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  • Committer: Teddy Hogeborn
  • Date: 2016-06-03 18:24:51 UTC
  • Revision ID: teddy@recompile.se-20160603182451-l1hfhvi0wdf6sde1
mandos: Minor bug fix for Python 3

* mandos (ClientHandler.handle): The GnuTLS priority string needs to
                                 be encoded to a byte string

Reported-by: Valerio Bellizzomi <valerio@selnet.org>

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mandos-monitor
3
3
# 
4
4
# Mandos Monitor - Control and monitor the Mandos server
5
5
# 
6
 
# Copyright © 2009,2010 Teddy Hogeborn
7
 
# Copyright © 2009,2010 Björn Påhlsson
 
6
# Copyright © 2009-2016 Teddy Hogeborn
 
7
# Copyright © 2009-2016 Björn Påhlsson
8
8
# 
9
9
# This program is free software: you can redistribute it and/or modify
10
10
# it under the terms of the GNU General Public License as published by
17
17
#     GNU General Public License for more details.
18
18
# 
19
19
# You should have received a copy of the GNU General Public License
20
 
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
20
# along with this program.  If not, see
 
21
# <http://www.gnu.org/licenses/>.
21
22
# 
22
 
# Contact the authors at <mandos@fukt.bsnet.se>.
 
23
# Contact the authors at <mandos@recompile.se>.
23
24
# 
24
25
 
25
 
from __future__ import division, absolute_import, with_statement
 
26
from __future__ import (division, absolute_import, print_function,
 
27
                        unicode_literals)
 
28
try:
 
29
    from future_builtins import *
 
30
except ImportError:
 
31
    pass
26
32
 
27
33
import sys
28
34
import os
29
 
import signal
30
35
 
31
36
import datetime
32
37
 
34
39
import urwid
35
40
 
36
41
from dbus.mainloop.glib import DBusGMainLoop
37
 
import gobject
 
42
from gi.repository import GLib
38
43
 
39
44
import dbus
40
45
 
41
 
import UserList
42
 
 
43
46
import locale
44
47
 
45
 
locale.setlocale(locale.LC_ALL, u'')
 
48
if sys.version_info.major == 2:
 
49
    str = unicode
 
50
 
 
51
locale.setlocale(locale.LC_ALL, '')
46
52
 
47
53
import logging
48
54
logging.getLogger('dbus.proxies').setLevel(logging.CRITICAL)
49
55
 
50
56
# Some useful constants
51
 
domain = 'se.bsnet.fukt'
 
57
domain = 'se.recompile'
52
58
server_interface = domain + '.Mandos'
53
59
client_interface = domain + '.Mandos.Client'
54
 
version = "1.2.3"
55
 
 
56
 
# Always run in monochrome mode
57
 
urwid.curses_display.curses.has_colors = lambda : False
58
 
 
59
 
# Urwid doesn't support blinking, but we want it.  Since we have no
60
 
# use for underline on its own, we make underline also always blink.
61
 
urwid.curses_display.curses.A_UNDERLINE |= (
62
 
    urwid.curses_display.curses.A_BLINK)
 
60
version = "1.7.7"
 
61
 
 
62
try:
 
63
    dbus.OBJECT_MANAGER_IFACE
 
64
except AttributeError:
 
65
    dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
63
66
 
64
67
def isoformat_to_datetime(iso):
65
68
    "Parse an ISO 8601 date string to a datetime.datetime()"
66
69
    if not iso:
67
70
        return None
68
 
    d, t = iso.split(u"T", 1)
69
 
    year, month, day = d.split(u"-", 2)
70
 
    hour, minute, second = t.split(u":", 2)
 
71
    d, t = iso.split("T", 1)
 
72
    year, month, day = d.split("-", 2)
 
73
    hour, minute, second = t.split(":", 2)
71
74
    second, fraction = divmod(float(second), 1)
72
75
    return datetime.datetime(int(year),
73
76
                             int(month),
82
85
    properties and calls a hook function when any of them are
83
86
    changed.
84
87
    """
85
 
    def __init__(self, proxy_object=None, *args, **kwargs):
 
88
    def __init__(self, proxy_object=None, properties=None, **kwargs):
86
89
        self.proxy = proxy_object # Mandos Client proxy object
87
 
        
88
 
        self.properties = dict()
89
 
        self.proxy.connect_to_signal(u"PropertyChanged",
90
 
                                     self.property_changed,
91
 
                                     client_interface,
92
 
                                     byte_arrays=True)
93
 
        
94
 
        self.properties.update(
95
 
            self.proxy.GetAll(client_interface,
96
 
                              dbus_interface = dbus.PROPERTIES_IFACE))
97
 
 
98
 
        #XXX This break good super behaviour!
99
 
#        super(MandosClientPropertyCache, self).__init__(
100
 
#            *args, **kwargs)
 
90
        self.properties = dict() if properties is None else properties
 
91
        self.property_changed_match = (
 
92
            self.proxy.connect_to_signal("PropertiesChanged",
 
93
                                         self.properties_changed,
 
94
                                         dbus.PROPERTIES_IFACE,
 
95
                                         byte_arrays=True))
 
96
        
 
97
        if properties is None:
 
98
            self.properties.update(
 
99
                self.proxy.GetAll(client_interface,
 
100
                                  dbus_interface
 
101
                                  = dbus.PROPERTIES_IFACE))
 
102
        
 
103
        super(MandosClientPropertyCache, self).__init__(**kwargs)
101
104
    
102
 
    def property_changed(self, property=None, value=None):
103
 
        """This is called whenever we get a PropertyChanged signal
104
 
        It updates the changed property in the "properties" dict.
 
