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  • Committer: Teddy Hogeborn
  • Date: 2019-11-03 19:17:57 UTC
  • Revision ID: teddy@recompile.se-20191103191757-1hdpp0u5fxa8iumo
INSTALL: Add "-" argument to "su" invocations.

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1
 
#!/usr/bin/python
 
1
#!/usr/bin/python3 -bbI
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
#
3
26
 
4
 
from __future__ import division, absolute_import, with_statement
 
27
from __future__ import (division, absolute_import, print_function,
 
28
                        unicode_literals)
 
29
try:
 
30
    from future_builtins import *
 
31
except ImportError:
 
32
    pass
5
33
 
6
34
import sys
7
 
import signal
 
35
import os
 
36
import warnings
 
37
import datetime
 
38
import locale
 
39
import logging
8
40
 
9
41
import urwid.curses_display
10
42
import urwid
11
43
 
12
44
from dbus.mainloop.glib import DBusGMainLoop
13
 
import gobject
 
45
from gi.repository import GLib
14
46
 
15
47
import dbus
16
48
 
17
 
import UserList
 
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)
18
61
 
19
62
# Some useful constants
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)
 
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
 
32
90
 
33
91
class MandosClientPropertyCache(object):
34
92
    """This wraps a Mandos Client D-Bus proxy object, caches the
35
93
    properties and calls a hook function when any of them are
36
94
    changed.
37
95
    """
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.
 
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.
62
115
        """
63
116
        # Update properties dict with new value
64
 
        self.properties[property] = value
 
117
        if interface == client_interface:
 
118
            self.properties.update(properties)
 
119
 
 
120
    def delete(self):
 
121
        self.property_changed_match.remove()
65
122
 
66
123
 
67
124
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
68
125
    """A Mandos Client which is visible on the screen.
69
126
    """
70
 
    
 
127
 
71
128
    def __init__(self, server_proxy_object=None, update_hook=None,
72
 
                 delete_hook=None, *args, **kwargs):
 
129
                 delete_hook=None, **kwargs):
73
130
        # Called on update
74
131
        self.update_hook = update_hook
75
132
        # Called on delete
76
133
        self.delete_hook = delete_hook
77
134
        # Mandos Server proxy object
78
135
        self.server_proxy_object = server_proxy_object
79
 
        
 
136
 
 
137
        self._update_timer_callback_tag = None
 
138
 
80
139
        # The widget shown normally
81
140
        self._text_widget = urwid.Text("")
82
141
        # The widget shown when we have focus
83
142
        self._focus_text_widget = urwid.Text("")
84
 
        super(MandosClientWidget, self).__init__(
85
 
            update_hook=update_hook, delete_hook=delete_hook,
86
 
            *args, **kwargs)
 
143
        super(MandosClientWidget, self).__init__(**kwargs)
87
144
        self.update()
88
145
        self.opened = False
89
 
    
 
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
 
90
220
    def selectable(self):
91
221
        """Make this a "selectable" widget.
92
222
        This overrides the method from urwid.FlowWidget."""
93
223
        return True
94
 
    
95
 
    def rows(self, (maxcol,), focus=False):
 
224
 
 
225
    def rows(self, maxcolrow, focus=False):
96
226
        """How many rows this widget will occupy might depend on
97
227
        whether we have focus or not.
98
228
        This overrides the method from urwid.FlowWidget"""
99
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
100
 
    
 
229
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
 
230
 
101
231
    def current_widget(self, focus=False):
102
232
        if focus or self.opened:
103
233
            return self._focus_widget
104
234
        return self._widget
105
 
    
 
235
 
106
236
    def update(self):
107
237
        "Called when what is visible on the screen should be updated."
108
238
        # How to add standout mode to a style
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
 
        
 
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
 
117
247
        # Rebuild focus and non-focus widgets using current properties
118
 
        self._text = (u'name="%(name)s", enabled=%(enabled)s'
119
 
                      % self.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
 
120
290
        if not urwid.supports_unicode():
121
291
            self._text = self._text.encode("ascii", "replace")
122
 
        textlist = [(u"normal", u"BLARGH: "), (u"bold", self._text)]
 
292
        textlist = [("normal", self._text)]
123
293
        self._text_widget.set_text(textlist)
124
294
        self._focus_text_widget.set_text([(with_standout[text[0]],
125
295
                                           text[1])
132
302
        # Run update hook, if any
133
303
        if self.update_hook is not None:
134
304
            self.update_hook()
135
 
    
136
 
    def delete(self):
 
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 = ()
137
320
        if self.delete_hook is not None:
138
321
            self.delete_hook(self)
139
 
    
140
 
    def render(self, (maxcol,), focus=False):
 
322
        return super(MandosClientWidget, self).delete(**kwargs)
 
323
 
 
324
    def render(self, maxcolrow, focus=False):
141
325
        """Render differently if we have focus.
142
326
        This overrides the method from urwid.FlowWidget"""
143
 
        return self.current_widget(focus).render((maxcol,),
 
327
        return self.current_widget(focus).render(maxcolrow,
144
328
                                                 focus=focus)
145
 
