 
            log.warning("Unknown client %s removed", path)
533
 
            return
534
 
        client.delete()
535
 
 
536
 
    def add_new_client(self, path, ifs_and_props):
537
 
        """Find a client by its object path and remove it.
538
 
 
539
 
        This is connected to the InterfacesAdded signal from the
540
 
        Mandos server object.
541
 
        """
542
 
        if client_interface not in ifs_and_props:
543
 
            # Not a Mandos client object; ignore
544
 
            return
 
344
            return
 
345
        self.remove_client(client, path)
 
346
    
 
347
    def add_new_client(self, path, properties):
545
348
        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])),
 
349
        self.add_client(MandosClientWidget(server_proxy_object
 
350
                                           =self.mandos_serv,
 
351
                                           proxy_object
 
352
                                           =client_proxy_object,
 
353
                                           properties=properties,
 
354
                                           update_hook
 
355
                                           =self.refresh,
 
356
                                           delete_hook
 
357
                                           =self.remove_client),
552
358
                        path=path)
553
 
 
 
359
    
554
360
    def add_client(self, client, path=None):
555
361
        self.clients.append(client)
556
362
        if path is None:
557
363
            path = client.proxy.object_path
558
364
        self.clients_dict[path] = client
559
 
        self.clients.sort(key=lambda c: c.properties["Name"])
 
365
        self.clients.sort(None, lambda c: c.properties[u"name"])
560
366
        self.refresh()
561
 
 
 
367
    
562
368
    def remove_client(self, client, path=None):
563
369
        self.clients.remove(client)
564
370
        if path is None:
565
371
            path = client.proxy.object_path
566
372
        del self.clients_dict[path]
 
373
        if not self.clients_dict:
 
374
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
 
375
            # is completely emptied, we need to recreate it.
 
376
            self.clients = urwid.SimpleListWalker([])
 
377
            self.rebuild()
567
378
        self.refresh()
568
 
 
 
379
    
569
380
    def refresh(self):
570
381
        """Redraw the screen"""
571
382
        canvas = self.topwidget.render(self.size, focus=True)
572
383
        self.screen.draw_screen(self.size, canvas)
573
 
 
 
384
    
574
385
    def run(self):
575
386
        """Start the main loop and exit when it's done."""
576
 
        log.addHandler(self.loghandler)
577
 
        self.orig_log_propagate = log.propagate
578
 
        log.propagate = False
579
 
        self.orig_log_level = log.level
580
 
        log.setLevel("INFO")
581
 
        self.bus = dbus.SystemBus()
582
 
        mandos_dbus_objc = self.bus.get_object(
583
 
            self.busname, "/", follow_name_owner_changes=True)
584
 
        self.mandos_serv = dbus.Interface(
585
 
            mandos_dbus_objc, dbus_interface=server_interface)
586
 
        try:
587
 
            mandos_clients = (self.mandos_serv
588
 
                              .GetAllClientsWithProperties())
589
 
            if not mandos_clients:
590
 
                log.warning("Note: Server has no clients.")
591
 
        except dbus.exceptions.DBusException:
592
 
            log.warning("Note: No Mandos server running.")
593
 
            mandos_clients = dbus.Dictionary()
594
 
 
595
 
        (self.mandos_serv
596
 
         .connect_to_signal("InterfacesRemoved",
597
 
                            self.find_and_remove_client,
598
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
599
 
                            byte_arrays=True))
600
 
        (self.mandos_serv
601
 
         .connect_to_signal("InterfacesAdded",
602
 
                            self.add_new_client,
603
 
                            dbus_interface=dbus.OBJECT_MANAGER_IFACE,
604
 
                            byte_arrays=True))
605
 
        (self.mandos_serv
606
 
         .connect_to_signal("ClientNotFound",
607
 
                            self.client_not_found,
608
 
                            dbus_interface=server_interface,
609
 
                            byte_arrays=True))
610
 
        for path, client in mandos_clients.items():
611
 
            client_proxy_object = self.bus.get_object(self.busname,
612
 
                                                      path)
613
 
            self.add_client(MandosClientWidget(
614
 
                server_proxy_object=self.mandos_serv,
615
 
                proxy_object=client_proxy_object,
616
 
                properties=client,
617
 
                update_hook=self.refresh,
618
 
                delete_hook=self.remove_client),
619
 
                            path=path)
620
 
 
621
387
        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)))
 