105
    def properties_changed(self, interface, properties, invalidated):
 
106
        """This is called whenever we get a PropertiesChanged signal
 
107
        It updates the changed properties in the "properties" dict.
105
108
        """
106
109
        # Update properties dict with new value
107
 
        self.properties[property] = value
 
110
        if interface == client_interface:
 
111
            self.properties.update(properties)
 
112
    
 
113
    def delete(self):
 
114
        self.property_changed_match.remove()
108
115
 
109
116
 
110
117
class MandosClientWidget(urwid.FlowWidget, MandosClientPropertyCache):
112
119
    """
113
120
    
114
121
    def __init__(self, server_proxy_object=None, update_hook=None,
115
 
                 delete_hook=None, logger=None, *args, **kwargs):
 
122
                 delete_hook=None, logger=None, **kwargs):
116
123
        # Called on update
117
124
        self.update_hook = update_hook
118
125
        # Called on delete
123
130
        self.logger = logger
124
131
        
125
132
        self._update_timer_callback_tag = None
126
 
        self._update_timer_callback_lock = 0
127
 
        self.last_checker_failed = False
128
133
        
129
134
        # The widget shown normally
130
 
        self._text_widget = urwid.Text(u"")
 
135
        self._text_widget = urwid.Text("")
131
136
        # The widget shown when we have focus
132
 
        self._focus_text_widget = urwid.Text(u"")
133
 
        super(MandosClientWidget, self).__init__(
134
 
            update_hook=update_hook, delete_hook=delete_hook,
135
 
            *args, **kwargs)
 
137
        self._focus_text_widget = urwid.Text("")
 
138
        super(MandosClientWidget, self).__init__(**kwargs)
136
139
        self.update()
137
140
        self.opened = False
138
141
        
139
 
        last_checked_ok = isoformat_to_datetime(self.properties
140
 
                                                [u"LastCheckedOK"])
141
 
        if last_checked_ok is None:
142
 
            self.last_checker_failed = True
143
 
        else:
144
 
            self.last_checker_failed = ((datetime.datetime.utcnow()
145
 
                                         - last_checked_ok)
146
 
                                        > datetime.timedelta
147
 
                                        (milliseconds=
148
 
                                         self.properties
149
 
                                         [u"Interval"]))
150
 
        
151
 
        if self.last_checker_failed:
152
 
            self.using_timer(True)
153
 
        
154
 
        if self.need_approval:
155
 
            self.using_timer(True)
156
 
        
157
 
        self.proxy.connect_to_signal(u"CheckerCompleted",
158
 
                                     self.checker_completed,
159
 
                                     client_interface,
160
 
                                     byte_arrays=True)
161
 
        self.proxy.connect_to_signal(u"CheckerStarted",
162
 
                                     self.checker_started,
163
 
                                     client_interface,
164
 
                                     byte_arrays=True)
165
 
        self.proxy.connect_to_signal(u"GotSecret",
166
 
                                     self.got_secret,
167
 
                                     client_interface,
168
 
                                     byte_arrays=True)
169
 
        self.proxy.connect_to_signal(u"NeedApproval",
170
 
                                     self.need_approval,
171
 
                                     client_interface,
172
 
                                     byte_arrays=True)
173
 
        self.proxy.connect_to_signal(u"Rejected",
174
 
                                     self.rejected,
175
 
                                     client_interface,
176
 
                                     byte_arrays=True)
 
142
        self.match_objects = (
 
143
            self.proxy.connect_to_signal("CheckerCompleted",
 
144
                                         self.checker_completed,
 
145
                                         client_interface,
 
146
                                         byte_arrays=True),
 
147
            self.proxy.connect_to_signal("CheckerStarted",
 
148
                                         self.checker_started,
 
149
                                         client_interface,
 
150
                                         byte_arrays=True),
 
151
            self.proxy.connect_to_signal("GotSecret",
 
152
                                         self.got_secret,
 
153
                                         client_interface,
 
154
                                         byte_arrays=True),
 
155
            self.proxy.connect_to_signal("NeedApproval",
 
156
                                         self.need_approval,
 
157
                                         client_interface,
 
158
                                         byte_arrays=True),
 
159
            self.proxy.connect_to_signal("Rejected",
 
160
                                         self.rejected,
 
161
                                         client_interface,
 
162
                                         byte_arrays=True))
 
163
        self.logger('Created client {}'
 
164
                    .format(self.properties["Name"]), level=0)
177
165
    
178
 
    def property_changed(self, property=None, value=None):
179
 
        super(self, MandosClientWidget).property_changed(property,
180
 
                                                         value)
181
 
        if property == u"ApprovalPending":
182
 
            using_timer(bool(value))
183
 
        
184
166
    def using_timer(self, flag):
185
167
        """Call this method with True or False when timer should be
186
168
        activated or deactivated.
187
169
        """
188
 
        old = self._update_timer_callback_lock
189
 
        if flag:
190
 
            self._update_timer_callback_lock += 1
191
 
        else:
192
 
            self._update_timer_callback_lock -= 1
193
 
        if old == 0 and self._update_timer_callback_lock:
194
 
            self._update_timer_callback_tag = (gobject.timeout_add
 
170
        if flag and self._update_timer_callback_tag is None:
 
171
            # Will update the shown timer value every second
 
172
            self._update_timer_callback_tag = (GLib.timeout_add
195
173
                                               (1000,
196
174
                                                self.update_timer))
197
 
        elif old and self._update_timer_callback_lock == 0:
198
 
            gobject.source_remove(self._update_timer_callback_tag)
 
175
        elif not (flag or self._update_timer_callback_tag is None):
 
176
            GLib.source_remove(self._update_timer_callback_tag)
199
177
            self._update_timer_callback_tag = None
200
178
    
201
179
    def checker_completed(self, exitstatus, condition, command):
202
180
        if exitstatus == 0:
203
 
            if self.last_checker_failed:
204
 
                self.last_checker_failed = False
205
 
                self.using_timer(False)
206
 
            #self.logger(u'Checker for client %s (command "%s")'
207
 
            #            u' was successful'
208
 
            #            % (self.properties[u"Name"], command))
 
181
            self.logger('Checker for client {} (command "{}")'
 