    
146
 
    def keypress(self, (maxcol,), key):
 
329
 
 
330
    def keypress(self, maxcolrow, key):
147
331
        """Handle keys.
148
332
        This overrides the method from urwid.FlowWidget"""
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"_":
 
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":
154
350
            self.server_proxy_object.RemoveClient(self.proxy
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()
 
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)
162
364
        # xxx
163
 
#         elif key == u"p" or key == "=":
 
365
#         elif key == "p" or key == "=":
164
366
#             self.proxy.pause()
165
 
#         elif key == u"u" or key == ":":
 
367
#         elif key == "u" or key == ":":
166
368
#             self.proxy.unpause()
167
 
#         elif key == u"RET":
 
369
#         elif key == "RET":
168
370
#             self.open()
169
371
        else:
170
372
            return key
171
 
    
172
 
    def property_changed(self, property=None, value=None,
173
 
                         *args, **kwargs):
174
 
        """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.
175
376
        This overrides the method from MandosClientPropertyCache"""
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:
 
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):
181
383
            self.update()
182
384
 
183
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
 
184
396
class ConstrainedListBox(urwid.ListBox):
185
397
    """Like a normal urwid.ListBox, but will consume all "up" or
186
398
    "down" key presses, thus not allowing any containing widgets to
187
399
    use them as an excuse to shift focus away from this widget.
188
400
    """
189
 
    def keypress(self, (maxcol, maxrow), key):
190
 
        ret = super(ConstrainedListBox, self).keypress((maxcol, maxrow), key)
191
 
        if ret in (u"up", u"down"):
 
401
    def keypress(self, *args, **kwargs):
 
402
        ret = (super(ConstrainedListBox, self)
 
403
               .keypress(*args, **kwargs))
 
404
        if ret in ("up", "down"):
192
405
            return
193
406
        return ret
194
407
 
199
412
    """
200
413
    def __init__(self, max_log_length=1000):
201
414
        DBusGMainLoop(set_as_default=True)
202
 
        
 
415
 
203
416
        self.screen = urwid.curses_display.Screen()
204
 
        
 
417
 
205
418
        self.screen.register_palette((
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")),
 
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"),
223
438
                ))
224
 
        
 
439
 
225
440
        if urwid.supports_unicode():
226
 
            #self.divider = u"─" # \u2500
227
 
            self.divider = u"━" # \u2501
 
441
            self.divider = "─"  # \u2500
228
442
        else:
229
 
            #self.divider = u"-" # \u002d
230
 
            self.divider = u"_" # \u005f
231
 
        
 
443
            self.divider = "_"  # \u005f
 
444
 
232
445
        self.screen.start()
233
 
        
 
446
 
234
447
        self.size = self.screen.get_cols_rows()
235
 
        
 
448
 
236
449
        self.clients = urwid.SimpleListWalker([])
237
450
        self.clients_dict = {}
238
 
        
 
451
 
239
452
        # We will add Text widgets to this list
240
 
        self.log = []
 
453
        self.log = urwid.SimpleListWalker([])
241
454
        self.max_log_length = max_log_length
242
 
        
 
455
 
243
456
        # We keep a reference to the log widget so we can remove it
244
457
        # from the ListWalker without it getting destroyed
245
458
        self.logbox = ConstrainedListBox(self.log)
246
 
        
 
459
 
247
460
        # This keeps track of whether self.uilist currently has
248
461
        # self.logbox in it or not
249
462
        self.log_visible = True
250
 
        self.log_wrap = u"any"
251
 
        
 
463
        self.log_wrap = "any"
 
464
 
 
465
        self.loghandler = UILogHandler(self)
 
466
 
252
467
        self.rebuild()
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
 
    
 
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
 
296
479
    def rebuild(self):
297
480
        """This rebuilds the User Interface.
298
481
        Call this when the widget layout needs to change"""
299
482
        self.uilist = []
300
 
        #self.uilist.append(urwid.ListBox(self.clients))
301
 
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.clients),
302
 
                                       #header=urwid.Divider(),
 
483
        # self.uilist.append(urwid.ListBox(self.clients))
 
484
        self.uilist.append(urwid.Frame(ConstrainedListBox(self.
 
485
                                                          clients),
 
486
                                       # header=urwid.Divider(),
303
487
                                       header=None,
304
 
                                       footer=urwid.Divider(div_char=self.divider)))
 
488
                                       footer=urwid.Divider(
 
489
                                           div_char=self.divider)))
305
490
        if self.log_visible:
306
491
            self.uilist.append(self.logbox)
307
 
            pass
308
492
        self.topwidget = urwid.Pile(self.uilist)
309
 
    
310
 
    def log_message(self, markup):
311
 
        """Add a log message to the log buffer."""
 