388
        self._input_callback_tag = (gobject.io_add_watch
 
389
                                    (sys.stdin.fileno(),
 
390
                                     gobject.IO_IN,
 
391
                                     self.process_input))
627
392
        self.main_loop.run()
628
393
        # 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
 
 
 
394
        gobject.source_remove(self._input_callback_tag)
 
395
        self.screen.stop()
 
396
    
634
397
    def stop(self):
635
398
        self.main_loop.quit()
636
 
        log.removeHandler(self.loghandler)
637
 
        log.propagate = self.orig_log_propagate
638
 
 
 
399
    
639
400
    def process_input(self, source, condition):
640
401
        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
 
                        }
 
402
        translations = { u"ctrl n": u"down",      # Emacs
 
403
                         u"ctrl p": u"up",        # Emacs
 
404
                         u"ctrl v": u"page down", # Emacs
 
405
                         u"meta v": u"page up",   # Emacs
 
406
                         u" ": u"page down",      # less
 
407
                         u"f": u"page down",      # less
 
408
                         u"b": u"page up",        # less
 
409
                         u"j": u"down",           # vi
 
410
                         u"k": u"up",             # vi
 
411
                         }
651
412
        for key in keys:
652
413
            try:
653
414
                key = translations[key]
654
415
            except KeyError:    # :-)
655
416
                pass
656
 
 
657
 
            if key == "q" or key == "Q":
 
417
            
 
418
            if key == u"q" or key == u"Q":
658
419
                self.stop()
659
420
                break
660
 
            elif key == "window resize":
 
421
            elif key == u"window resize":
661
422
                self.size = self.screen.get_cols_rows()
662
423
                self.refresh()
663
 
            elif key == "ctrl l":
664
 
                self.screen.clear()
 
424
            elif key == u"\f":  # Ctrl-L
665
425
                self.refresh()
666
 
            elif key == "l" or key == "D":
 
426
            elif key == u"l" or key == u"D":
667
427
                self.toggle_log_display()
668
428
                self.refresh()
669
 
            elif key == "w" or key == "i":
 
429
            elif key == u"w" or key == u"i":
670
430
                self.change_log_display()
671
431
                self.refresh()
672
 
            elif key == "?" or key == "f1" or key == "esc":
673
 
                if not self.log_visible:
674
 
                    self.log_visible = True
675
 
                    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
 
                                   ))))
 
432
            elif key == u"?" or key == u"f1":
 
433
                self.log_message(u"Help!")
695
434
                self.refresh()
696
 
            elif key == "tab":
 
435
            elif key == u"tab":
697
436
                if self.topwidget.get_focus() is self.logbox:
698
437
                    self.topwidget.set_focus(0)
699
438
                else:
700
439
                    self.topwidget.set_focus(self.logbox)
701
440
                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
 
441
            elif (key == u"end" or key == u"meta >" or key == u"G"
 
442
                  or key == u">"):
 
443
                pass            # xxx end-of-buffer
 
444
            elif (key == u"home" or key == u"meta <" or key == u"g"
 
445
                  or key == u"<"):
 
446
                pass            # xxx beginning-of-buffer
 
447
            elif key == u"ctrl e" or key == u"$":
 
448
                pass            # xxx move-end-of-line
 
449
            elif key == u"ctrl a" or key == u"^":
 
450
                pass            # xxx move-beginning-of-line
 
451
            elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
452
                pass            # xxx left
 
453
            elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
454
                pass            # xxx right
 
455
            elif key == u"a":
 
456
                pass            # scroll up log
 
457
            elif key == u"z":
 
458
                pass            # scroll down log
727
459
            elif self.topwidget.selectable():
728
460
                self.topwidget.keypress(self.size, key)
729
461
                self.refresh()
730
462
        return True
731
463
 
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
464
ui = UserInterface()
747
465
try:
748
466
    ui.run()
749
 
except KeyboardInterrupt:
750
 
    with warnings.catch_warnings():
751
 
        warnings.filterwarnings("ignore", "", BytesWarning)
752
 
        ui.screen.stop()
753
 
except Exception:
754
 
    with warnings.catch_warnings():
755
 
        warnings.filterwarnings("ignore", "", BytesWarning)
756
 
        ui.screen.stop()
 
467
except:
 
468
    ui.screen.stop()
757
469
    raise