182
                        ' succeeded'.format(self.properties["Name"],
 
183
                                            command), level=0)
209
184
            self.update()
210
185
            return
211
186
        # Checker failed
212
 
        if not self.last_checker_failed:
213
 
            self.last_checker_failed = True
214
 
            self.using_timer(True)
215
187
        if os.WIFEXITED(condition):
216
 
            self.logger(u'Checker for client %s (command "%s")'
217
 
                        u' failed with exit code %s'
218
 
                        % (self.properties[u"Name"], command,
219
 
                           os.WEXITSTATUS(condition)))
 
188
            self.logger('Checker for client {} (command "{}") failed'
 
189
                        ' with exit code {}'
 
190
                        .format(self.properties["Name"], command,
 
191
                                os.WEXITSTATUS(condition)))
220
192
        elif os.WIFSIGNALED(condition):
221
 
            self.logger(u'Checker for client %s (command "%s")'
222
 
                        u' was killed by signal %s'
223
 
                        % (self.properties[u"Name"], command,
224
 
                           os.WTERMSIG(condition)))
225
 
        elif os.WCOREDUMP(condition):
226
 
            self.logger(u'Checker for client %s (command "%s")'
227
 
                        u' dumped core'
228
 
                        % (self.properties[u"Name"], command))
229
 
        else:
230
 
            self.logger(u'Checker for client %s completed'
231
 
                        u' mysteriously')
 
193
            self.logger('Checker for client {} (command "{}") was'
 
194
                        ' killed by signal {}'
 
195
                        .format(self.properties["Name"], command,
 
196
                                os.WTERMSIG(condition)))
232
197
        self.update()
233
198
    
234
199
    def checker_started(self, command):
235
 
        #self.logger(u'Client %s started checker "%s"'
236
 
        #            % (self.properties[u"Name"], unicode(command)))
237
 
        pass
 
200
        """Server signals that a checker started."""
 
201
        self.logger('Client {} started checker "{}"'
 
202
                    .format(self.properties["Name"],
 
203
                            command), level=0)
238
204
    
239
205
    def got_secret(self):
240
 
        self.last_checker_failed = False
241
 
        self.logger(u'Client %s received its secret'
242
 
                    % self.properties[u"Name"])
 
206
        self.logger('Client {} received its secret'
 
207
                    .format(self.properties["Name"]))
243
208
    
244
209
    def need_approval(self, timeout, default):
245
210
        if not default:
246
 
            message = u'Client %s needs approval within %s seconds'
 
211
            message = 'Client {} needs approval within {} seconds'
247
212
        else:
248
 
            message = u'Client %s will get its secret in %s seconds'
249
 
        self.logger(message
250
 
                    % (self.properties[u"Name"], timeout/1000))
251
 
        self.using_timer(True)
 
213
            message = 'Client {} will get its secret in {} seconds'
 
214
        self.logger(message.format(self.properties["Name"],
 
215
                                   timeout/1000))
252
216
    
253
217
    def rejected(self, reason):
254
 
        self.logger(u'Client %s was rejected; reason: %s'
255
 
                    % (self.properties[u"Name"], reason))
 
218
        self.logger('Client {} was rejected; reason: {}'
 
219
                    .format(self.properties["Name"], reason))
256
220
    
257
221
    def selectable(self):
258
222
        """Make this a "selectable" widget.
259
223
        This overrides the method from urwid.FlowWidget."""
260
224
        return True
261
225
    
262
 
    def rows(self, (maxcol,), focus=False):
 
226
    def rows(self, maxcolrow, focus=False):
263
227
        """How many rows this widget will occupy might depend on
264
228
        whether we have focus or not.
265
229
        This overrides the method from urwid.FlowWidget"""
266
 
        return self.current_widget(focus).rows((maxcol,), focus=focus)
 
230
        return self.current_widget(focus).rows(maxcolrow, focus=focus)
267
231
    
268
232
    def current_widget(self, focus=False):
269
233
        if focus or self.opened:
273
237
    def update(self):
274
238
        "Called when what is visible on the screen should be updated."
275
239
        # How to add standout mode to a style
276
 
        with_standout = { u"normal": u"standout",
277
 
                          u"bold": u"bold-standout",
278
 
                          u"underline-blink":
279
 
                              u"underline-blink-standout",
280
 
                          u"bold-underline-blink":
281
 
                              u"bold-underline-blink-standout",
 
240
        with_standout = { "normal": "standout",
 
241
                          "bold": "bold-standout",
 
242
                          "underline-blink":
 
243
                              "underline-blink-standout",
 
244
                          "bold-underline-blink":
 
245
                              "bold-underline-blink-standout",
282
246
                          }
283
 
 
 
247
        
284
248
        # Rebuild focus and non-focus widgets using current properties
285
 
 
 
249
        
286
250
        # Base part of a client. Name!
287
 
        base = (u'%(name)s: '
288
 
                      % {u"name": self.properties[u"Name"]})
289
 
        if not self.properties[u"Enabled"]:
290
 
            message = u"DISABLED"
291
 
        elif self.properties[u"ApprovalPending"]:
 
251
        base = '{name}: '.format(name=self.properties["Name"])
 
252
        if not self.properties["Enabled"]:
 
253
            message = "DISABLED"
 
254
            self.using_timer(False)
 
255
        elif self.properties["ApprovalPending"]:
292
256
            timeout = datetime.timedelta(milliseconds
293
257
                                         = self.properties
294
 
                                         [u"ApprovalDelay"])
 
258
                                         ["ApprovalDelay"])
295
259
            last_approval_request = isoformat_to_datetime(
296
 
                self.properties[u"LastApprovalRequest"])
 
260
                self.properties["LastApprovalRequest"])
297
261
            if last_approval_request is not None:
298
 
                timer = timeout - (datetime.datetime.utcnow()
299
 
                                   - last_approval_request)
 