493
 
 
494
    def add_log_line(self, markup):
312
495
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
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
 
    
 
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
 
317
503
    def toggle_log_display(self):
318
504
        """Toggle visibility of the log buffer."""
319
505
        self.log_visible = not self.log_visible
320
506
        self.rebuild()
321
 
        self.log_message(u"Log visibility changed to: "
322
 
                         + unicode(self.log_visible))
323
 
    
 
507
        log.debug("Log visibility changed to: %s", self.log_visible)
 
508
 
324
509
    def change_log_display(self):
325
510
        """Change type of log display.
326
511
        Currently, this toggles wrapping of text lines."""
327
 
        if self.log_wrap == u"clip":
328
 
            self.log_wrap = u"any"
 
512
        if self.log_wrap == "clip":
 
513
            self.log_wrap = "any"
329
514
        else:
330
 
            self.log_wrap = u"clip"
 
515
            self.log_wrap = "clip"
331
516
        for textwidget in self.log:
332
517
            textwidget.set_wrap_mode(self.log_wrap)
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
 
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
339
524
        Mandos server object."""
 
525
        if client_interface not in interfaces:
 
526
            # Not a Mandos client object; ignore
 
527
            return
340
528
        try:
341
529
            client = self.clients_dict[path]
342
530
        except KeyError:
343
531
            # not found?
344
 
            return
345
 
        self.remove_client(client, path)
346
 
    
347
 
    def add_new_client(self, path, properties):
 
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
348
545
        client_proxy_object = self.bus.get_object(self.busname, path)
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),
 
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])),
358
552
                        path=path)
359
 
    
 
553
 
360
554
    def add_client(self, client, path=None):
361
555
        self.clients.append(client)
362
556
        if path is None:
363
557
            path = client.proxy.object_path
364
558
        self.clients_dict[path] = client
365
 
        self.clients.sort(None, lambda c: c.properties[u"name"])
 
559
        self.clients.sort(key=lambda c: c.properties["Name"])
366
560
        self.refresh()
367
 
    
 
561
 
368
562
    def remove_client(self, client, path=None):
369
563
        self.clients.remove(client)
370
564
        if path is None:
371
565
            path = client.proxy.object_path
372
566
        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()
378
567
        self.refresh()
379
 
    
 
568
 
380
569
    def refresh(self):
381
570
        """Redraw the screen"""
382
571
        canvas = self.topwidget.render(self.size, focus=True)
383
572
        self.screen.draw_screen(self.size, canvas)
384
 
    
 
573
 
385
574
    def run(self):
386
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
 
387
621
        self.refresh()
388
 
        self._input_callback_tag = (gobject.io_add_watch
389
 
                                    (sys.stdin.fileno(),
390
 
                                     gobject.IO_IN,
391
 
                                     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)))
392
627
        self.main_loop.run()
393
628
        # Main loop has finished, we should close everything now
394
 
        gobject.source_remove(self._input_callback_tag)
395
 
        self.screen.stop()
396
 
    
 
629
        GLib.source_remove(self._input_callback_tag)
 
630
        with warnings.catch_warnings():
 
631
            warnings.simplefilter("ignore", BytesWarning)
 
632
            self.screen.stop()
 
633
 
397
634
    def stop(self):
398
635
        self.main_loop.quit()
399
 
    
 
636
        log.removeHandler(self.loghandler)
 
637
        log.propagate = self.orig_log_propagate
 
638
 
400
639
    def process_input(self, source, condition):
401
640
        keys = self.screen.get_input()
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
 
                         }
 
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
                        }
412
651
        for key in keys:
413
652
            try:
414
653
                key = translations[key]
415
654
            except KeyError:    # :-)
416
655
                pass
417
 
            
418
 
            if key == u"q" or key == u"Q":
 
656
 
 
657
            if key == "q" or key == "Q":
419
658
                self.stop()
420
659
                break
421
 
            elif key == u"window resize":
 
660
            elif key == "window resize":
422
661
                self.size = self.screen.get_cols_rows()
423
662
                self.refresh()
424
 
            elif key == u"\f":  # Ctrl-L
 
663
            elif key == "ctrl l":
 
664
                self.screen.clear()
425
665
                self.refresh()
426
 
            elif key == u"l" or key == u"D":
 
666
            elif key == "l" or key == "D":
427
667
                self.toggle_log_display()
428
668
                self.refresh()
429
 
            elif key == u"w" or key == u"i":
 
669
            elif key == "w" or key == "i":
430
670
                self.change_log_display()
431
671
                self.refresh()
432
 
            elif key == u"?" or key == u"f1":
433
 
                self.log_message(u"Help!")
 
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
                                   ))))
434
695
                self.refresh()
435
 
            elif key == u"tab":
 
696
            elif key == "tab":
436
697
                if self.topwidget.get_focus() is self.logbox:
437
698
                    self.topwidget.set_focus(0)
438
699
                else:
439
700
                    self.topwidget.set_focus(self.logbox)
440
701
                self.refresh()
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
 
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
459
727
            elif self.topwidget.selectable():
460
728
                self.topwidget.keypress(self.size, key)
461
729
                self.refresh()
462
730
        return True
463
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
 
464
746
ui = UserInterface()
465
747
try:
466
748
    ui.run()
467
 
except:
468
 
    ui.screen.stop()
 
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()
469
757
    raise