262
                timer = max(timeout - (datetime.datetime.utcnow()
 
263
                                       - last_approval_request),
 
264
                            datetime.timedelta())
300
265
            else:
301
266
                timer = datetime.timedelta()
302
 
            if self.properties[u"ApprovedByDefault"]:
303
 
                message = u"Approval in %s. (d)eny?"
304
 
            else:
305
 
                message = u"Denial in %s. (a)pprove?"
306
 
            message = message % unicode(timer).rsplit(".", 1)[0]
307
 
        elif self.last_checker_failed:
308
 
            timeout = datetime.timedelta(milliseconds
309
 
                                         = self.properties
310
 
                                         [u"Timeout"])
311
 
            last_ok = isoformat_to_datetime(
312
 
                max((self.properties[u"LastCheckedOK"]
313
 
                     or self.properties[u"Created"]),
314
 
                    self.properties[u"LastEnabled"]))
315
 
            timer = timeout - (datetime.datetime.utcnow() - last_ok)
316
 
            message = (u'A checker has failed! Time until client'
317
 
                       u' gets disabled: %s'
318
 
                           % unicode(timer).rsplit(".", 1)[0])
 
267
            if self.properties["ApprovedByDefault"]:
 
268
                message = "Approval in {}. (d)eny?"
 
269
            else:
 
270
                message = "Denial in {}. (a)pprove?"
 
271
            message = message.format(str(timer).rsplit(".", 1)[0])
 
272
            self.using_timer(True)
 
273
        elif self.properties["LastCheckerStatus"] != 0:
 
274
            # When checker has failed, show timer until client expires
 
275
            expires = self.properties["Expires"]
 
276
            if expires == "":
 
277
                timer = datetime.timedelta(0)
 
278
            else:
 
279
                expires = (datetime.datetime.strptime
 
280
                           (expires, '%Y-%m-%dT%H:%M:%S.%f'))
 
281
                timer = max(expires - datetime.datetime.utcnow(),
 
282
                            datetime.timedelta())
 
283
            message = ('A checker has failed! Time until client'
 
284
                       ' gets disabled: {}'
 
285
                       .format(str(timer).rsplit(".", 1)[0]))
 
286
            self.using_timer(True)
319
287
        else:
320
 
            message = u"enabled"
321
 
        self._text = "%s%s" % (base, message)
322
 
            
 
288
            message = "enabled"
 
289
            self.using_timer(False)
 
290
        self._text = "{}{}".format(base, message)
 
291
        
323
292
        if not urwid.supports_unicode():
324
293
            self._text = self._text.encode("ascii", "replace")
325
 
        textlist = [(u"normal", self._text)]
 
294
        textlist = [("normal", self._text)]
326
295
        self._text_widget.set_text(textlist)
327
296
        self._focus_text_widget.set_text([(with_standout[text[0]],
328
297
                                           text[1])
337
306
            self.update_hook()
338
307
    
339
308
    def update_timer(self):
340
 
        "called by gobject"
 
309
        """called by GLib. Will indefinitely loop until
 
310
        GLib.source_remove() on tag is called
 
311
        """
341
312
        self.update()
342
313
        return True             # Keep calling this
343
314
    
344
 
    def delete(self):
 
315
    def delete(self, **kwargs):
345
316
        if self._update_timer_callback_tag is not None:
346
 
            gobject.source_remove(self._update_timer_callback_tag)
 
317
            GLib.source_remove(self._update_timer_callback_tag)
347
318
            self._update_timer_callback_tag = None
 
319
        for match in self.match_objects:
 
320
            match.remove()
 
321
        self.match_objects = ()
348
322
        if self.delete_hook is not None:
349
323
            self.delete_hook(self)
 
324
        return super(MandosClientWidget, self).delete(**kwargs)
350
325
    
351
 
    def render(self, (maxcol,), focus=False):
 
326
    def render(self, maxcolrow, focus=False):
352
327
        """Render differently if we have focus.
353
328
        This overrides the method from urwid.FlowWidget"""
354
 
        return self.current_widget(focus).render((maxcol,),
 
329
        return self.current_widget(focus).render(maxcolrow,
355
330
                                                 focus=focus)
356
331
    
357
 
    def keypress(self, (maxcol,), key):
 
332
    def keypress(self, maxcolrow, key):
358
333
        """Handle keys.
359
334
        This overrides the method from urwid.FlowWidget"""
360
 
        if key == u"+":
361
 
            self.proxy.Enable(dbus_interface = client_interface)
362
 
        elif key == u"-":
363
 
            self.proxy.Disable(dbus_interface = client_interface)
364
 
        elif key == u"a":
 
335
        if key == "+":
 
336
            self.proxy.Set(client_interface, "Enabled",
 
337
                           dbus.Boolean(True), ignore_reply = True,
 
338
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
339
        elif key == "-":
 
340
            self.proxy.Set(client_interface, "Enabled", False,
 
341
                           ignore_reply = True,
 
342
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
343
        elif key == "a":
365
344
            self.proxy.Approve(dbus.Boolean(True, variant_level=1),
366
 
                               dbus_interface = client_interface)
367
 
        elif key == u"d":
 
345
                               dbus_interface = client_interface,
 
346
                               ignore_reply=True)
 
347
        elif key == "d":
368
348
            self.proxy.Approve(dbus.Boolean(False, variant_level=1),
369
 
                                  dbus_interface = client_interface)
370
 
        elif key == u"R" or key == u"_" or key == u"ctrl k":
 
349
                                  dbus_interface = client_interface,
 
350
                               ignore_reply=True)
 
351
        elif key == "R" or key == "_" or key == "ctrl k":
371
352
            self.server_proxy_object.RemoveClient(self.proxy
372
 
                                                  .object_path)
373
 
        elif key == u"s":
374
 
            self.proxy.StartChecker(dbus_interface = client_interface)
375
 
        elif key == u"S":
376
 
            self.proxy.StopChecker(dbus_interface = client_interface)
377
 
        elif key == u"C":
378
 
            self.proxy.CheckedOK(dbus_interface = client_interface)
 
353
                                                  .object_path,
 
354
                                                  ignore_reply=True)
 
355
        elif key == "s":
 
356
            self.proxy.Set(client_interface, "CheckerRunning",
 
357
                           dbus.Boolean(True), ignore_reply = True,
 
358
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
359
        elif key == "S":
 
360
            self.proxy.Set(client_interface, "CheckerRunning",
 
361
                           dbus.Boolean(False), ignore_reply = True,
 
362
                           dbus_interface = dbus.PROPERTIES_IFACE)
 
363
        elif key == "C":
 
364
            self.proxy.CheckedOK(dbus_interface = client_interface,
 
365
                                 ignore_reply=True)
379
366
        # xxx
380
 
#         elif key == u"p" or key == "=":
 
367
#         elif key == "p" or key == "=":
381
368
#             self.proxy.pause()
382
 
#         elif key == u"u" or key == ":":
 
369
#         elif key == "u" or key == ":":
383
370
#             self.proxy.unpause()
384
 
#         elif key == u"RET":
 
371
#         elif key == "RET":
385
372
#             self.open()
386
373
        else:
387
374
            return key
388
375
    
389
 
    def property_changed(self, property=None, value=None,
390
 
                         *args, **kwargs):
391
 
        """Call self.update() if old value is not new value.
 
376
    def properties_changed(self, interface, properties, invalidated):
 
377
        """Call self.update() if any properties changed.
392
378
        This overrides the method from MandosClientPropertyCache"""
393
 
        property_name = unicode(property)
394
 
        old_value = self.properties.get(property_name)
395
 
        super(MandosClientWidget, self).property_changed(
396
 
            property=property, value=value, *args, **kwargs)
397
 
        if self.properties.get(property_name) != old_value:
 
379
        old_values = { key: self.properties.get(key)
 
380
                       for key in properties.keys() }
 
381
        super(MandosClientWidget, self).properties_changed(
 
382
            interface, properties, invalidated)
 
383
        if any(old_values[key] != self.properties.get(key)
 
384
               for key in old_values):
398
385
            self.update()
399
386
 
400
387
 
403
390
    "down" key presses, thus not allowing any containing widgets to
404
391
    use them as an excuse to shift focus away from this widget.
405
392
    """
406
 
    def keypress(self, (maxcol, maxrow), key):
407
 
        ret = super(ConstrainedListBox, self).keypress((maxcol,
408
 
                                                        maxrow), key)
409
 
        if ret in (u"up", u"down"):
 
393
    def keypress(self, *args, **kwargs):
 
394
        ret = super(ConstrainedListBox, self).keypress(*args, **kwargs)
 
395
        if ret in ("up", "down"):
410
396
            return
411
397
        return ret
412
398
 
415
401
    """This is the entire user interface - the whole screen
416
402
    with boxes, lists of client widgets, etc.
417
403
    """
418
 
    def __init__(self, max_log_length=1000):
 
404
    def __init__(self, max_log_length=1000, log_level=1):
419
405
        DBusGMainLoop(set_as_default=True)
420
406
        
421
407
        self.screen = urwid.curses_display.Screen()
422
408
        
423
409
        self.screen.register_palette((
424
 
                (u"normal",
425
 
                 u"default", u"default", None),
426
 
                (u"bold",
427
 
                 u"default", u"default", u"bold"),
428
 
                (u"underline-blink",
429
 
                 u"default", u"default", u"underline"),
430
 
                (u"standout",
431
 
                 u"default", u"default", u"standout"),
432
 
                (u"bold-underline-blink",
433
 
                 u"default", u"default", (u"bold", u"underline")),
434
 
                (u"bold-standout",
435
 
                 u"default", u"default", (u"bold", u"standout")),
436
 
                (u"underline-blink-standout",
437
 
                 u"default", u"default", (u"underline", u"standout")),
438
 
                (u"bold-underline-blink-standout",
439
 
                 u"default", u"default", (u"bold", u"underline",
440
 
                                          u"standout")),
 
410
                ("normal",
 
411
                 "default", "default", None),
 
412
                ("bold",
 
413
                 "bold", "default", "bold"),
 
414
                ("underline-blink",
 
415
                 "underline,blink", "default", "underline,blink"),
 
416
                ("standout",
 
417
                 "standout", "default", "standout"),
 
418
                ("bold-underline-blink",
 
419
                 "bold,underline,blink", "default", "bold,underline,blink"),
 
420
                ("bold-standout",
 
421
                 "bold,standout", "default", "bold,standout"),
 
422
                ("underline-blink-standout",
 
423
                 "underline,blink,standout", "default",
 
424
                 "underline,blink,standout"),
 
425
                ("bold-underline-blink-standout",
 
426
                 "bold,underline,blink,standout", "default",
 
427
                 "bold,underline,blink,standout"),
441
428
                ))
442
429
        
443
430
        if urwid.supports_unicode():
444
 
            self.divider = u"─" # \u2500
445
 
            #self.divider = u"━" # \u2501
 
431
            self.divider = "─" # \u2500
 
432
            #self.divider = "━" # \u2501
446
433
        else:
447
 
            #self.divider = u"-" # \u002d
448
 
            self.divider = u"_" # \u005f
 
434
            #self.divider = "-" # \u002d
 
435
            self.divider = "_" # \u005f
449
436
        
450
437
        self.screen.start()
451
438
        
458
445
        self.log = []
459
446
        self.max_log_length = max_log_length
460
447
        
 
448
        self.log_level = log_level
 
449
        
461
450
        # We keep a reference to the log widget so we can remove it
462
451
        # from the ListWalker without it getting destroyed
463
452
        self.logbox = ConstrainedListBox(self.log)
465
454
        # This keeps track of whether self.uilist currently has
466
455
        # self.logbox in it or not
467
456
        self.log_visible = True
468
 
        self.log_wrap = u"any"
 
457
        self.log_wrap = "any"
469
458
        
470
459
        self.rebuild()
471
 
        self.log_message_raw((u"bold",
472
 
                              u"Mandos Monitor version " + version))
473
 
        self.log_message_raw((u"bold",
474
 
                              u"q: Quit  ?: Help"))
 
460
        self.log_message_raw(("bold",
 
461
                              "Mandos Monitor version " + version))
 
462
        self.log_message_raw(("bold",
 
463
                              "q: Quit  ?: Help"))
475
464
        
476
465
        self.busname = domain + '.Mandos'
477
 
        self.main_loop = gobject.MainLoop()
478
 
        self.bus = dbus.SystemBus()
479
 
        mandos_dbus_objc = self.bus.get_object(
480
 
            self.busname, u"/", follow_name_owner_changes=True)
481
 
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
482
 
                                          dbus_interface
483
 
                                          = server_interface)
484
 
        try:
485
 
            mandos_clients = (self.mandos_serv
486
 
                              .GetAllClientsWithProperties())
487
 
        except dbus.exceptions.DBusException:
488
 
            mandos_clients = dbus.Dictionary()
489
 
        
490
 
        (self.mandos_serv
491
 
         .connect_to_signal(u"ClientRemoved",
492
 
                            self.find_and_remove_client,
493
 
                            dbus_interface=server_interface,
494
 
                            byte_arrays=True))
495
 
        (self.mandos_serv
496
 
         .connect_to_signal(u"ClientAdded",
497
 
                            self.add_new_client,
498
 
                            dbus_interface=server_interface,
499
 
                            byte_arrays=True))
500
 
        (self.mandos_serv
501
 
         .connect_to_signal(u"ClientNotFound",
502
 
                            self.client_not_found,
503
 
                            dbus_interface=server_interface,
504
 
                            byte_arrays=True))
505
 
        for path, client in mandos_clients.iteritems():
506
 
            client_proxy_object = self.bus.get_object(self.busname,
507
 
                                                      path)
508
 
            self.add_client(MandosClientWidget(server_proxy_object
509
 
                                               =self.mandos_serv,
510
 
                                               proxy_object
511
 
                                               =client_proxy_object,
512
 
                                               properties=client,
513
 
                                               update_hook
514
 
                                               =self.refresh,
515
 
                                               delete_hook
516
 
                                               =self.remove_client,
517
 
                                               logger
518
 
                                               =self.log_message),
519
 
                            path=path)
 
466
        self.main_loop = GLib.MainLoop()
520
467
    
521
468
    def client_not_found(self, fingerprint, address):
522
 
        self.log_message((u"Client with address %s and fingerprint %s"
523
 
                          u" could not be found" % (address,
524
 
                                                    fingerprint)))
 
469
        self.log_message("Client with address {} and fingerprint {}"
 
470
                         " could not be found"
 
471
                         .format(address, fingerprint))
525
472
    
526
473
    def rebuild(self):
527
474
        """This rebuilds the User Interface.
537
484
                                                     self.divider)))
538
485
        if self.log_visible:
539
486
            self.uilist.append(self.logbox)
540
 
            pass
541
487
        self.topwidget = urwid.Pile(self.uilist)
542
488
    
543
 
    def log_message(self, message):
 
489
    def log_message(self, message, level=1):
 
490
        """Log message formatted with timestamp"""
 
491
        if level < self.log_level:
 
492
            return
544
493
        timestamp = datetime.datetime.now().isoformat()
545
 
        self.log_message_raw(timestamp + u": " + message)
 
494
        self.log_message_raw("{}: {}".format(timestamp, message),
 
495
                             level=level)
546
496
    
547
 
    def log_message_raw(self, markup):
 
497
    def log_message_raw(self, markup, level=1):
548
498
        """Add a log message to the log buffer."""
 
499
        if level < self.log_level:
 
500
            return
549
501
        self.log.append(urwid.Text(markup, wrap=self.log_wrap))
550
502
        if (self.max_log_length
551
503
            and len(self.log) > self.max_log_length):
552
504
            del self.log[0:len(self.log)-self.max_log_length-1]
553
505
        self.logbox.set_focus(len(self.logbox.body.contents),
554
 
                              coming_from=u"above")
 
506
                              coming_from="above")
555
507
        self.refresh()
556
508
    
557
509
    def toggle_log_display(self):
558
510
        """Toggle visibility of the log buffer."""
559
511
        self.log_visible = not self.log_visible
560
512
        self.rebuild()
561
 
        #self.log_message(u"Log visibility changed to: "
562
 
        #                 + unicode(self.log_visible))
 
513
        self.log_message("Log visibility changed to: {}"
 
514
                         .format(self.log_visible), level=0)
563
515
    
564
516
    def change_log_display(self):
565
517
        """Change type of log display.
566
518
        Currently, this toggles wrapping of text lines."""
567
 
        if self.log_wrap == u"clip":
568
 
            self.log_wrap = u"any"
 
519
        if self.log_wrap == "clip":
 
520
            self.log_wrap = "any"
569
521
        else:
570
 
            self.log_wrap = u"clip"
 
522
            self.log_wrap = "clip"
571
523
        for textwidget in self.log:
572
524
            textwidget.set_wrap_mode(self.log_wrap)
573
 
        #self.log_message(u"Wrap mode: " + self.log_wrap)
 
525
        self.log_message("Wrap mode: {}".format(self.log_wrap),
 
526
                         level=0)
574
527
    
575
 
    def find_and_remove_client(self, path, name):
576
 
        """Find an client from its object path and remove it.
 
528
    def find_and_remove_client(self, path, interfaces):
 
529
        """Find a client by its object path and remove it.
577
530
        
578
 
        This is connected to the ClientRemoved signal from the
 
531
        This is connected to the InterfacesRemoved signal from the
579
532
        Mandos server object."""
 
533
        if client_interface not in interfaces:
 
534
            # Not a Mandos client object; ignore
 
535
            return
580
536
        try:
581
537
            client = self.clients_dict[path]
582
538
        except KeyError:
583
539
            # not found?
 
540
            self.log_message("Unknown client {!r} removed"
 
541
                             .format(path))
584
542
            return
585
 
        self.remove_client(client, path)
 
543
        client.delete()
586
544
    
587
 
    def add_new_client(self, path):
 
545
    def add_new_client(self, path, ifs_and_props):
 
546
        """Find a client by its object path and remove it.
 
547
        
 
548
        This is connected to the InterfacesAdded signal from the
 
549
        Mandos server object.
 
550
        """
 
551
        if client_interface not in ifs_and_props:
 
552
            # Not a Mandos client object; ignore
 
553
            return
588
554
        client_proxy_object = self.bus.get_object(self.busname, path)
589
555
        self.add_client(MandosClientWidget(server_proxy_object
590
556
                                           =self.mandos_serv,
595
561
                                           delete_hook
596
562
                                           =self.remove_client,
597
563
                                           logger
598
 
                                           =self.log_message),
 
564
                                           =self.log_message,
 
565
                                           properties
 
566
                                           = dict(ifs_and_props[
 
567
                                               client_interface])),
599
568
                        path=path)
600
569
    
601
570
    def add_client(self, client, path=None):
603
572
        if path is None:
604
573
            path = client.proxy.object_path
605
574
        self.clients_dict[path] = client
606
 
        self.clients.sort(None, lambda c: c.properties[u"Name"])
 
575
        self.clients.sort(key=lambda c: c.properties["Name"])
607
576
        self.refresh()
608
577
    
609
578
    def remove_client(self, client, path=None):
611
580
        if path is None:
612
581
            path = client.proxy.object_path
613
582
        del self.clients_dict[path]
614
 
        if not self.clients_dict:
615
 
            # Work around bug in Urwid 0.9.8.3 - if a SimpleListWalker
616
 
            # is completely emptied, we need to recreate it.
617
 
            self.clients = urwid.SimpleListWalker([])
618
 
            self.rebuild()
619
583
        self.refresh()
620
584
    
621
585
    def refresh(self):
625
589
    
626
590
    def run(self):
627
591
        """Start the main loop and exit when it's done."""
 
592
        self.bus = dbus.SystemBus()
 
593
        mandos_dbus_objc = self.bus.get_object(
 
594
            self.busname, "/", follow_name_owner_changes=True)
 
595
        self.mandos_serv = dbus.Interface(mandos_dbus_objc,
 
596
                                          dbus_interface
 
597
                                          = server_interface)
 
598
        try:
 
599
            mandos_clients = (self.mandos_serv
 
600
                              .GetAllClientsWithProperties())
 
601
            if not mandos_clients:
 
602
                self.log_message_raw(("bold", "Note: Server has no clients."))
 
603
        except dbus.exceptions.DBusException:
 
604
            self.log_message_raw(("bold", "Note: No Mandos server running."))
 
605
            mandos_clients = dbus.Dictionary()
 
606
        
 
607
        (self.mandos_serv
 
608
         .connect_to_signal("InterfacesRemoved",
 
609
                            self.find_and_remove_client,
 
610
                            dbus_interface
 
611
                            = dbus.OBJECT_MANAGER_IFACE,
 
612
                            byte_arrays=True))
 
613
        (self.mandos_serv
 
614
         .connect_to_signal("InterfacesAdded",
 
615
                            self.add_new_client,
 
616
                            dbus_interface
 
617
                            = dbus.OBJECT_MANAGER_IFACE,
 
618
                            byte_arrays=True))
 
619
        (self.mandos_serv
 
620
         .connect_to_signal("ClientNotFound",
 
621
                            self.client_not_found,
 
622
                            dbus_interface=server_interface,
 
623
                            byte_arrays=True))
 
624
        for path, client in mandos_clients.items():
 
625
            client_proxy_object = self.bus.get_object(self.busname,
 
626
                                                      path)
 
627
            self.add_client(MandosClientWidget(server_proxy_object
 
628
                                               =self.mandos_serv,
 
629
                                               proxy_object
 
630
                                               =client_proxy_object,
 
631
                                               properties=client,
 
632
                                               update_hook
 
633
                                               =self.refresh,
 
634
                                               delete_hook
 
635
                                               =self.remove_client,
 
636
                                               logger
 
637
                                               =self.log_message),
 
638
                            path=path)
 
639
        
628
640
        self.refresh()
629
 
        self._input_callback_tag = (gobject.io_add_watch
 
641
        self._input_callback_tag = (GLib.io_add_watch
630
642
                                    (sys.stdin.fileno(),
631
 
                                     gobject.IO_IN,
 
643
                                     GLib.IO_IN,
632
644
                                     self.process_input))
633
645
        self.main_loop.run()
634
646
        # Main loop has finished, we should close everything now
635
 
        gobject.source_remove(self._input_callback_tag)
 
647
        GLib.source_remove(self._input_callback_tag)
636
648
        self.screen.stop()
637
649
    
638
650
    def stop(self):
640
652
    
641
653
    def process_input(self, source, condition):
642
654
        keys = self.screen.get_input()
643
 
        translations = { u"ctrl n": u"down",      # Emacs
644
 
                         u"ctrl p": u"up",        # Emacs
645
 
                         u"ctrl v": u"page down", # Emacs
646
 
                         u"meta v": u"page up",   # Emacs
647
 
                         u" ": u"page down",      # less
648
 
                         u"f": u"page down",      # less
649
 
                         u"b": u"page up",        # less
650
 
                         u"j": u"down",           # vi
651
 
                         u"k": u"up",             # vi
 
655
        translations = { "ctrl n": "down",      # Emacs
 
656
                         "ctrl p": "up",        # Emacs
 
657
                         "ctrl v": "page down", # Emacs
 
658
                         "meta v": "page up",   # Emacs
 
659
                         " ": "page down",      # less
 
660
                         "f": "page down",      # less
 
661
                         "b": "page up",        # less
 
662
                         "j": "down",           # vi
 
663
                         "k": "up",             # vi
652
664
                         }
653
665
        for key in keys:
654
666
            try:
656
668
            except KeyError:    # :-)
657
669
                pass
658
670
            
659
 
            if key == u"q" or key == u"Q":
 
671
            if key == "q" or key == "Q":
660
672
                self.stop()
661
673
                break
662
 
            elif key == u"window resize":
 
674
            elif key == "window resize":
663
675
                self.size = self.screen.get_cols_rows()
664
676
                self.refresh()
665
 
            elif key == u"\f":  # Ctrl-L
 
677
            elif key == "ctrl l":
 
678
                self.screen.clear()
666
679
                self.refresh()
667
 
            elif key == u"l" or key == u"D":
 
680
            elif key == "l" or key == "D":
668
681
                self.toggle_log_display()
669
682
                self.refresh()
670
 
            elif key == u"w" or key == u"i":
 
683
            elif key == "w" or key == "i":
671
684
                self.change_log_display()
672
685
                self.refresh()
673
 
            elif key == u"?" or key == u"f1" or key == u"esc":
 
686
            elif key == "?" or key == "f1" or key == "esc":
674
687
                if not self.log_visible:
675
688
                    self.log_visible = True
676
689
                    self.rebuild()
677
 
                self.log_message_raw((u"bold",
678
 
                                      u"  ".
679
 
                                      join((u"q: Quit",
680
 
                                            u"?: Help",
681
 
                                            u"l: Log window toggle",
682
 
                                            u"TAB: Switch window",
683
 
                                            u"w: Wrap (log)"))))
684
 
                self.log_message_raw((u"bold",
685
 
                                      u"  "
686
 
                                      .join((u"Clients:",
687
 
                                             u"+: Enable",
688
 
                                             u"-: Disable",
689
 
                                             u"R: Remove",
690
 
                                             u"s: Start new checker",
691
 
                                             u"S: Stop checker",
692
 
                                             u"C: Checker OK",
693
 
                                             u"a: Approve",
694
 
                                             u"d: Deny"))))
 
690
                self.log_message_raw(("bold",
 
691
                                      "  ".
 
692
                                      join(("q: Quit",
 
693
                                            "?: Help",
 
694
                                            "l: Log window toggle",
 
695
                                            "TAB: Switch window",
 
696
                                            "w: Wrap (log lines)",
 
697
                                            "v: Toggle verbose log",
 
698
                                            ))))
 
699
                self.log_message_raw(("bold",
 
700
                                      "  "
 
701
                                      .join(("Clients:",
 
702
                                             "+: Enable",
 
703
                                             "-: Disable",
 
704
                                             "R: Remove",
 
705
                                             "s: Start new checker",
 
706
                                             "S: Stop checker",
 
707
                                             "C: Checker OK",
 
708
                                             "a: Approve",
 
709
                                             "d: Deny"))))
695
710
                self.refresh()
696
 
            elif key == u"tab":
 
711
            elif key == "tab":
697
712
                if self.topwidget.get_focus() is self.logbox:
698
713
                    self.topwidget.set_focus(0)
699
714
                else:
700
715
                    self.topwidget.set_focus(self.logbox)
701
716
                self.refresh()
702
 
            #elif (key == u"end" or key == u"meta >" or key == u"G"
703
 
            #      or key == u">"):
 
717
            elif key == "v":
 
718
                if self.log_level == 0:
 
719
                    self.log_level = 1
 
720
                    self.log_message("Verbose mode: Off")
 
721
                else:
 
722
                    self.log_level = 0
 
723
                    self.log_message("Verbose mode: On")
 
724
            #elif (key == "end" or key == "meta >" or key == "G"
 
725
            #      or key == ">"):
704
726
            #    pass            # xxx end-of-buffer
705
 
            #elif (key == u"home" or key == u"meta <" or key == u"g"
706
 
            #      or key == u"<"):
 
727
            #elif (key == "home" or key == "meta <" or key == "g"
 
728
            #      or key == "<"):
707
729
            #    pass            # xxx beginning-of-buffer
708
 
            #elif key == u"ctrl e" or key == u"$":
 
730
            #elif key == "ctrl e" or key == "$":
709
731
            #    pass            # xxx move-end-of-line
710
 
            #elif key == u"ctrl a" or key == u"^":
 
732
            #elif key == "ctrl a" or key == "^":
711
733
            #    pass            # xxx move-beginning-of-line
712
 
            #elif key == u"ctrl b" or key == u"meta (" or key == u"h":
 
734
            #elif key == "ctrl b" or key == "meta (" or key == "h":
713
735
            #    pass            # xxx left
714
 
            #elif key == u"ctrl f" or key == u"meta )" or key == u"l":
 
736
            #elif key == "ctrl f" or key == "meta )" or key == "l":
715
737
            #    pass            # xxx right
716
 
            #elif key == u"a":
 
738
            #elif key == "a":
717
739
            #    pass            # scroll up log
718
 
            #elif key == u"z":
 
740
            #elif key == "z":
719
741
            #    pass            # scroll down log
720
742
            elif self.topwidget.selectable():
721
743
                self.topwidget.keypress(self.size, key)
727
749
    ui.run()
728
750
except KeyboardInterrupt:
729
751
    ui.screen.stop()
730
 
except Exception, e:
731
 
    ui.log_message(unicode(e))
 
752
except Exception as e:
 
753
    ui.log_message(str(e))
732
754
    ui.screen.stop()
733
755
    raise